AFMCI21-126 governs the management, control, documentation, and processing of Temporary 2 modifications to aerospace vehicles.
View AFMCI21-126 on armypubs.army.mil
It covers T-2 modification classification, approval, design reviews, safety determinations, demodification, flight releases, and revalidation. It also addresses contracted modifications, lease or loan agreements, funding reimbursement, local supplements, and prescribed forms.
Applies to: This instruction does not apply to the Air National Guard or US Air Force Reserve units and members.
T-2 modifications may be installed only for the duration of the flight test program unless stated in the demodification plan or an extension is approved by the Modification Engineering Authority (MEA) (reference paragraph 12.2). (paragraph 1)
All T-2 modifications, to include hardware/software, will be classified as either Major or Minor. (paragraph 5)
All Major T-2 aircraft modifications require an Independent Modification Review (IMR) by the responsible SPM. (paragraph 6)
When a final flight release cannot be issued (e.g., an incomplete modification/demodification not affecting flight safety or a program requirement), then an AFMC Form 243 of up to 180 days may be issued by the responsible CCB authority.
In the event that the SPM does not concur, the test article will be fully demodified and the organization funding the modification will be responsible for funding the demodification.