AD 62-26-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Lockheed Martin Corporation | 188A | LOCKHEED Models 188A and 188C Aircraft |
| aircraft | Lockheed Martin Corporation | 188C | LOCKHEED Models 188A and 188C Aircraft |
Unsafe Condition
Cracks in closed or open section type elevator balance weight arms could cause jamming of the elevator or adversely affect protection against flutter.
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Required Actions
Inspect closed-type arms within 100 hours' time in service after the effective date and every 175 hours thereafter. Inspect open-type arms within 100 hours' time in service and every 350 hours thereafter. Replace cracked arms with uncracked or FAA-approved equivalents. Rework uncracked arms within 350 hours' time in service. Discontinue inspections after modifying the elevator assembly per specified service bulletins or verifying no interference.
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Compliance Time
Within the next 100 hours' time in service following the effective date of this AD
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Affected Aircraft
Lockheed Model 188A and 188C aircraft
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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