AD Amdt-39-10341
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 727 | Airworthiness Directives; Boeing Model 727 Series Airplanes |
Unsafe Condition
Installation of manual extension gearbox assemblies with incorrect housings could reduce structural integrity and result in inability to lock the MLG in a down position during landing.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Perform a one-time visual inspection of the manual extension gearbox assembly of the main landing gear to detect incorrect gearbox housings; conduct repetitive dye penetrant inspections of the housings to detect cracking; replace incorrect housings with correct ones.
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
Boeing Model 727 series airplanes
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
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