AD 54-05-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Sensenich Propeller Manufacturing Company, Inc. | 76AM6-2 | SENSENICH Model M76AM-2 Propellers |
Unsafe Condition
Blade tip failures due to nicks, gouges, and scratches within 8 inches of the blade tip on Model M76AM-2 propellers installed on Lycoming O-290-D and O-290-D2 engines.
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Required Actions
Remove all nicks, gouges, and scratches within 8 inches of the blade tip, ensuring all traces of damage are eliminated. Use coarse emery cloth for minor damage and polish with fine emery cloth. Rebalancing is not required for minor repairs.
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Compliance Time
March 15, 1954, and at intervals not to exceed each 25 hours operation thereafter.
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Affected Aircraft
SENSENICH Model M76AM-2 Propellers installed on Lycoming Models O-290-D and O-290-D2 Engines.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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