AD 2009-12-12
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Various | Airworthiness Directives; ATR Model ATR42-500 and ATR72-212A Airplanes |
Unsafe Condition
Loss of the fail-safe design criteria for the rudder trim, pitch trim, and stick pusher control functions, which could result in loss of control of the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the identified airplanes to verify and, when necessary, finalize the complete and correct implementation of ATR modification No. 05780. This includes inspecting the protection sleeves for correct installation, installing new protective sleeving on the wire bundles in the rear baggage zone if necessary, and conducting a detailed inspection for correct positioning of the clamps for the wire bundles, re-installing them if necessary.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 12 months of the effective date of the AD.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
ATR Model ATR42-500 airplanes, manufacturer serial numbers (MSN) 667, 669, and 671; ATR Model ATR72-212A airplanes, MSNs 756 to 784 inclusive, except MSNs 770, 773, and 783.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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