delivered the opinion of the court: The question presented in this case is whether the action of the Air Force Board for Correction of Military Records (hereinafter the Correction Board) denying plaintiff relief was arbitrary, capricious, unsupported by substantial evidence, or contrary to law. Plaintiff petitions this court for back pay, the correction of his records, and reinstatement to the rank of captain.1 We hold that the Correction Board’s action cannot be sustained under this standard of review and that plaintiff is entitled to relief.
*291Plaintiff was formerly a captain on active duty in the Regular United States Air Force until April 30, 1974, when he was involuntarily separated from the service because he had been passed over twice for promotion to the permanent grade of major.2 Plaintiffs difficulties began 5 years earlier when, on April 21, 1969, he was passed over for promotion to the temporary rank of major by a selection board. On November 17, 1969, plaintiff filed an application with the Correction Board seeking the removal of four officer effectiveness reports (OERs)3 from his records.4 These *292OERs had been in plaintiffs file since 1965.5 On December 7, 1970, before the Correction Board had acted on his application, plaintiff was passed over a second time for promotion to the temporary rank of major. .
On February 26, 1971, the Correction Board denied plaintiffs application, simply stating that plaintiff had not demonstrated the existence of error or injustice in his records.6 On August 18, 1971, plaintiff sought reconsideration, supplied more documentation and added a request for the voidance of the two passovers for temporary promotion. On November 8, 1971, while the Correction Board was still in the process of evaluating his application, plaintiff was passed over a third time for promotion to the temporary rank of major. After reconsideration of plaintiffs application, the Correction Board recommended to the Secretary the removal of the four OERs from plaintiffs record — some for "error,” some for unfairness and injustice7 — but plain*293tiffs request for voidance of the passovers for temporary major by selection boards which had considered the four removed OERs was never considered by the board or by the Secretary either through inadvertence or by mistake. The Secretary affirmed the board’s recommendation on November 22, 1971. Thereafter, on the basis of a record which did not include the four voided OERs, but without explanation of the absence of OERs covering plaintiffs performance during these periods or of the prior passovers, plaintiff was passed over a first time for promotion to the permanent rank of major, a fourth time for promotion to the temporary rank of major, and a second time for promotion to the permanent rank of major on August 7, 1972, August 21, 1972, and August 20, 1973, respectively.
On November 21, 1973, plaintiff again applied to the Correction Board, asking further reconsideration of his request to have his first two passovers (for temporary promotion) voided. On December 6, 1973, plaintiff presented a formal application seeking the voidance of all passovers, both temporary and permanent, retention on active duty, and the amendment of his records showing that he had been promoted to major. On March 29, 1974, this application was denied in executive session, without a hearing or explanation, and plaintiffs honorable discharge followed on April 30, 1974. On May 1, 1974, plaintiff brought this suit. On June 19, 1974, plaintiff petitioned the Correction Board to amend his records to show that he was separated from the Air Force under an authority which would permit his enlistment in the Regular Air Force. On August 7, 1974, the Secretary approved the Correction Board’s recommendation directing that plaintiffs records be corrected to reflect that he enlisted in the Regular Air Force for a period of 4 years on June 15, 1974, in the grade of sergeant (E-4). Plaintiff now asks this court to hold that the Correction Board on March 29, 1974, acted arbitrarily and capriciously in failing to void the passovers, and to grant him back pay from the time of his discharge (the difference in pay between a captain and sergeant), for an order directing the Secretary to remove all of plaintiffs nonselections for promotion to major, and to restore him to active duty commissioned status as a captain.
On June 13, 1975, the court, troubled by the lack of a rationale for the Air Force’s action in voiding the OERs but *294not the passovers, remanded the case to the Correction Board, instructing it "to make findings of fact showing the basis for its conclusions.” Sanders v. United States, 207 Ct. Cl. 962 (1975). The Correction Board responded by reviewing the procedural developments, and in an opinion under date of September 2, 1975, refused to void the passovers. The board action was approved by the Secretary on September 15, 1975. The board’s position was that the earlier board action in ignoring plaintiffs request to void passovers he felt to have been occasioned by the prejudicial OERs which were voided, was merely "administrative error” or "administrative oversight” that would not have made for a different result had the mistake not been made.
I
This case was first argued on March 11, 1977. At that time, defendant made a vigorous challenge to our jurisdiction and our role in reviewing the actions of correction and selection boards. Because of the importance of these issues, supplemental briefing by the parties was ordered and five amicus briefs have also been filed.8
Since that time, defendant has gone far to clarify its position and narrow the issues. During oral argument, defendant made a general statement to the effect that our jurisdiction over this case was not actually at issue. Defendant also explained that its jurisdictional contentions were in response to what it feels is an attempt by plaintiffs to shift the court’s attention to review of the military’s corrective process itself rather than military action which is the source of the particular claim for correction and remedial action. Thus, defendant has so completely entangled the concepts of our jurisdiction to review with the scope of our review, which is the primary source of controversy in this case, that such general statements are of little use as concessions, and it is necessary for the court to reach the threshold problem of subject-matter jurisdic*295tion and to discuss points made by the parties relating thereto.
