AFI21-103_ACCSUP_ADD_Z — Equipment Inventory, Status, And Utilization Reporting System/t-38a Minimum Essential Subsystem List (mesl)

AFI21-103_ACCSUP_ADD_Z governs T-38A/AT-38B minimum essential subsystem status reporting for aircraft capability and mission use.

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  • Publication number: AFI21-103_ACCSUP_ADD_Z
  • Title: EQUIPMENT INVENTORY, STATUS, AND UTILIZATION REPORTING SYSTEM/T-38A MINIMUM ESSENTIAL SUBSYSTEM LIST (MESL)
  • Date: 2024-04-23

View AFI21-103_ACCSUP_ADD_Z on armypubs.army.mil


It defines minimum essential systems for assigned wartime, training, test, and other missions, and explains aircraft status, generation, deployment, and MESL columns. It requires records created by its processes to be maintained and disposed of in accordance with specified records management systems.

Applies to: It applies to all T-38A/AT-38B ACC units.

Topics covered

  • T-38A/AT-38B aircraft systems
  • Minimum essential systems and subsystems
  • Aircraft capability status
  • Mission Ready Available status
  • Aircraft generation and deployment
  • Design Operational Capability columns

Questions and answers

Can a Not Mission Capable aircraft be deployed?

A Not Mission Capable (NMC) aircraft may be deployed provided it is safe for flight and can be configured and generated to MRA status at an employment site. (paragraph 21-103)

What must ACC units use for aircraft generation and deployment?

All ACC units will generate, or deploy and regenerate, using ACC MESLs. (paragraph 21-103)

How is a MESL read for aircraft status reporting?

A MESL is read by comparing the systems stated by work unit code (WUC) against the Full Systems List (FSL) and all applicable Basic Systems List (BSL) across the page. (paragraph 21-103)

When is an aircraft status FMC for a rear-cockpit discrepancy?

Status is FMC if a discrepancy affects rear cockpit only and aircraft is flying with a solo pilot (including rear canopy visual distortion, discoloration, or crazing within technical order limits (rated pilot decision) and inoperative interphone). (paragraph 6)

What is required if the air conditioning auto mode is inoperative?

Air conditioning manual mode required if auto mode is inoperative. (paragraph 7)

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