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Thread: Lack of lubrication certification for helicopter gearboxes
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Old 31st Jul 2017, 02:12
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LRP
 
Join Date: Mar 2011
Location: Arizona
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Originally Posted by JohnDixson
Megan, the story re the machine ( 1965 or 66 ) was that it was a few minutes. I found the following link for a later incident, which quoted 2 minutes:

https://www.vhpa.org/KIA/incident/700217101ACD.HTM
A friend of mine was operating a restricted category UH-1H at the Grand Canyon about 6 years ago. Lost transmission oil pressure at about 500 agl, the rotor stopped turning at about 10 ft., he was seriously injured as a result. Don't know how long it ran dry, but it wasn't very long.

NTSB said it was a transmission failure from a lack of lubrication.
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