The court has jurisdiction over money claims against the United States "founded either upon the Constitution, or any Act of Congress, or any regulation of an executive department, or upon any express or implied contract with the United States, or for liquidated or unliquidated damages in cases not sounding in tort.” 28 U.S.C. § 1491. As we set forth in Eastport S.S. Corp. v. United States, 178 Ct. Cl. 599, 372 F.2d 1002 (1967), the noncontractual9 claims within our jurisdiction are of two types — those in which a plaintiff has paid money to the Government and seeks its return, and those claims in which money has not been paid, but the plaintiff nonetheless asserts that payment is due. It has been held, in regards to the latter class of case, which we have before us, .that "the allegation must be that the particular provision of law relied upon grants the claimant, expressly or by implication, a right to be paid a certain sum.” Eastport S.S. Corp. v. United States, supra, 178 Ct. Cl. at 605, 372 F.2d at 1007. This category—
* * * includes the varied litigations in which we are urged to hold that some specific provision of law embodies a command to the United States to pay the plaintiff some money, upon proof of conditions which he is said to meet. * * * In this type of case, we have held, "a claimant who says that he is entitled to money from the United States because a statute or a regulation [or the Constitution] grants him that right, in terms or by implication, can properly come to the Court of Claims, at least if his claim is not frivolous but arguable.” Ralston Steel Corp. v. United States, 169 Ct. Cl. 119, 125, 340 F.2d 663, 667 (1965), cert. denied, 381 U.S. 950. [Eastport S.S. Corp. v. United States, supra, 178 Ct. Cl. at 606, 372 F.2d at 1008.]
Defendant cites United States v. Testan, 424 U.S. 392 (1976), as having some bearing on this case. Testan was a suit by Government trial attorneys in the Defense Supply Agency who claimed that their positions were erroneously classified as GS-13, alleging that they were entitled to GS-14 classifications and the pay therefor because their *296duties and responsibilities met the requirements for the higher grade. The Supreme Court approved the language in Eastport and could not find any statute as mandating compensation by the Federal Government for the injury of which plaintiffs had complained. The Court refused to find in the Classification Act, 5 U.S.C. §§ 5101-5115, any authority which changed the settled rule of employee pay claims under subsection (b) of the Back Pay Act, 5 U.S.C. § 5596, that "one is not entitled to the benefit of a position until he has been duly appointed to it.” United States v. Testan, supra, 424 U.S. at 402.
The Back Pay Act does not apply to servicemen. Originally, however, when plaintiff asserted a claim for promotion as well as entitlement to the rank he held when he was terminated, Testan’s application to the claim undoubtedly would have had to be considered. The promotion issue is not now properly before the court, having been withdrawn. The remaining issues being what they are, we do not see how the problems posed in Testan are at all relevant now. Plaintiff here, however, may derive comfort from the decision of the Supreme Court in Testan where it carefully distinguished between the case then before it and those cases concerning wrongful discharge where plaintiff would be claiming money improperly exacted or retained. Plaintiffs situation here is the latter. He alleges that he lost his job because of defendant’s mistakes. He asks for relief in the form of money for the salary lost. Plaintiff is not in the situation of a commissioned officer who complains of a passover because improper material in his selection folder was considered by a selection board but he is still serving without loss of his position and pay.10
II
37 U.S.C. § 204 provides the basic entitlement to pay for commissioned officers in the armed services. The statute confers on an officer the right to the pay of the rank he was appointed to up until he is properly separated from the *297service. This statute brings the present claim within the bounds outlined in Eastport if plaintiff was illegally discharged from commissioned status, as he alleges. Plaintiff has asserted both that he has been improperly terminated by the Air Force and that the Correction Board erred in denying monetary relief for the illegal separation.11 Plaintiffs claim thus falls within our jurisdictional mandate. Parenthetically, the correction board enabling act together with 37 U.S.C. § 204 makes a striking analogy to the Back Pay Act which authorizes retroactive recovery of wages whenever a federal civilian employee has "undergone an unjustified or unwarranted personnel action that has resulted in the withdrawal or reduction of all or a part of the pay” to which the employee is otherwise entitled. 5 U.S.C. § 5596(b). This court has jurisdiction over those cases claiming lost pay that not only contest the failure of a military correction board to correct an alleged legal or factual error but also the failure of a correction board to remove a prejudicial injustice, as required under its statutory mandate.
Defendant asserts that our jurisdiction can only be seen in terms of our review of the original military action which gave rise to the claim and not the action of the Correction *298Board. We do not believe that this can meaningfully be categorized as a question of our jurisdiction to review, but rather as a question of the scope of our review.
Defendant’s expressed fear is that the focus of these cases will be the action of the Correction Board itself and the procedures by which its decisions are made. Thus, procedural errors by the Correction Board might rise to the significance of substantive rights and an otherwise unmeri-torious claim might prevail. This court has never ascribed to the view that just because the Correction Board makes a simple, harmless procedural error plaintiff is entitled to recover. This point is more fully explored in Skinner v. United States, post at 322. In any event, this issue is not pertinent to this case, nor ripe for decision. Further, no serious error, such as violation of a regulation or published mandatory procedure by the Correction Board, has ever been alleged in this case, which is one more in the nature of failure to correct an obvious injustice.
We disagree with defendant, however, that our review should not take into consideration the decision of the Correction Board. On the contrary, we are a little surprised at the approach defendant appears to take herein, as we have reviewed these board actions with great frequency since 1951 when the present correction board statute became law, explicitly authorizing the payment of claims consequent upon the correction of military records. 65 Stat. 655 (1951). Congress has acted by providing servicemen with an administrative remedy for their wrongs. Once a plaintiff has sought relief from the Correction Board, such plaintiff is bound by that board’s determination unless he can meet the difficult standard of proof that the Correction Board’s decision was illegal because it was arbitrary, or capricious, or in bad faith, or unsupported by substantial evidence, or contrary to law, regulation, or mandatory published procedure of a substantive nature by which plaintiff has been seriously prejudiced, and money is due. See, e.g., Skinner v. United States, supra; Boyd v. United States, 207 Ct. Cl. 1 (1975), cert. denied, 424 U.S. 911 (1976); Cooper v. United States, 203 Ct. Cl. 300, 304 (1973).
