AD 66-13-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Learjet Inc. | 23 | Airworthiness Directives; LEARJET Models 23 and 24 Airplanes |
| aircraft | Learjet Inc. | 24 | Airworthiness Directives; LEARJET Models 23 and 24 Airplanes |
Unsafe Condition
Failure of the pressure control static air system could result in improper cabin pressurization control, leading to loss of cabin pressure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Modify the pressure control static air system in accordance with Lear Service Kit SK23/24-230 or an equivalent approved by the Chief, Engineering and Manufacturing Branch, FAA Central Region.
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Compliance Time
before further flight
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Affected Aircraft
Learjet Inc. Models 23 and 24 Airplanes
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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