EDWARDSAFBI21-102 — Maintenance Procedures For F-16 Aircraft, High Angle-of-attack (hiaoa) Departures

EDWARDSAFBI21-102 governs inspections and maintenance actions for F-16 engines, fault lights, and flight control systems during HiAOA training flights.

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  • Publication number: EDWARDSAFBI21-102
  • Title: MAINTENANCE PROCEDURES FOR F-16 AIRCRAFT, HIGH ANGLE-OF-ATTACK (HIAOA) DEPARTURES
  • Date: 2022-05-04

View EDWARDSAFBI21-102 on armypubs.army.mil


It establishes standard inspections and documentation procedures for anomalies experienced during HiAOA flights. It requires engine inspections, post-flight downloads, fault screening, and documentation of engine stall anomalies.

Applies to: This instruction is applicable to all F-16 aircraft and 412th Maintenance Group (MXG) organizations involved in HiAOA flights at Edwards Air Force Base.

Topics covered

  • HiAOA engine inspections
  • Engine fault reporting
  • F100 engine requirements
  • F110 engine faults
  • Engine download procedures
  • Engine stall documentation
  • Inverted HiAOA departures

Questions and answers

How many cycles must F100 engines have remaining for HiAOA profiles?

All F100 engines used in HiAOA profiles will have a minimum of 1,000 cycles remaining on the core to time change. (paragraph 2)

When must F100 engines be borescope inspected before HiAOA missions?

Engines will be borescope inspected by the 412th Maintenance Squadron, Propulsion Flight within the previous 50 flight hours prior to HiAOA missions. (paragraph 2)

When is an engine download required after a HiAOA flight?

An engine download will be accomplished by 416th Aircraft Maintenance Unit personnel after every HiAOA flight and screened for events or faults. (paragraph 2)

When can an engine be considered serviceable after a HiAOA flight?

If these are the only maintenance events or faults downloaded, the engine shall be considered serviceable and released for flight. (paragraph 2)

What oil level should F110 aircraft maintain during HiAOA missions?

To reduce the probability of encountering the faults identified in paragraph 2.2.2 engine oil level should be kept at or above 43 (1/2 pints) on aircraft flying HiAOA missions. (paragraph 2)

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