We agree with defendant that 10 U.S.C. § 1552 confers a certain amount of discretion on the service Secretaries, acting through civilian correction boards. They are free to *299prescribe procedures, with the approval of the Secretary of Defense, for the conduct of business by those boards. We have held that the Secretaries are free to place limitations on the range of cases reviewable by the boards, Biddle v. United States, 186 Ct. Cl. 87, 94-95 (1968), and to differ with the recommendations of such boards where the evidence is susceptible to varying interpretations, Boyd v. United States, supra, 207 Ct. Cl. at 11. But, like the boards, the Secretary must not act in an arbitrary, capricious manner, unsupported by substantial evidence, or in violation of the law. Actions of both are subject to judicial reversal for violation of such standards. This is well settled. See Hodges v. Callaway, 499 F.2d 417 (5th Cir. 1974). To say that the statute confers on correction boards or the Secretaries such discretion that we cannot review their action when a case is properly within our jurisdiction, is contrary to the purpose of the statute.
Congress conferred broad powers on the Secretaries to remedy errors and injustices. Congress, in so doing, voluntarily and explicitly relinquished its authority in this area and terminated servicemen’s access to Congress for correction of military records by way of private bill. 2 U.S.C. § 190g. The conjunction of these statutes implies that the Secretaries have a duty as well as the power to afford servicemen proper relief. Action under 10 U.S.C. § 1552, except when procured by fraud, was made final and conclusive on officers of the United States, but not on the courts of the United States. A specific provision limiting review was stricken in order to permit judicial review "under appropriate circumstances.” Hearings Before a Subcommittee of the House Committee on Armed Services on H.R. 1181, 82d Cong., 1st Sess. 369, 377, 391-93, 398, 401, 450 (1951); H.R. Rep. No. 449, 82d Cong., 1st Sess. 3 (1951). A claim for back pay within our jurisdiction presents an appropriate occasion for reviewing the actions of correction boards. We believe that the opposite approach of ignoring the decision of the administrative body to which Congress has entrusted the duty to remedy these wrongs would be totally out of line with the traditional role that courts take in these matters. We have said so on prior occasions. In Friedman v. United States, 141 Ct. Cl. 239, 256-59, 158 F.Supp. 364, 374-77 (1958), the court supported *300this position in a careful review of the legislative history of the correction board statute. Cf. Friedman v. United States, 159 Ct. Cl. 1, 310 F.2d 381 (1962), cert. denied sub nom. Lipp v. United States, 373 U.S. 932 (1963). Even if it be argued that the statute and the legislative history are not all that clear and compelling, certainly it is a view reinforced by the Administrative Procedure Act, which embodies the basic presumption of judicial review to one "suffering legal wrong because of agency action, or adversely affected or aggrieved by agency action within the meaning of a relevant statute,” 5 U.S.C. § 702, so long aS no statute precludes such relief or the action is not one committed by law to agency discretion, 5 U.S.C. § 701(a), Hertzog v. United States, 167 Ct. Cl. 377, 384-85 (1964). The mere failure to provide explicitly by statute for such review is certainly no evidence of intent to withhold it. Such review is withheld only upon a showing of "clear and convincing evidence” of a contrary legislative intent. Abbott Laboratories v. Gardner, 387 U.S. 136, 141 (1967).
The Secretaries, acting through correction boards, have the authority and duty to correct records in order to correct an error or remove an injustice and to pay money found to be due when payment is necessary to correct a particular error or injustice. We have reviewed correction board actions in terms of the liberal mandate of the statute to correct errors and remove injustices, and failure to follow the purpose of the statute has been remedied in this court, a practice sanctioned by our decisions for over two decades, with no complaint from Congress. Indeed, "[t]he fact that this court has the jurisdiction to review actions of military correction boards is not disputable. Hertzog v. United States, 167 Ct. Cl. 377, 383-384 (1964), and cases cited therein.” Armstrong v. United States, 205 Ct. Cl. 754, 761 (1974). This was so even before our authority to correct records was made explicit in 1972 by amendment of 28 U.S.C. § 1491. See Eicks v. United States, 145 Ct. Cl. 522, 172 F.Supp. 445 (1959); Betts v. United States, 145 Ct. Cl. 530, 172 F.Supp. 450 (1959); Proper v. United States, 139 Ct. Cl. 511, 154 F.Supp. 317 (1957).
The broad impact of correction board action was described in Denton v. United States, 204 Ct. Cl. 188, 195 (1974), cert. denied, 421 U.S. 963 (1975), where we said:
*301* * * In the context of the correction of a military record, this means that once a discretionary decision is made to correct a record, the grant of appropriate money relief is not discretionary but automatic. * * *
Elsewhere we have said that where an applicant has convinced a correction board to correct his record it must not grant him "half-a-loaf” of relief. DeBow v. United States, 193 Ct. Cl. 499, 434 F.2d 1333 (1970), cert. denied, 404 U.S. 846 (1971). He must be made "whole.” Ray v. United States, 197 Ct. Cl. 1, 453 F.2d 754 (1972). In general, "[military correction boards 'have an abiding moral sanction to determine, insofar as possible, the true nature of an alleged injustice and to take steps to grant thorough and fitting relief.’ Duhon, supra at 570, 461 F.2d at 1281 [198 Ct. Cl. 564, 570, 461 F.2d 1278, 1281 (1972)], quoting Caddington v. United States, 147 Ct. Cl. 629, 634, 178 F.Supp. 604, 607 (1959).” Yee v. United States, 206 Ct. Cl. 388, 398, 512 F.2d 1383, 1387-88 (1975). We will determine, within the bounds of our limited scope of review, whether this duty has been fulfilled.
