AD 47-49-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Lockheed Aircraft Corporation | 49-46 | LOCKHEED Models 49, 649, and 749 |
| aircraft | Lockheed Aircraft Corporation | 649-79 | LOCKHEED Models 49, 649, and 749 |
| aircraft | Lockheed Aircraft Corporation | 749-79 | LOCKHEED Models 49, 649, and 749 |
Unsafe Condition
Wing attaching pins at Station 80 may work upward through the fittings, resulting in insufficient protrusion of the lower chamfered portion.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
At each engine change period, inspect the wing attaching pins at Station 80. If any pin has worked up until only the lower chamfered portion protrudes, replace the Station 80 cover strip with a new 0.064 24ST alclad strip. After replacement, periodic inspection of that joint may be discontinued.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
At each engine change period
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Affected Aircraft
Lockheed Aircraft Corporation Models 49 (serials up to and including 2088), 649, and 749 (serials 2501 through 2513, inclusive)
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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