AD 47-49-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Lockheed Aircraft Corporation | 49-46 | LOCKHEED Model 49 |
Unsafe Condition
The NAS 58A65 bolt used to connect the two halves of each MLG upper drag link assembly may fail due to insufficient strength.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace the NAS 58A65 bolt with a 5/8-inch diameter high strength bolt (LAC P/N 297902) and reduce MLG shock strut inflation pressures to achieve a static extension of 2 inches at maximum landing weight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
prior to February 1, 1948
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Lockheed Aircraft Corporation Model 49 serials up to and including 2088, unless equipped with MLG Drag Strut Dampers.
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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