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Aloha Airlines 243

Printed page label not indexed. PDF page 2.

those programs, the engineering airworthiness of the B-737 with particular emphasis on multiple site fatigue cracking of the fuselage lap joints, the human factors aspects of air carrier maintenance and inspection for the continuing airworthiness of transport category air
Open official document at PDF page 2NTSB AAR-89/03: Aloha Airlines flight 243, N73711

Aloha Airlines 243

Printed page v. PDF page 6.

certification, and continuing airworthiness of the B-737 with particular emphasis on multiple site fatigue cracking of the fuselage lap joints. 7) The human factors aspects of air carrier maintenance and inspection for the continuing airworthiness of transport category
Open official document at PDF page 6NTSB AAR-89/03: Aloha Airlines flight 243, N73711

Aloha Airlines 243

Printed page label not indexed. PDF page 44.

maintenance planning; however, he had not received any specific training in corrosion control, multiple site fatigue damage, or management of high time "lead the fleet" aging aircraft. He stated that he was not aware of an FAA course devoted specifically
Open official document at PDF page 44NTSB AAR-89/03: Aloha Airlines flight 243, N73711

Aloha Airlines 243

Printed page label not indexed. PDF page 73.

the durability of the lap joint cold bond appears to be the governing factor producing multiple site fatigue cracking in the B-737 lap joints. The Safety Board believes that the Boeing fatigue tests of the fuselage to two lifetimes did
Open official document at PDF page 73NTSB AAR-89/03: Aloha Airlines flight 243, N73711

Aloha Airlines 243

Printed page 71. PDF page 77.

failure initiated in the lap joint along S-10L; the failure mechanism was a result of multiple site fatigue cracking of the skin adjacent to rivet holes along the lap joint upper rivet row and tear strap disbond which negated the
Open official document at PDF page 77NTSB AAR-89/03: Aloha Airlines flight 243, N73711

Aloha Airlines 243

Printed page label not indexed. PDF page 39.

During initial inspection after paint stripping, fatigue cracking was found visually at multiple rivet locations on the S-14R lap joint at BS 380 and numerous tearstrap disbonds and skin corrosion sites were apparent. All outstanding SB actions and terminating (permanent)
Open official document at PDF page 39NTSB AAR-89/03: Aloha Airlines flight 243, N73711