AD 51-03-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Martin-Marietta Corporation | 202 | Martin Models 202 and 202A Aircraft |
| aircraft | Martin-Marietta Corporation | 202A | Martin Models 202 and 202A Aircraft |
Unsafe Condition
Cracks in main landing gear crankshafts (P/N 202SD82019 and 202SD82021) due to reported occurrences.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace main landing gear crankshafts with new ones bearing the same part numbers and having a ground radius around the periphery of the hole for the retract pin.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
By April 1, 1951, for aircraft with main landing gears having 4,000 hours service or more, and thereafter every 4,360 cycles of landing gear operation.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Martin-Marietta Corporation Models 202 and 202A Aircraft with main landing gears having 4,000 hours service or more.
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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