AD 56-09-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Martin-Marietta Corporation | 202 | MARTIN Models 202, 202A, and 404 Aircraft |
| aircraft | Martin-Marietta Corporation | 202A | MARTIN Models 202, 202A, and 404 Aircraft |
| aircraft | Martin-Marietta Corporation | 404 | MARTIN Models 202, 202A, and 404 Aircraft |
Unsafe Condition
Shearing of rivets securing the rudder torque tube flange (P/N 2021U42196) to the rudder torque tube (P/N 2021D19331) caused by gust buffeting with gust locks not engaged, resulting in loss of adequate and/or positive rudder control.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace the 3/16-inch rivets with 1/4-inch 24ST heat treated rivets.
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Compliance Time
September 1, 1956
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Affected Aircraft
Martin-Marietta Corporation Models 202, 202A, and 404 Aircraft
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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