AD Amdt-39-10954

Recurring final rule
Data completeness: 70%

Airworthiness Directives; Boeing Model 747 Series Airplanes

AD Number
Amdt-39-10954
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. 97-NM-59-AD
FR Citation
63 FR 70316

Applicability

TypeManufacturerModelDetails
aircraft Boeing 747 Airworthiness Directives; Boeing Model 747 Series Airplanes

Unsafe Condition

Stress corrosion cracking was found on certain stop support fittings of the main entry doors, which could lead to failure of the stop support fittings, loss of a main entry door, and consequent rapid decompression of the airplane.

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

Required Actions

Perform a one-time inspection to determine the material type of the stop support fittings of the main entry doors. Conduct repetitive visual inspections to detect cracks of certain stop support fittings of the main entry doors. Replace any cracked stop support fitting with a new stop support fitting.

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

Compliance Time

Within 18 months after the effective date of the AD.

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

Affected Aircraft

Boeing Model 747 series airplanes, as specified in the referenced service bulletin.

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

This site is not affiliated with or endorsed by the FAA. Always verify with official sources.