AD 74-12-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Lockheed Martin Corporation | 382 | LOCKHEED Model 382 Series Airplanes |
| aircraft | Lockheed Martin Corporation | 382B | LOCKHEED Model 382 Series Airplanes |
| aircraft | Lockheed Martin Corporation | 382E | LOCKHEED Model 382 Series Airplanes |
| aircraft | Lockheed Martin Corporation | 382F | LOCKHEED Model 382 Series Airplanes |
| aircraft | Lockheed Martin Corporation | 382G | LOCKHEED Model 382 Series Airplanes |
Unsafe Condition
Cracks in the outer wing lower forward beam cap, web, and skin in the area extending from outer wing stations 144 to 165 and 195 to 214, both left and right.
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Required Actions
Inspect outer wing lower forward beam cap, web, and skin for cracks as per SMP 515-A, Card SP-75. Repair beam cap per Service Bulletin A382-169, Revision 7, and beam web per SMP 583. Install preventive modification per Service Bulletin 382-152, Revision 2 before 30,000 flight hours. Perform recurring inspections at specified intervals.
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Compliance Time
Within the next 50 hours time in service (for airplanes with ≥5000 hours) or before 5050 hours total time in service (for <5000 hours), and thereafter every 1000 hours time in service. Preventive modification must be installed before 30,000 flight hours.
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Affected Aircraft
Lockheed Model 382 series airplanes, Serial Numbers 3946 and 4101 through 4541.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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