AD 62-26-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Lockheed Aircraft Corporation | 1049-54 | LOCKHEED Models 49, 149, 649, 649A, 749, 749A, and 1049-54 Series Aircraft |
| aircraft | Lockheed Aircraft Corporation | 149-46 | LOCKHEED Models 49, 149, 649, 649A, 749, 749A, and 1049-54 Series Aircraft |
| aircraft | Lockheed Aircraft Corporation | 49-46 | LOCKHEED Models 49, 149, 649, 649A, 749, 749A, and 1049-54 Series Aircraft |
| aircraft | Lockheed Aircraft Corporation | 649-79 | LOCKHEED Models 49, 149, 649, 649A, 749, 749A, and 1049-54 Series Aircraft |
| aircraft | Lockheed Aircraft Corporation | 649A-79 | LOCKHEED Models 49, 149, 649, 649A, 749, 749A, and 1049-54 Series Aircraft |
| aircraft | Lockheed Aircraft Corporation | 749-79 | LOCKHEED Models 49, 149, 649, 649A, 749, 749A, and 1049-54 Series Aircraft |
| aircraft | Lockheed Aircraft Corporation | 749A-79 | LOCKHEED Models 49, 149, 649, 649A, 749, 749A, and 1049-54 Series Aircraft |
Unsafe Condition
Fatigue cracking in the 0.25-inch radii adjacent to the one-inch diameter bearing surfaces on main landing gear crossheads, which could prevent normal extension and retraction of the main landing gear.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect crossheads by magnetic particle method or FAA approved equivalent for cracks in specified areas. Replace cracked crossheads with specific part numbers before returning aircraft to service. Adjust inspection intervals upon FAA approval.
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Compliance Time
Within the next 700 hours' time in service after the effective date of this AD, unless already accomplished within the last 1,800 hours' time in service prior to the effective date, and thereafter at intervals not to exceed 2,500 hours' time in service from the last inspection.
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Affected Aircraft
Lockheed Models 49, 149, 649, 649A, 749, 749A, and 1049-54 Series Aircraft with main landing gear crossheads P/N 307866 or P/N 288982 that have accumulated 10,000 or more hours' time in service.
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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