AD Amdt-39-10341

Recurring final rule
Data completeness: 70%

Airworthiness Directives; Boeing Model 727 Series Airplanes

AD Number
Amdt-39-10341
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. 96-NM-78-AD
FR Citation
63 FR 7693

Applicability

TypeManufacturerModelDetails
aircraft Boeing 727 Airworthiness Directives; Boeing Model 727 Series Airplanes

Unsafe Condition

Installation of manual extension gearbox assemblies with incorrect housings could reduce structural integrity and result in inability to lock the MLG in a down position during landing.

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

Required Actions

Perform a one-time visual inspection of the manual extension gearbox assembly of the main landing gear to detect incorrect gearbox housings; conduct repetitive dye penetrant inspections of the housings to detect cracking; replace incorrect housings with correct ones.

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

Boeing Model 727 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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