AD 52-16-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Martin-Marietta Corporation | 202A | MARTIN Model 202A Airplanes |
Unsafe Condition
Inadvertent actuation of the propeller reversing solenoid valves due to lack of protection of the reversing solenoid circuits from other electrical circuits and each other.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Protect the reversing solenoid circuits from other electrical circuits and each other using TWA Engineering Orders 5686, 5776, 5887, modify connectors and relay boxes per specified instructions, and institute maintenance practices including inspections at 350 hours and post-fault inspections.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Progressive modification program to begin no later than August 10, 1952, and be completed no later than May 1, 1953. Maintenance practices instituted not later than August 10, 1952.
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Affected Aircraft
Martin-Marietta Corporation Model 202A airplanes.
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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