AFMCI21-105 — Corrosion Program And Marking Of Aerospace Equipment

AFMCI21-105 governs corrosion prevention and control programs and aerospace equipment marking requirements within Air Force Materiel Command.

Search AFMCI21-105

  • Publication number: AFMCI21-105
  • Title: CORROSION PROGRAM AND MARKING OF AEROSPACE EQUIPMENT
  • Date: 2026-08-28

View AFMCI21-105 on armypubs.army.mil

It assigns corrosion program duties to test wing organizations, Air Logistics Complexes, and owning activities. It requires aircraft cleaning, corrosion inspections, deficiency reporting, coating maintenance, and authorized marking practices.

Applies to: This instruction does not apply to the Air National Guard, Air Force Reserve, and Space Force and their units.

Topics covered

  • Aircraft corrosion inspections
  • Aircraft wash rack facilities
  • Corrosion prevention materials
  • Aircraft paint waivers
  • Aircraft coating system scoring
  • Aircraft marking requirements

Questions and answers

What must maintenance personnel inspect when removing aircraft parts?

All maintenance personnel, regardless of Air Force Specialty Code, shall examine each part removed and inspect the inside of all exposed areas for corrosion. (paragraph 2)

How must corrosion deficiencies be reported?

Maintenance personnel shall report all corrosion deficiencies through the MIS IAW 0020 series technical orders or depot equivalent. (paragraph 2)

What approval is required for aircraft markings not previously approved?

Aircraft markings not previously approved, necessitates a waiver from HQ AFMC/A4M. (paragraph 5)

How often must aircraft coating systems be scored?

All units are required to score aircraft coating systems to determine frequency of topcoat application. (paragraph 5)

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