AD 66-11-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Lockheed Martin Corporation | 188A | LOCKHEED Model 188A and 188C Series Airplanes |
| aircraft | Lockheed Martin Corporation | 188C | LOCKHEED Model 188A and 188C Series Airplanes |
Unsafe Condition
Spanwise cracks in the wing lower surface aft of the main gear fulcrum fitting and chordwise cracks in the wing lower surface plank.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect for cracks in the wing plank riser radius and internal plank area surrounding the bulkhead angle using ultrasonic or dye penetrant methods. Repair cracks before further flight per specified drawings and service bulletins. Discontinue inspections if no cracks found and modifications are made.
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Compliance Time
Within the next 700 landings after the effective date of this AD, unless already accomplished within the last 700 landings before the effective date, and at intervals not to exceed 1,400 landings from the last inspection until repaired or modified.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Lockheed Model 188A and 188C Series Airplanes except those modified per Lockheed Drawings 841318A, 841318B, or equivalent approved by FAA.
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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