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AFMCI 21-100V1 — Depot Maintenance Principles

AFMCI 21-100V1 is listed as current Current
in the AF e-Publishing catalog as of our last index refresh (2026-08-23). Status is mirrored from that catalog, re-checked weekly — every change is logged.
BranchU.S. Air Force
SeriesAFMCI
Publication date2024-01-22 (2.6 years ago)
StatusCurrent
Proponent / OPRAFMC
Source of recordAF e-Publishing

Download PDF Official document (AF e-Publishing)

What this publication covers

This instruction provides command level policy, guidance, and staff coordination for the management of Air Force (AF), and applicable other service, aircraft, and aerospace equipment depot maintenance within the Air Force Sustainment Center (AFSC). AFSC provides oversight for the three Air Logistics Complexes (ALCs), the Geographically Separated Units (GSUs), and Non-Standard Organizations (NSOs) aligned under them. This instruction requires AFSC and Air Force Life Cycle Management Center (AFLCMC) to develop, implement, and maintain standardized depot maintenance processes and procedures for all activities required to perform depot maintenance for AF, and applicable other service, weapon systems and aerospace equipment at the ALCs, GSUs, and NSOs.

What changed in this edition

This instruction has been substantially revised and restructured into three volumes and must be reviewed in its entirety. Major changes include the incorporation of Guidance Memorandums, corrections, clarifications, and relevant information from other directives

Publications state their own changes on page 1 — behind a PDF the official host will not serve to a search engine. This is that section, verbatim. It describes the edition above, not every historical change.

Changes & supplements to AFMCI 21-100V1

Records in this branch carrying the same series and number — interim changes, guidance memoranda, and unit supplements. A copy stamped with one of these is a different document from the base publication.

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Nearby in the AFMCI series

This is an unofficial index built from the public catalog. The controlling copy is always the one on AF e-Publishing — verify there before citing AFMCI 21-100V1 in an official product.