AD 2010-20-08

Recurring final rule
Data completeness: 70%

Airworthiness Directives; The Boeing Company Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747-400D, 747-400F, and 747SR Series Airplanes

AD Number
2010-20-08
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2009-1069
FR Citation
75 FR 61337

Applicability

TypeManufacturerModelDetails
aircraft Boeing Company Model 747-100 Airworthiness Directives; The Boeing Company Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747-400D, 747-400F, and 747SR Series Airplanes

Unsafe Condition

Cracking of the web, strap, inner chords, and inner chord angle of the forward edge frame of the number 5 main entry door cutouts, and cracking of repairs, which could cause damage to the adjacent body structure and result in depressurization of the airplane in flight.

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

Required Actions

Expand the inspection areas to include the frame segment between stringers 16 and 23. Reinstate repetitive inspections for certain airplanes. Perform repetitive inspections for cracking of repairs.

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

Compliance Time

Within 50 flight hours after the effective date of this AD.

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

Affected Aircraft

The Boeing Company Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747-400D, 747-400F, and 747SR series airplanes (line numbers 1 through 1419 inclusive), excluding Large Cargo Freighters (LCFs).

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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View Official Source ↗ Find More ADs for Boeing Company Model 747-100

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