AD 2020-11-04

final rule
Data completeness: 80%

Airworthiness Directives; Learjet Inc. Airplanes

AD Number
2020-11-04
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2019-0204
FR Citation
85 FR 30837

Applicability

TypeManufacturerModelDetails
aircraft Learjet Inc Airworthiness Directives; Learjet Inc. Airplanes

Unsafe Condition

The acceleration with reverse thrust commanded occurred when the thrust reverser doors were in the stowed position instead of the deployed position.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Installing a thrust reverser (T/R) Voice Command Warning System (VCWS) to alert the crew of a T/R malfunction. The FAA is issuing this AD to mitigate failure of the engine thrust reverser system.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

Within 1,200 hours time-in-service or 48 months after the effective date of this AD.

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

Learjet Inc. Model 60 airplanes, serial numbers 60-001 through 60-258.

AI-generated summary from the source AD text. Verify against the official source before acting.

Source: Official FAA Source ↗

Retrieved: Apr 4, 2026

Rights: U.S. Government Public Domain

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