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Old 3rd Jun 2008, 16:57
  #1255 (permalink)  
lomapaseo
 
Join Date: Mar 2002
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The Trent P2/T2 probe is electrically heated all the time the engine is running.
The Trent EAI only heats the nose cowl inlet lip and the air (HP 3) is cooled prior to entering the nose cowl, this air is then vented overboard.
Agree But the probe heat does fail from time to time,

I wonder if it is annuciated (recorded) when it does
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