AFI 21-101 ACC Sup — Aircraft And Equipment Maintenance Management
AFI 21-101 ACC Sup is listed as currentCurrent 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. Note: its publication date is 2021-04-22 — 5.3 years old — so check for newer interim changes before citing it.
A Guidance Memorandum dated 2025-09-04 modifies this publication. AFI 21-101 ACC Sup is still the current edition and its publication date has not changed — a GM is issued against an edition, takes effect immediately, and is normally folded into the next rewrite. The official PDF includes the GM at the front; if your saved copy predates 2025-09-04, download it again.
This instruction prescribes basic aircraft and equipment maintenance management policy implementation and procedures used throughout the United States Air Force (USAF) to perform Mission Generation (MG) functions.
Changes & supplements to AFI 21-101 ACC Sup
AFI 21-101 1FW Sup — Aircraft And Equipment Maintenance Management Current
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 AFI series
AFI 21-101 1FW Sup — Aircraft And Equipment Maintenance Management Current
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 AFI 21-101 ACC Sup in an official product.