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Airworthiness Directives (ADs)

90-747-364

The aircraft owner or operator shall comply with Airworthiness Directives issued by the CAA or the aeronautics authority of the State of Design (SoD) of the aviation products, appliances and parts, and take all necessary actions thereto.

Issue Date
2001/08/02
Applicability
747-100 and -200
Model Number
747
CAA AD Number
90-747-364
Aeronautics Authority of Original AD
FAA
Original AD Number
2001-14-22
Effective Date
Subject
To find and fix fatigue cracks of the station 800 frame assembly that could extend and fully sever the frame, which could result in development of skin cracks that could lead to rapid depressurization of the airplane.
Reference Publications (Revision/ATA/SB)
ASB 747-53A2451
Remarks
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