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Thread: GE90 Engine Noise During Start
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Old 30th June 2011 | 23:34
  #6 (permalink)  
grounded27
 
Joined: Sep 2010
Posts: 1,339
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From: earth
The "cool down period" is detrimental to this motor, shaft warping can cause major problems. The 115/derated110 have huge fan blades, suspect this is the source.
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