AD 47-10-34
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Lockheed Aircraft Corporation | 49-46 | LOCKHEED Model 49 |
Unsafe Condition
Exhaust system ball joint assemblies (Solar P/N CV-611 and CV-615-1 through CV-615-18) may fail due to fatigue or corrosion if not inspected and reworked in accordance with specified procedures.
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Required Actions
Inspect exhaust system ball joints per LAC Service Information Letter No. 42 at intervals per operator's approved maintenance specification. Disassemble ball joints every 250 hours and replace unsatisfactory parts. Overhaul period for new Solar ball joints may align with engine overhaul period as per operator's approval.
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Compliance Time
Before further flight unless inspections are conducted within the specified intervals (e.g., 250-hour disassembly periods).
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Affected Aircraft
Lockheed Aircraft Corporation Model 49 serial numbers up to and including 2088.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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