Ill
Whether the claim is based on legal error or material factual error, or injustice amounting to such error, is thus immaterial in regard to our power to review.12 It may be relevant, however, to the nature of proof necessary for plaintiff to recover. Where an involuntary separation from the military is precipitated by the commission of legal error, the action has been declared void and this court may award back pay to the aggrieved serviceman. Ricker v. United States, 184 Ct. Cl. 402, 396 F.2d 454 (1968). Since amendment of 28 U.S.C. § 1491 by Pub. L. No. 92-415 in 1972, the relief afforded may also include reinstatement and correction of records. To recover for failure to correct an alleged injustice, such as perhaps based on gross material error of fact or an action contrary to all evidence, it must be proved that such failure was arbitrary and capricious, or in bad faith, or contrary to law, or without rational basis, seriously prejudicial to plaintiff, and with *302monetary consequences. In such event, the abuse of administrative discretion rises to the level of legal error which merits judicial relief. These are comparatively rare cases. See, e.g., Doggett v. United States, 207 Ct. Cl. 478, 483 (1975); Skaradowski v. United States, 200 Ct. Cl. 488, 471 F.2d 627 (1973); Hertzog v. United States, supra; Prince v. United States, 127 Ct. Cl. 612, 119 F. Supp. 421 (1954). Perhaps they are infrequent because the proof must overcome the strong, but rebuttable, presumption that administrators of the military, like other public officers, discharge their duties correctly, lawfully, and in good faith. Savio v. United States, 213 Ct. Cl. 737 (1977); Boyd v. United States, supra, 207 Ct. Cl. at 9; Jordan v. United States, 205 Ct. Cl. 65 (1974); Brenner v. United States, 202 Ct. Cl. 678 (1973), cert. denied, 419 U.S. 831 (1974); Biddle v. United States, supra, 186 Ct. Cl. at 104; Hankins v. United States, 183 Ct. Cl. 32 (1968); Ward v. United States, 178 Ct. Cl. 210 (1967). Strong policies compel the court to allow the widest possible latitude to the armed services in their administration of personnel matters. See Orloff v. Willoughby, 345 U.S. 83 (1953); Mindes v. Seaman, 453 F.2d 197 (5th Cir. 1971). Although correction board decisions with pay consequences are reviewable here, it cannot be forgotten that Congress entrusted primary responsibility for the record-correction function to the service Secretaries acting through correction boards. Thus, while we may disagree with a correction board about whether or not a specific situation was unjust, we will not substitute our judgment for the board’s when reasonable minds could reach differing conclusions. Snell v. United States, 168 Ct. Cl. 219, 227 (1964).
The real genesis of plaintiffs claim is the failure of the selection boards to consider him on the basis of a record which portrayed his service career on "a fair and equitable basis” as the statutes require. 10 U.S.C. §§ 3442(c), 8442(c). We hold that a substantially complete and fair record is a necessary requirement of proper consideration by a selection board. As we stated in Weiss v. United States, 187 Ct. Cl. 1, 7, 408 F.2d 416, 419 (1969):
* * * the selection procedure must follow the law. The documents which are sent to a Selection Board for its *303consideration therefore must be substantially complete, and must fairly portray the officer’s record. If a Service Secretary place[s] before the Board an alleged officer’s record filled with prejudicial information and omits documents equally pertinent which might have mitigated the adverse impact of the prejudicial information, then the record is not complete, and it is before the Selection Board in a way other than as the statute prescribes. * * *
See Yee v. United States, supra, 206 Ct. Cl. at 396-97, 512 F.2d at 1387 (1975) (quoting Weiss). See also Brooks v. United States, 213 Ct. Cl. 115 (1977); Ricker v. United States, supra. Regulations prescribe that OERs are to be objective and prepared in a certain way. If a particular officer’s OER has not been so prepared and that defect could have resulted in his nonselection for promotion followed by discharge, this is legal and factual error and an injustice to the officer as well. If he is not made whole by correction of his record, we can and will protect the citizen-soldier’s legal rights if he is claiming lost pay and reinstatement. "It is established, of course, that federal courts have the power and the duty to inquire whether a military discharge was properly issued under the Constitution, statutes, and regulations.” Matlovich v. Secretary of Air Force, 591 F. 2d 852 (1978).
We do not believe that defendant disagrees with the authority of this general proposition or denies that plaintiff basically fits within the perimeters of this doctrine. Defendant does contend, however, that there is a further consideration which must be dealt with before plaintiff is entitled to relief. In this case defendant asserts that it must be determined whether the error and injustice actually caused plaintiffs nonselections for promotion and his separation from the Air Force. Defendant rightly points out that when the first three temporary selection boards considered plaintiffs selection folder that they were unaware it contained invalid OERs which would later be voided by the Correction Board. When the later temporary and permanent boards considered plaintiff, these OERs had been removed but the file contained no explanation and the earlier passovers were still of record. Defendant reasons from this that the passovers by the selection boards should not be set aside unless plaintiff shows a conclusive causal *304connection. In other words, it is argued that plaintiff must show that "but for” the error and injustice, unexplained to the selection boards, he "would or probably would have been selected.” Stated in reverse, plaintiff must show that the defects in his file alone led to the nonpromotion decisions and to his discharge.
Defendant has cited only one case where an officer has been required to meet anything remotely approaching its "but for” test. Knehans v. Callaway, 403 F.Supp. 290 (D.D.C. 1975), aff’d, 566 F.2d 312 (D.C.Cir. 1977). We think that the case can easily be distinguished on the facts and that as far as the law is concerned it supports the same result we reach on similar grounds and with the same authorities.
Briefly stated, Knehans was an Army major honorably discharged, having twice been passed over for promotion by selection boards. Before his discharge he alleged that the Secretary violated Army regulations and the statutes by permitting the boards to consider a selection file which did not accurately reflect his record. To the extent relevant to our discussion, there was a negative OER in that file. The Army agreed that the OER had been prepared in violation of certain regulations, voided and removed it, and permitted a standby advisory board to reconsider plaintiff for promotion. He was not promoted, however, and then sought relief from a correction board which also rejected his claim of entitlement to promotion and to remain in the military service.
