AD 2003-04-22
Unsafe Condition
Below-limit propeller flight idle blade angles due to incomplete dimensional checks and nondestructive evaluations during Major Periodic Inspection (overhaul) of model D-1199-2 propeller control units (PCUs).
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect for below-limit propeller flight idle blade angles, remove affected PCUs from service, and perform a complete Major Periodic Inspection (overhaul) when time-since-new or time-since-overhaul limits are reached or when any flight idle blade angle is below limits.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Hartzell Propeller Inc. model HD-E6C-3B/E13890K propellers with certain serial numbers of model D-1199-2 propeller control units (PCUs) installed.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.