EDWARDSAFBI21-126 — Temporary 2 (t-2) Modification Program

EDWARDSAFBI21-126 governs Temporary 2 (T-2) modifications of aerospace vehicles, including coordination, approval, procedures, and required forms.

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  • Publication number: EDWARDSAFBI21-126
  • Title: TEMPORARY 2 (T-2) MODIFICATION PROGRAM
  • Date: 2024-02-27

View EDWARDSAFBI21-126 on armypubs.army.mil


It covers program oversight, delegated authority, airworthiness evaluation, design reviews, inspections, technical orders, equipment, and modification documentation. It requires specific coordination and approval processes, procedures, forms, and records management for T-2 modifications.

Applies to: This Instruction applies to all affected work centers under the 412 TW and all organizations performing work on Edwards AFB, on assigned and possessed aircraft or equipment.

Topics covered

  • T-2 modification program
  • Airworthiness evaluation
  • Configuration Control Board delegation
  • Modification design reviews
  • Time Compliance Technical Orders
  • Aircraft modification procedures
  • Carry-on equipment and palletized cargo
  • Uncertified external and internal stores

Questions and answers

What responsibilities are assigned when modification authorities are delegated?

Assigns duties and responsibilities to 412 TW organizations when Configuration Control Board (CCB), Modification Engineering Authority (MEA), and Airworthiness assessment authority for T-2 modifications have been delegated (For some modifications airworthiness may be maintained by an outside organization).

Who maintains copies of delegation letters for T-2 modification authorities?

The Instrumentation Squadron will maintain copies of all letters delegating T-2 Modification CCB, MEA, and Airworthiness authority.

Who has waiver authority for this instruction?

Waiver authority for this instruction is the 412th TW Commander.

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