AD 2009-09-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier | DHC-8-400 | Airworthiness Directives; Bombardier Model DHC-8-400 Series Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; Bombardier Model DHC-8-400 Series Airplanes |
Unsafe Condition
Fatigue cracks in the dowel pin hole at the aft hinge lug of the main landing gear (MLG) forward stabilizer brace, where the stop bracket is attached, could lead to stabilizer brace failure and main landing gear collapse.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect for damage (including wear, corrosion, foreign object damage, and cracking) on the MLG forward stabilizer brace assemblies. Inspect apex pins part number 46418-1 for excessive wear. Inspect the forward stabilizer brace lugs, stop bracket retention hole apex bushings, and stop bracket for damage. Detect 0.050-inch-long exposed surface cracks around the stop bracket mounting face and retention pin hole areas using eddy current or liquid penetrant inspection. Take corrective actions such as contacting Goodrich for repair instructions, replacing the stop bracket, reworking or replacing the forward stabilizer brace assembly, and performing detailed inspections and repairs as necessary.
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
Bombardier Model DHC-8-400, DHC-8-401, and DHC-8-402 series airplanes, certificated in any category, serial numbers 4001, 4003, and subsequent.
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.