Title 10, Armed ForcesRelease 119-110

§2255 Aircraft Accident Investigation Boards: Composition Requirements

Title 10 › Subtitle A — General Military Law › PART IV — SERVICE, SUPPLY, AND PROPERTY › CHAPTER 134 — MISCELLANEOUS ADMINISTRATIVE PROVISIONS › SUBCHAPTER II — MISCELLANEOUS ADMINISTRATIVE AUTHORITY › § 2255

Last updated Sep 22, 2026|Official source

Summary

When a military department starts an investigation of a Class A aircraft accident, the Secretary must pick board members so a majority come from units other than the mishap unit. If the board has only one member, that person must be outside the mishap unit. For boards with more than one member, at least one member must be a service member or a Department of Defense employee who knows about aircraft accident investigations. The Secretary may waive the outside-members rule only if it is not practical because the crash was in a remote place, the investigation must begin right away, or there are no qualified people outside the mishap unit—and only if the board’s objectivity will not be harmed. A single-member board must consult with a knowledgeable service member or DoD employee. Within 60 days after an accident under the Secretary’s control, the Secretary must decide if it is a Class A accident. A Class A accident means it caused death or permanent disability, caused damage above the dollar amount set by the Secretary of Defense, or destroyed the aircraft. The mishap unit is the squadron, battalion, or similar unit to which the flight crew was assigned.

Full Legal Text

Title 10, §2255

Armed Forces, Source: USLM XML via OLRC

(a)Required Membership of Boards.—
Whenever the Secretary of a military department convenes an aircraft accident investigation board to conduct an accident investigation (as described in section 2254(a)(2) of this title) with respect to a Class A accident involving an aircraft under the jurisdiction of the Secretary, the Secretary shall select the membership of the board so that—
(1)a majority of the members (or in the case of a board consisting of a single member, the member) is selected from units other than the mishap unit or a unit subordinate to the mishap unit; and
(2)in the case of a board consisting of more than one member, at least one member of the board is a member of the armed forces or an officer or an employee of the Department of Defense who possesses knowledge and expertise relevant to aircraft accident investigations.
(b)Exception.—
The Secretary of the military department concerned may waive the requirement of subsection (a)(1) in the case of an aircraft accident if the Secretary determines that—
(1)it is not practicable to meet the requirement because of—
(A)the remote location of the aircraft accident;
(B)an urgent need to promptly begin the investigation; or
(C)a lack of available persons outside of the mishap unit who have adequate knowledge and expertise regarding the type of aircraft involved in the accident; and
(2)the objectivity and independence of the aircraft accident investigation board will not be compromised.
(c)Consultation Requirement.—
In the case of an aircraft accident investigation board consisting of a single member, the member shall consult with a member of the armed forces or an officer or an employee of the Department of Defense who possesses knowledge and expertise relevant to aircraft accident investigations.
(d)Designation of Class A Accidents.—
Not later than 60 days after an aircraft accident involving an aircraft under the jurisdiction of the Secretary of a military department, the Secretary shall determine whether the aircraft accident should be designated as a Class A accident for purposes of this section.
(e)Definitions.—
In this section: (1)
(2)The term “mishap unit”, with respect to an aircraft accident investigation, means the unit of the armed forces (at the squadron or battalion level or equivalent) to which was assigned the flight crew of the aircraft that sustained the accident that is the subject of the investigation.

Legislative History

Notes & Related Subsidiaries

Editorial Notes

Amendments

2003—Subsec. (b). Pub. L. 108–136 struck out par. (1) designation before “The Secretary”, redesignated subpars. (A) and (B) of former par. (1) as pars. (1) and (2), respectively, redesignated cls. (i) to (iii) of former subpar. (A) as subpars. (A) to (C), respectively, of par. (1), and struck out par. (2) which read as follows: “The Secretary shall notify Congress of a waiver exercised under this subsection and the reasons therefor.”

Statutory Notes and Related Subsidiaries

Effective Date

Pub. L. 104–201, div. A, title IX, § 911(b), Sept. 23, 1996, 110 Stat. 2622, provided that: “Section 2255 of title 10, United States Code, as added by subsection (a), shall apply with respect to any aircraft accident investigation board convened by the Secretary of a military department after the end of the six-month period beginning on the date of the enactment of this Act [Sept. 23, 1996].”

Reference

Citations & Metadata

Citation

10 U.S.C. § 2255

Title 10, Armed Forces

Last Updated

Sep 22, 2026

Release point: 119-110