AD 51-25-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Martin-Marietta Corporation | 202 | Martin Models 202 and 202A Airplanes |
| aircraft | Martin-Marietta Corporation | 202A | Martin Models 202 and 202A Airplanes |
Unsafe Condition
Inadvertent shorting between the "MAIN" and "CONTROL" terminals of the D7231-125 inverter remote reset circuit breaker.
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Required Actions
Install a cover over the D7231-125 inverter remote reset circuit breaker terminals. Compliance must follow Martin Service Instruction Letter No. 8 dated September 10, 1951, or an equivalent method.
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Compliance Time
January 1, 1952
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Affected Aircraft
Martin-Marietta Corporation Models 202 and 202A Airplanes, all serial numbers.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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