Airworthiness Directives; Boeing Model 747-100, -200B, -200F, -200C, -100B, -300, -100B SUD, -400, -400D, -400F, and 747SR Series Airplanes
airworthiness · Rule · Final rule. · Published 2005-01-07 · Effective 2005-02-11 · 70 FR 1340
Document
Document number
05-160
Federal Register citation
70 FR 1340
Type
Rule
Action
Final rule.
Category
airworthiness
Publication date
2005-01-07
Effective date
2005-02-11
FAA docket
Docket No. FAA-2004-18601
Abstract
The FAA is adopting a new airworthiness directive (AD) for certain Boeing Model 747 series airplanes. This AD requires a one-time inspection for discrepancies of the frame web and inner chords on the forward edge frame of the number 5 main entry door cutout, and related corrective action. This AD is prompted by a report of cracking of the frame web and inner chords on the forward edge frame of the number 5 main entry door. We are issuing this AD to find and fix discrepancies of the frame web and inner chords, which could result in cracking, subsequent severing of the frame, and consequent rapid depressurization of the airplane.