[BITList] A380 Wing Cracks

[HUGH]

Interference fits are mentioned as a possible cause for some of the 
cracking.  The journals and crankpins of most big marine engines ever built 
were (if I recall correctly) 1/300 of the diameter bigger than the 
corresponding hole in the crankweb, so Interference with a capital I. The 
webs were heated and the pins dropped in then allowed to cool. I've never 
heard of a crankshaft failure through cracking from that source. Possibly 
too much emphasis on saving weight and material in aircraft.

Hugh.