The district court said, relying on numerous cases including those we rely on, that courts will not hesitate to review the actions of military selection boards which have allegedly engaged in procedural irregularities, although there is a presumption that boards act correctly, on proper records, and in good faith. Major Knehans was said to be a good officer but his other OERs were not of the highest quality and he was not recommended in them for promotion ahead of his peers. We note that the opposite was true of Captain Sanders and that, in fact, as we will later show, he was next in line for promotion. The Correction Board and the court found that Major Knehans’ file, although defectively constituted as to the one OER, still "fairly portrayed” his record and that the record did not support *305his contention that his nonselection was caused by that one OER. Again, the differences from the Sanders’ facts are evident. The Correction Board in the instant case found that his challenged OERs were erroneous, unjust, and prejudicial to his career and did not fairly portray Captain Sanders’ record. We have concluded that there was no other evidence to which his nonpromotion could seemingly be attributed. Their presence in Sanders’ file was erroneous and unjust but their removal did not make him whole when the passovers were allowed to stand. Here we have legal error by a selection board which considered an inappropriate file. Also, there was both error and unjustice, arbitrarily and capriciously not corrected by the Air Force Correction Board. In Knehans, on the other hand, the courts were unable to conclude that plaintiffs record was so outstanding that the decision by the Correction Board could be termed arbitrary, capricious, or without a rational basis.
The two civilian pay cases cited by defendant to support the application of the "but for” test are ones in which, after presentation of prima facie cases by plaintiffs, the burden was placed on defendant to show that but for the conduct complained of, abridgement of first amendment rights in Mt. Healthy City Board of Ed. v. Doyle, 429 U.S. 274 (1977), and job discrimination in Day v. Mathews, 530 F.2d 1083, 1085 (D.C.Cir. 1976), plaintiff would have been treated in the same way. Failing such proof, plaintiff in Day would be promoted by the court and plaintiff in Mt. Healthy would be rehired as a school teacher. The reason that this burden is on defendant is that "it is only equitable that any remaining uncertainty [about why plaintiff has not been promoted] be resolved against the party whose action gave rise to the problem.” Day v. Mathews, supra at 1086. Obviously, this reasoning, and the allocation of the burden to the defending party, provide no support that plaintiffs must meet such a standard as "but for” to win reinstatement.
The Correction Board in plaintiff Sanders’ case applied the "but for” test to deny him removal of the consequences of OERs it found unjustly prejudiced his military career. Were we to conclude that direct causation was properly required we would be forced to agree with the United *306States Court of Appeals for the District of Columbia, which held in Day v. Mathews, that the ultimate burden falls to defendant. Selection board proceedings are secret and the records of these proceedings are routinely and promptly-destroyed soon after the boards have completed their selections. A further difficulty for plaintiff would be that the but for test requires proof of inherently subjective considerations not really susceptible of proof. It would be all but impossible for a serviceman to prove he would have been promoted but for defendant’s error. Thus, the ultimate burden should be on the party whose error and obfuscation of the evidence caused the problem in the first place.
We think, however, that the question of shifting burdens is inappropriate in military pay claims for back pay. Such a burden would focus our attention on plaintiffs promotion rather than on the propriety of plaintiffs separation.13 In Day, promotion is granted to rectify past discrimination abuses unless the defending party presents a strong showing that these abuses were without effect. In Mt. Healthy, on the other hand, the Court was presented with an employment situation where the decision to rehire was discretionary. The burden (if it can be called that) is there to prevent an employer from being required to rehire a party, a decision normally within his discretion, when there were independent permissible grounds for not so doing. Here, unlike Day, there is no question of implied bad faith of the employer; the sole focus is on the injury to this plaintiff. Though similar to Mt. Healthy, in that promotion has elements of discretion, military promotion is based on an evaluation of the officer under the whole-man concept. This makes it difficult in most cases to ferret out independent reasons leading to nonselection. Also, unlike Mt. Healthy, separation of a serviceman is not normally up to the discretion of the employer, but must be accomplished in accordance with statute and regulation. Some connection between the error or injustice and the separation is expected though we do not perceive it in terms of shifting burdens of proof.
*307Defendant, in challenging our right to review the decisions of correction boards, as contrasted to selection boards, eloquently declares that such review will result in an "intolerable situation in which the claimants are battling the Government on the wrong battlefield, that of the Correction Boards, and firing salvo after salvo of discovery seeking out procedural errors at that level.” So far as discovery is concerned, of course, defendant’s but for test would cause plaintiffs to seek the widest latitude in trying to find out all about selection board processes and even to seek to query the board members about the subjective considerations that went into their judgments. Discovery is not evil, per se, and defendant is not hesitant to use it when to do so serves its purposes. We think, on balance, that in rejecting defendant’s but for test, the burden of discovery on the courts and on the parties will be less and that reasonable use of this process is appropriate to expose mistakes which merit relief as contemplated by the law.
We observe that carried to its logical conclusion, the defendant’s but for test would, assuming a plaintiff could produce any viable proof under it at all, place on the court the burden of deciding the issue of promotability. We are not a super selection board. We have repeatedly made it clear that deciding who gets a promotion is not our responsibility, absent proof of a legal right to it which has been violated. Doggett v. United States, supra, 207 Ct. Cl. at 482; Selman v. United States, 204 Ct. Cl. 675, 498 F.2d 1354 (1974). Simply stated, the effect of adopting and strictly applying the test, as defendant would have us do, would be to slam shut the courthouse door to review of military board actions, no matter how such boards might abuse their discretion and violate their regulations and the statutes. In short, we reaffirm that material factual errors and prejudicial injustices which are not corrected rise to the level of legal error in that the refusal to correct them is in derogation of the mandate of the boards’ enabling statutes and, where pay is lost and claimed, 10 U.S.C. § 1552, 37 U.S.C. § 204, and 28 U.S.C. § 1491, enable us to review and right the wrong. This is the rule that comports best with the legislative intent to do justice to those injured by the occasional legal mistakes to be expected in the *308administration of a vast military personnel system which Congress expects to be brought to account by judicial authority when necessary. We think that the foregoing are among the "appropriate circumstances” which Congress envisaged for judicial review in its committee report on the correction board statute, heretofore cited. Friedman v. United States, supra, 159 Ct. Cl. at 38-39, 310 F.2d at 403-04; Ashe v. McNamara, 355 F.2d 277, 280-81 (1st Cir. 1965); Jones, Jurisdiction of the Federal Courts To Review the Character of Military Administrative Discharges, 57 Colum. L. Rev. 917, 967-70 (1957).
