AD 60-07-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Martin-Marietta Corporation | 404 | MARTIN Model 404 Aircraft |
Unsafe Condition
The landing gear lock plunger P/N 404-4088121-3 can jam in the retracted position and flare out into a knife edge, causing cutting action in the forward bushings of the plunger cylinder.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace lock plunger P/N 404-4088121-3 with new P/N 404-4900121-5 on each main landing gear by July 31, 1960. Visually inspect main and nose gear lock plungers at each 320 hours' time in service starting no later than May 15, 1960, for spalling or flaring, and chamfer corners if defects exist.
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Compliance Time
by July 31, 1960
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Affected Aircraft
Martin-Marietta Corporation Model 404 Aircraft, all serial numbers
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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