AD Amdt-39-11297
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Lockheed | L-14 and L-18 | Airworthiness Directives; Lockheed Model L-14 and L-18 Series Airplanes |
Unsafe Condition
Reports of inflight incidents and an accident in icing conditions where the airframe pneumatic deicing boots were not activated, leading to reduced controllability due to ice accumulation.
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Required Actions
Revise the Airplane Flight Manual (AFM) to include requirements for activation of the airframe pneumatic deicing boots at the first signs of ice accumulation.
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Compliance Time
Before further flight
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Affected Aircraft
Lockheed Model L-14 and L-18 series airplanes.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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