AD 59-26-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Lockheed Aircraft Corporation | 1049-54 | LOCKHEED Models 649, 749, 1049-54, and 1049C Aircraft |
| aircraft | Lockheed Aircraft Corporation | 1049C-55 | LOCKHEED Models 649, 749, 1049-54, and 1049C Aircraft |
| aircraft | Lockheed Aircraft Corporation | 649-79 | LOCKHEED Models 649, 749, 1049-54, and 1049C Aircraft |
| aircraft | Lockheed Aircraft Corporation | 649A-79 | LOCKHEED Models 649, 749, 1049-54, and 1049C Aircraft |
| aircraft | Lockheed Aircraft Corporation | 749-79 | LOCKHEED Models 649, 749, 1049-54, and 1049C Aircraft |
| aircraft | Lockheed Aircraft Corporation | 749A-79 | LOCKHEED Models 649, 749, 1049-54, and 1049C Aircraft |
Unsafe Condition
Cracks in the fillet radius of attach flanges of the forward passenger door latch brackets.
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Required Actions
Inspect the door latch brackets using dye penetrant method at specified intervals, replace cracked brackets with new or improved parts, and check door rigging and safety bar/hooks. Inspections must be repeated every 1,000 hours of service time unless improved assemblies are installed.
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Compliance Time
Within the next 200 hours of service time and at each succeeding 1,000 hours of service time.
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Affected Aircraft
Lockheed Models 649 and 749 Aircraft with specified serial numbers (2518-2524, 2529-2535, 2548, 2549, 2554-2556, 2610, 2611, 2614-2618, 2642, 2653, 2659, 2660, 2662-2673), Model 1049-54 Serial Numbers 4001-4024, and Model 1049C Serial Numbers 4523-4538.
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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