Summary
We are adopting a new airworthiness directive (AD) for certain Boeing Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747- 200F, 747-300, 747-400, 747SR, and 747SP series airplanes. This AD requires inspecting for skin cracks at the shear tie end fastener locations of the fuselage frames, and repairing cracks if necessary. This AD results from a wide-spread fatigue damage assessment of Model 747 airplanes. We are issuing this AD to detect and correct cracks in the fuselage skin that can propagate and grow, resulting in a loss of structural integrity and a sudden decompression of the airplane during flight.
Directive Details
AD Number
FAA-2008-1072
Document Number
E9-4973
Type
Rule
Publication Date
March 16, 2009
Effective Date
April 20, 2009
Affected Manufacturer
Boeing Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747SR, and 747SP Series
Criticality
routine
Emergency
No
Docket ID
Docket No. FAA-2008-1072
Topics
Official Documents
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