Re: FAA orders Boeing 737 engine checks

Date:         19 Jul 98 22:07:17 
From:         gfoley@freenet.columbus.oh.us (Gerard Foley)
Organization: The Greater Columbus FreeNet
References:   1
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Lee Spencer (fjfjlspencer@alaska.net) wrote:
<snip>

: CFM spokeswoman Pat Klaus said gearbox starter shafts from mid-1996
: until April this year had not been shotpeened, a manufacturing process
: that relieves stress and prevents metal fatigue.

Actually shotpeening imposes a stress which raises the endurance (fatigue)
strength of the metal.

No problem.

--
Gerry