IV
Plaintiff originally sought from the Correction Board the voidance of four OERs and the voidance of the two selection board passovers for the temporary rank of major. Fair consideration of plaintiff for promotion was not had, plaintiff contended, because of the presence of these unfair, prejudicial OERs in his record, as contained in his selection folder. The Correction Board, while it agreed and voided the OERs, failed to consider the passover issue. Later, plaintiff added a claim for voidance of permanent pas-sovers for, though they were made without consideration of the voided OERs, they were affected by the prior passovers by temporary boards, which were part of plaintiffs records.
The Correction Board had found that the presence of these OERs in plaintiffs records was indeed prejudicial to his Air Force career. On remand, however, the Correction Board explained the reason for not granting the further relief of voidance of the passovers:
* * * Although the Board realizes that the four prejudicial OERs may have been contributory to the applicant’s nonselections for promotion to the temporary grade of major in Fiscal Years 1970 through 1972, since his selection folder still contains OERs that are comparable to the voided reports, it is inconceivable that the prejudicial OERs were the sole and exclusive reasons for his nonselections. * * *
We will not pause to consider the weakness in the board’s argument which goes back to OERs earned 8 to 9 years before and which are not in issue. We do emphasize *309the board’s finding that the presence of the OERs it voided "may have been contributory to the applicant’s nonselec-tions for promotion to the temporary grade of major in Fiscal Years 1970 through 1972.” In the face of this finding, however, it rejected his application to eliminate the passovers on the basis that the OERs could not have been the "sole and exclusive reasons” for his nonselection. Of course, this is sheer speculation. This standard amounts to one of proof "beyond reasonable doubt.” It is simply a rewording of the but for standard which we have found is not appropriate to these cases and is not contemplated by the correction of records statute or regulations applicable here. See notes 6 and 11, supra. We have demonstrated that the regulations require only a showing of "probable material error or injustice.” [Emphasis added.] See note 6, supra. Plaintiff here does not have to show the prejudicial OERs were the "sole and exclusive” reason for nonselection to qualify for correction board relief. The board has violated both the spirit and letter of the statute and regulations. In suggesting that plaintiff would not have been promoted even if the defendant had not, by admitted "administrative oversight,” committed the admitted errors, the Correction Board is usurping the functions of the selection board, making itself a sort of super selection board, instead of correcting the error and injustice as its charter contemplates and as we think it mandates on this record. Correction boards have a statutory duty to determine whether there has been error or injustice and "to grant thorough and fitting relief.” Yee v. United States, supra.
Without more, it is established that the OERs had an adverse impact on plaintiffs nonselection to the temporary rank of major and that the Correction Board has committed legal error in applying the wrong standard of review and in failing to recognize plaintiffs legal rights were violated when the selection boards considered his record which was substantially incomplete and inaccurate, by the Correction Board’s own determination.
There is, however, an attempt by the Correction Board, which we do sympathize with, to formulate a standard for harmless error to avoid windfall recoveries. The Correction Board’s attitude was expressed as follows:
*310* * * Consequently, in the absence of a showing that the record placed before a selection board was substantially incomplete or inaccurate, the selection board is in the best position to evaluate the promotion potential of those eligible for promotion and its prerogative to render this vital determination should only be usurped under extraordinary circumstances. * * *
It is obvious that the Correction Board did not apply the above-quoted policy in deciding plaintiffs case. It spoke there as if it would grant relief if the record placed before a selection board "was substantially incomplete or inaccurate.” It is remarkable, therefore, that it did not void the passovers, as requested, for it found that the record of plaintiffs OERs must be, and it was, voided because "erroneous,” "unjust,” "inaccurate,” and "prejudicial to applicant’s Air Force career.” See note 7, supra. It was this defective record that three temporary selection boards considered. We think that the policy quoted above is reasonable, but we also think that the "extraordinary circumstances” mentioned there exist in this case in a dramatic way and that the Correction Board has failed to apply its announced test, opting instead for a harsher one, the "sole and exclusive” test which we have found legally impermissible as contrary to statute and regulation. By denying the excision of passovers which were based on inaccurate records, the Correction Board has prevented the selection board system from considering an officer’s true potential and actual benefit to the armed services in a promoted capacity. This, we conclude, cannot be countenanced except "under extraordinary circumstances.” Such circumstances are when the error or injustice was truly harmless, that is, when substantial evidence shows that it was unlikely that the officer would have been promoted in any event. That evidence is missing here. We have not therefore ruled that in every case the simultaneous voidance of an OER and affirmance of a passover will always constitute an abuse of discretion. Earlier in this opinion we have said that it takes more than harmless error or simple injustice to win judicial relief. But, the errors in this case as put before us are not innocuous.
