DAFI21-101_3WGSUP — Aircraft And Equipment Maintenance Management

DAFI21-101_3WGSUP governs aircraft and equipment maintenance management for units and personnel supporting 3d Wing assets.

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  • Publication number: DAFI21-101_3WGSUP
  • Title: AIRCRAFT AND EQUIPMENT MAINTENANCE MANAGEMENT
  • Date: 2025-08-28

View DAFI21-101_3WGSUP on armypubs.army.mil


It contains requirements for functional and operational check flights, high-speed taxi checks, aircraft forms, quality assurance, and flight-line safety. The supplement requires compliance with its attachments and prescribes checklists, briefings, records, approvals, and database entries.

Applies to: It applies to all units assigned under the 3d Wing (3 WG), and all personnel performing or supporting maintenance on aircraft or equipment controlled by the 3 WG.

Topics covered

  • Functional check flights
  • Operational check flights
  • High-speed taxi checks
  • Aircraft forms and discrepancy documentation
  • Flight-line hearing protection
  • Aircraft maintenance engineering requests
  • Explosives-loaded aircraft parking

Questions and answers

What approval is required to exceed 100 KCAS during F-22 high-speed taxi checks?

3 OG/CC approval is required to exceed 100 Knots of Calibrated Air Speed (KCAS) during HST checks. (paragraph 9)

What hearing protection is required near running aircraft?

When working within 100 feet of running aircraft or 30 feet of a running Auxiliary Power Unit (APU), dual hearing protection will be worn. (paragraph 21-101)

When is hearing protection not required while driving on the flight line?

No hearing protection is required when driving on the flight line in a fully enclosed vehicle unless the vehicle has been identified as a hazardous noise producer at the operator’s position. (paragraph 21-101)

What protective footwear is required on F-22 aircraft?

All personnel will wear protective foot coverings (booties) when walking on any external surface of F-22 aircraft. (paragraph 21-101)

Where are personal electronic devices prohibited?

Use of these devices is prohibited within 10 feet of any aircraft and munitions unless a greater distance (e.g., fuel servicing, weapons loading, etc.) is specified by DAFI 91-208, Hazards of Electromagnetic Radiation to Ordnance (HERO) Certification and Management. (paragraph 21-101)

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