AD 66-05-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Lockheed Martin Corporation | 188A | LOCKHEED Models 188A and 188C Series Airplanes |
| aircraft | Lockheed Martin Corporation | 188C | LOCKHEED Models 188A and 188C Series Airplanes |
Unsafe Condition
Fatigue cracks emanating from the barrel-nut access holes of the outer wing front cap fittings at the Wing Station 65 joint.
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Required Actions
Inspect lower cap fittings (P/N 807352-1 and -2) visually for cracks within 1,100 hours' time in service after the effective date. Subsequent inspections using dye penetrant or FAA-approved equivalent must check lower and upper cap fittings (P/N 807352-1/-2 and 807354-1/-2) for cracks and burrs within 3,000 hours after the first inspection. Replace cracked fittings with new deburred ones before flight, allowing ferry flights under FAR 21.197. Deburr found burrs per Lockheed SB 88/SB-633B before flight.
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Compliance Time
Compliance required as indicated, unless already accomplished.
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Affected Aircraft
Lockheed Models 188A and 188C Series Airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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