1992 FIN – Boeing to Replace Fuse Pins With New Stainless Design
December 16, 1992 FIN – Beginning in 1993 Boeing Co. plans to use newly designed airplane fuse pins made from stainless steel in place of pins made of high-carbon steel as devices that hold jet engines on wings.
Boeing indicated the new pins would be used in new jet aircraft and probably would replace pins currently in use.
Three new fuse pin designs are reportedly being tested and all use stainless steel. However, no information has been given about the designs, the grades of stainless steel being tested or the identities of the pin manufacturers.
Fuse pins hold a jet engine and strut to a plane’s wing and faulty struts may have contributed to an October 4 crash of an El Al cargo jet in Amsterdam that killed four people on the plane and about 50 people on the ground. However, it has not been proven in any investigation that the fuse pins were linked to the crash.
Boeing has advised airlines to perform corrosion checks on fuse pins on about 700 model 747 jumbo jets. A jumbo 747 has 4 fuse pins on each of its four engines. The advisory applies to planes that have been through more than 3,000 landings or that are more than three years old. ©1992/2010 Fastener Industry News
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