AD 2010-26-10

Recurring final rule
Data completeness: 70%

Airworthiness Directives; The Boeing Company Model 747-200C, -200F, -400, -400D, and -400F Series Airplanes

AD Number
2010-26-10
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2010-0232
FR Citation
75 FR 81427

Applicability

TypeManufacturerModelDetails
aircraft Boeing Company Model 747-200C Airworthiness Directives; The Boeing Company Model 747-200C, -200F, -400, -400D, and -400F Series Airplanes

Unsafe Condition

Fatigue cracking in certain lap joints of the fuselage skin in sections 41, 42, and 46, which could result in rapid depressurization of the airplane.

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

Required Actions

Expand the inspection area for cracks in the overlapping (upper) skin of the upper fastener row of the lap joints. Modify certain lap joints and perform post-repair inspections of the lap joints. Accomplishing the modification would end the repetitive inspections required by the existing AD for the length of lap joint that is modified.

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

Compliance Time

Within 30,000 total flight cycles.

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

Affected Aircraft

The Boeing Company Model 747-200C, -200F, -400, -400D, and -400F 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

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