AD 47-10-25
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Lockheed Aircraft Corporation | 49-46 | LOCKHEED Model 49 |
Unsafe Condition
Generator mounting bolts may fail due to insufficient strength, leading to generator detachment.
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Required Actions
Replace the 12 mounting head-to-yoke bolts in each generator with new 1/4-inch bolts (P/N 63937) as specified in Eclipse-Pioneer Bulletin No. 70.
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Compliance Time
prior to March 1, 1947
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Affected Aircraft
Lockheed Aircraft Corporation Model 49 serials with Eclipse Type 1193, Model 1, Style A generators lacking the letter 'M' after their serial numbers.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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