It is admitted by the parties that OERs are the single most important documents in an officer’s records. The *311court said so in Brooks v. United States, supra, 213 Ct. Cl. at 120, 126. When plaintiff was first considered by a selection board for temporary promotion to major, four OERs in his record were defective for inaccuracy. One was the lowest rating he had ever received, and all four were well below his average. The only conclusion that can be reached with the information before us is that these four OERs, which did "not represent accurate appraisals” of plaintiffs record and were, again to quote the Correction Board, "unjust as well as prejudicial to applicant’s [plaintiffs] Air Force career,” necessarily had a substantial impact on the selection board’s decision. Although plaintiffs record steadily improved with the accumulation of good OERs, he was passed over again for temporary promotion to major by a selection board which considered the detrimental OERs before they were removed from his file. His troubles were also impacted by the previous passover(s) for promotion. When the Correction Board removed the prejudicial OERs because it said that they were erroneous, unjust, inaccurate, and prejudicial to plaintiffs career, it was ruling in effect that he had not been considered for promotion on the "fair and equitable” basis mandated by the statutes applicable to Army and Air Force officer promotions. 10 U.S.C. §§ 3442(c), 8442(c). Since he was not so considered, his passovers should have been removed too, so that he could have had a clean slate for selection board consideration on a "fair and equitable” basis. Not to do this was both legal error and an injustice to plaintiff because it was an arbitrary, capricious decision, and an abuse of discretion which aborted the selection process and led to a violation of the statute.
The predicate for recovery herein, however, is the invalidity of plaintiffs termination. Only if the authority to terminate plaintiff was improperly exercised can he recover. Plaintiffs termination was accomplished under the authority of 10 U.S.C. § 8303(d) which required such upon two failures for permanent promotion. In plaintiffs case, he was twice passed over for permanent promotion to the rank of major, as well as a fourth passover for the temporary rank of major,14 on the basis of a record which *312did not contain the four defective OERs. The question of whether the original error or injustice impacted the nonselections for permanent rank remains.
Although plaintiff was considered for promotion to permanent rank without the four defective OERs, the Air Force did not require at that time that any explanation, concerning the gap in a serviceman’s record caused by the removal of the OERs, be placed in his record.16 Unexplained gaps in an officer’s record prejudice that officer’s chances for promotion. See Yee v. United States, supra.
Also, the selection boards for permanent major considered plaintiff on the basis of a record which contained the fact that he had been previously passed over for promotion (i.e., by boards that had considered the defective OERs). The parties and even the Correction Board acknowledge that previous passovers may detrimentally affect promotion opportunities. Defendant’s own statement emphatically demonstrates the effect of these passovers on the later consideration of plaintiff, "[b]ut that improvement [the improvement in plaintiffs record before later selection boards due to his receipt of several "outstanding” OER ratings] would be counterbalanced by his first two pas-sovers so that one cannot say that plaintiffs net position was greatly improved in his later selection board appearances.” Of course, we have concluded that these earlier "counterbalancing” passovers were improperly in plaintiffs record. Thus, the only possible conclusion is that the original error or injustice was compounded rather than remedied by voidance of the OERs without the voidance of the passovers and the placement in plaintiffs record of an adequate explanation of the gaps created thereby.
Plaintiff, in addition, has presented convincing evidence of the detrimental effect the lack of excision and explanation had on his later opportunities for permanent promotion. This evidence, which has not been contested, shows plaintiffs relative position before the two permanent selection boards.
*313Regular Major Boards
CY 72 CY 73 7 Aug. 72 20 Aug. 73
Points below cutoff .5 .5
Number with same score as applicant 35 42
Number between applicant and cutoff 0 0
We are advised that plaintiffs ranking herein is based on the whole-man concept which takes into consideration many factors indicating plaintiffs job performance and potential for promotion in comparison with other applicants. These factors include OER ratings, education, breadth of experience, overseas tours, level/degree of responsibility, professional competence, combat achievements, awards, and leadership. In addition, plaintiffs comparative position takes into account other factors, such as statutory requirements, budgetary limitations and manpower requirements, which dictate the number of officers who may be selected by any particular selection board. It is clear that the Correction Board made no effort to determine whether any of these factors were considered by the selection board or in weighing whether plaintiff had suffered an error or injustice in the selection process. Plaintiff holds a bachelor’s degree, is a graduate of several Air Force schools, flew 127 combat missions in Southeast Asia, received the Air Medal with seven oak-leaf clusters and the Distinguished Flying Cross with two oak-leaf clusters. Also, we have discussed his active duty assignments at increasingly higher levels of responsibility.
Because of the discretionary and subjective nature of the promotion process, it may not be sufficient or even necessary to prove with absolute certainty that an officer would definitely have been promoted simply by showing, as was done here, that an officer was next on the list to be promoted and a change in his records before the selection boards would have resulted in a more favorable presenta*314tion of the officer’s potential. Boyd v. United States, supra. As we have heretofore noted, defendant has required that plaintiff show that "but for” the error the officer "would or probably would have been selected.” [Emphasis added.] We do not accept this test, as we have indicated, but even so we believe that plaintiff has met it. This evidence, in the case of Captain Sanders, is persuasive in showing that the selection boards were chargeable with prejudicial legal error in their consideration of plaintiff for permanent promotion. The error was that the selection boards did not consider a record which reflected plaintiffs service on "a fair and equitable basis” as the statutes require. 10 U.S.C. §§ 3442(c), 8442(c). The selection boards were led into this error by the failure of the Correction Board in 1971 to void passovers for temporary promotion which grew from the defective OERs. The fact that the selection boards were unaware of this prejudicial legal error does not correct or excuse it. The Correction Board’s final decision, that refused to correct this error, lacked a rational basis.
Neither the Correction Board nor defendant has cited any evidence detracting from this conclusion. There is absolutely no basis for concluding that the error and injustice were harmless. Thus, we repeat, the Correction Board’s decision denying plaintiff complete relief was arbitrary, capricious, without rational basis, unsupported by substantial evidence, and contrary to law. The Air Force’s authority to terminate plaintiff was improperly exercised, and plaintiff is entitled to back pay calculated in accordance with law, and we order his reinstatement to the rank of captain from the date of discharge on April 30, 1974. We further order the Secretary to remove from plaintiffs records all passovers for promotion to major, including the four passovers for temporary promotion and the two for permanent promotion. We also order that an appropriate nonprejudicial explanation be put in plaintiffs records dealing with the gaps therein due to removed OERs and nonselections, if it is not already accomplished. Such an explanation should cover the period of plaintiffs reconstructed service from the time of his discharge up to his reinstatement. It is ordered that upon his corrected record plaintiff be given, if he wishes, restoration to active duty commissioned status and an opportunity for selection *315in due course by a duly constituted statutory selection board.
