AD 69-08-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Lockheed Martin Corporation | 188A | LOCKHEED Model L-188 Series Airplanes |
| aircraft | Lockheed Martin Corporation | 188C | LOCKHEED Model L-188 Series Airplanes |
Unsafe Condition
Cracks in the lower wing plank surfaces and areas around fasteners, including planks one through eight between W.S. 157 and W.S. 219.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Visually inspect lower wing plank surfaces and areas around fasteners per FAA-approved Lockheed Service Bulletin 88/SB-669. Repair cracks before further flight as per the service bulletin or FAA approval. Report inspection results including crack details, aircraft serial number, and accumulated hours' time in service.
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Compliance Time
within the next 400 hours' time in service after the effective date of this AD
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Affected Aircraft
Lockheed Model L-188 Series airplanes (188A, 188C), all serial numbers.
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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