AD 2018-19-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Learjet | Various | Airworthiness Directives; Learjet, Inc. Airplanes |
Unsafe Condition
fatigue cracks initiating in the flap support structure due to repetitive flap loads, which has caused flap nose roller support bracket failure
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
replacement of the flap nose roller fitting, nose roller support bracket, and adjacent rib support structure with improved components
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Learjet, Inc. Models 28, 29, 31, 31A, 35, 35A, 36, 36A, 55, 55B, 55C, and 60 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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