Airworthiness Directives; Boeing Model 747-200F, 747-200C, 747-400, 747-400D, and 747-400F Series Airplanes
airworthiness · Rule · Final rule. · Published 2006-03-02 · Effective 2006-04-06 · 71 FR 10605
Document
Document number
06-1828
Federal Register citation
71 FR 10605
Type
Rule
Action
Final rule.
Category
airworthiness
Publication date
2006-03-02
Effective date
2006-04-06
FAA docket
Docket No. FAA-2005-22526
Abstract
The FAA is adopting a new airworthiness directive (AD) for all Boeing Model 747-200F, 747-200C, 747-400, 747-400D, and 747-400F series airplanes. This AD requires repetitive inspections for cracking of certain fuselage internal structure, and repair if necessary. This AD results from fatigue tests and analysis that identified areas of the fuselage where fatigue cracks can occur. We are issuing this AD to prevent loss of the structural integrity of the fuselage, which could result in rapid depressurization of the airplane.