AD Amdt-39-11492

final rule
Data completeness: 70%

Airworthiness Directives; British Aerospace Model BAC 1-11 200 and 400 Series Airplanes

AD Number
Amdt-39-11492
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. 99-NM-31-AD
FR Citation
65 FR 207

Applicability

TypeManufacturerModelDetails
aircraft British Aerospace Model BAC 1-11 200 and 400 Series Airworthiness Directives; British Aerospace Model BAC 1-11 200 and 400 Series Airplanes

Unsafe Condition

Uncommanded deployment of the thrust reverser system in flight or on the ground, which could result in reduced controllability of the airplane.

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

Required Actions

Replace the thrust reverser control unit selector valve with a new or modified valve. Inspect for proper rigging of the thrust reverser cable drums and thrust reverser control unit selector valve detent, and perform corrective actions if necessary. Revise the Airplane Flight Manual to include procedures for addressing uncontrolled operation of the thrust reverser system.

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

All British Aerospace Model BAC 1-11 200 and 400 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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