Plaintiffs motion for summary judgment is granted in conformity with this opinion. Defendant’s cross-motion is denied. Judgment is entered for plaintiff with the amount thereof to be determined pursuant to Rule 131(c). Under Rules 149 and 150 the case is remanded to the Secretary of the Air Force with orders to implement, within a period of not to exceed 6 months, the other relief made a part of this judgment.
Both in his petition to the Correction Board and in his petition to this court plaintiff also requested promotion to the rank of major. At oral argument, however, plaintiff abandoned this request, and it is not now before the court.
10 U.S.C. § 8299(h) provides that an officer, twice passed over for promotion to permanent rank, may not be again considered for promotion under that section. 10 U.S.C. § 8303(d) provides that, after two passovers, an officer will be either retired if appropriate or otherwise separated from the service.
The military periodically rates individual officers as to their performance and promotion potential. These ratings, which are known as OERs, contain both written comments and numerical evaluations usually made by the rated officer’s immediate supervisor.
The following is a list of the OER ratings received by plaintiff between April 1960 and July 1973:
*292
Defendant’s answer raises the affirmative defense of laches, but it is not referred to as such or emphasized in defendant’s motion for summary judgment or supplemental briefing. We consider the defense abandoned. The boards that considered plaintiffs applications for correction found them to be timely filed or that the delay in filing was excusable in the interest of justice. It was not until plaintiff was first passed over in 1969 that his OERs became an issue. In any event, defendant has not shown the prejudice required for laches.
The standard for reviewing applications for the correction of records of Air Force personnel is found at 32 C.F.R. § 865.7(b) (1972), AFR 31-3 § B(8)(b) (Oct. 21, 1970), which provides: "(b) Denial of application. The Board may deny an application if it determines that insufficient relevant evidence has been presented to demonstrate the existence of probable material error or injustice, * *
The record of the proceedings of the AFBCMR, dated Nov. 5, 1971, recommending voidance of the four challenged OERs, found two OERs "erroneous as well as prejudicial” because "vital information relating to applicant’s performance of duty was completely overlooked when the reports were prepared.” The third was found "unjust and inaccurate,” because "job accomplishments and/or achievements [were] not reported by the rater * * * either through omission and/or inadvertence * *
The fourth OER was found "unjust and prejudicial” on the grounds that the rater’s comments indicated a performance level "definitely above” the numerical rating given.
The conclusion of the report stated that "the Board finds that an injustice has been demonstrated and * * * that the challenged OERs do not represent accurate appraisals of applicant’s performance during the periods and are therefore unjust as well as prejudicial to applicant’s Air Force career. The Board recommends the challenged reports be voided and removed from applicant’s records.”
Helpful amicus briefs were received by the court. The rise in the interest in and the number of similar cases challenging release from active duty by reason of nonselections for promotion are direct consequences of the reduction in military manpower requirements and consequent increasingly competitive nature of the officer selection process.
It has long been settled that a serviceman’s rights are statutory, not contractual. Bell v. United States, 366 U.S. 393 (1961); Keef v. United States, 185 Ct. Cl. 454 (1968).
Where a correction board fails to correct an injustice or a passover is challenged but a back pay claim has not arisen, plaintiffs remedies, if any, would be in the district court by mandamus, 28 U.S.C. § 1361, or declaratory judgment, 28 U.S.C. § 2201.
The first public law providing for the correction of military records was section 207 of the Legislative Reorganization Act of 1946. It was amended in 1951 by 65 Stat. 655, now codified as 10 U.S.C. § 1552, which provides:
"(a) The Secretary of a military department, under procedures established by him and approved by the Secretary of Defense, and acting through boards of civilians of the executive part of that military department, may correct any military record of that department when he considers it necessary to correct an error or remove an injustice. * * * Except when procured by fraud, a correction under this section is final and conclusive on all officers of the United States.
"(c) The department concerned may pay, from applicable current appropriations, a claim for the loss of pay, allowances, compensation, emoluments, or other pecuniary benefits, or for the repayment of a fine or forfeiture, if, as a result of correcting a record under this section the amount is found to be due the claimant on account of his or another’s service in the Army, Navy, Air Force, Marine Corps, or Coast Guard, as the case may be. * * *”
The Senate report on the bill, adding the payment provision to 10 U.S.C. § 1552, stated:
"The purpose of the proposed legislation, as amended, is to authorize the Secretaries * * * to make certain payments which become due as a result of action taken by the respective Boards for the Correction of Records * * [S. Rep. No. 923, 82d Cong., 1st Sess., reprinted in [1951] 2 U.S. Code Cong. & Ad. Serv. 2469.]
Payment of money damages was thus clearly contemplated as stemming from corrections.
On the distinction between error and injustice, see Reale v. United States, 208 a. CL 1010, 1011-12, cert. denied, 429 U.S. 854 (1976).
This discussion in no way bears upon our attitude or the standards by which we would review a claim for promotion which was properly before the court.
Though we will not discuss this fourth temporary passover, the same considerations apply equally.
Such a requirement first appeared in AFM 36-10, effective Apr. 30, 1974. The language, which now appears in AFR 36-10, ¶ 3-7(c) (Sep. 15, 1975) provides for one of the following statements to appear in the serviceman’s record as appropriate: " 'Not rated for the period (date) through (date). Report for this period not available for administrative reasons,’ or 'Not rated for the period (date) through (date). Report for this period was removed through appeals board action.’ ”