AD 52-15-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Martin-Marietta Corporation | 202 | MARTIN Models 202 Airplanes |
Unsafe Condition
The propeller reversing system may allow inadvertent activation of the reversing feature due to electrical faults, short circuits, or unintended energization of the reversing solenoid circuit, leading to unintended propeller reversal during flight or ground operations.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Modify terminal strips and pin connector assemblies, shield reversing solenoid circuit relay contacts, rewire feathering button circuit, revise reversing circuits per Hamilton Standard Service Bulletin No. 236, isolate adjacent reversing solenoid circuits, install warning devices and throttle quadrant stops, remove alternate ground circuits, and perform periodic inspections and electrical checks as specified.
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
Martin-Marietta Corporation Model 202 airplanes with Hamilton Standard reversing propeller installations.
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
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.