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Old 7th Nov 2013, 19:56
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Dennis Kenyon
 
Join Date: Nov 2002
Location: Ross-on-Wye
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Allison 250 Turbo-Shaft.

Hi Pruners ... I've been asked to produce a 'risk assessment' for an MD 500 operation which requires short periods of hovering at lowish altitude. (say circa 175 feet AGL) I've trawled the RR and Allison internet sites, but cannot come up with information providing historic shut down/failure rates for the Allison C-20/C-20B series engines.

Any whizz kids on here who can help? Thanks in advance lads. Dennis Kenyon.
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