AD 64-14-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Lockheed Martin Corporation | 188A | LOCKHEED Models 188A and 188C Series Aircraft |
| aircraft | Lockheed Martin Corporation | 188C | LOCKHEED Models 188A and 188C Series Aircraft |
Unsafe Condition
Fatigue cracks in the main landing gear actuator support fittings (Lockheed P/N 800618) could jam the main landing gear.
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Required Actions
Inspect the aft end of the main landing gear actuator support fittings for fatigue cracks in accordance with Lockheed 88 Alert Service Bulletin No. 599A, Section 2.A through 2.C or an FAA approved equivalent. Replace cracked fittings before further flight per Section 2.E(1) through 2.E(10) of 88/SB-599A and Section 2 of SB-538 or equivalent. Repair spar cap and plank cracks as per Lockheed Structural Repair Manual or equivalent before further flight, except for ferry flights under CAR 1.76.
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Compliance Time
Within 225 landings or 225 hours' time in service after the effective date (June 26, 1964), depending on whether operators maintain landing records. Inspections must occur at intervals not exceeding 1,000 landings or 1,000 hours' time in service. Adjusted intervals if replacement parts installed.
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Affected Aircraft
Lockheed Models 188A and 188C Series aircraft with Main Landing Gear Actuator Support Fitting P/N 800618 that has accumulated more than 5,000 hours' time in service.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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