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| | Boeing Model 747-100, -100B, 100B SUD, -200B, -200C, |
 | | We are issuing this AD to detect and correct fatigue cracks in the body frames, skin and other internal structure in fuselage section 41, which could lead to rapid decompression and loss of the structural integrity of the airplane. |
 | | The service bulletin specifies that the fuselage section 41 inspections are to be done in stages at 8,000, 10,000, 13,000, 16,000, and 19,000 total flight cycles (referred to as "Flight Limits" in the service bulletin). |
 | | We are issuing this rulemaking under the authority described in subtitle VII, part A, subpart III, section 44701, "General requirements." Under that section, Congress charges the FAA with promoting safe flight of civil aircraft in air commerce by prescribing regulations for practices, methods, and procedures the Administrator finds necessary for safety in air commerce. |
| www.airweb.faa.gov /Regulatory_and_Guidance_Library/rgAD.nsf/0/16621DCA69892C2886256FE0005BED05?OpenDocument (4399 words) |
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