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Old 12th Aug 2007, 11:01
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LEM
 
Join Date: May 2003
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HPTCC: High Pressure Turbine Clearance Control
CFM56 (737 and A320 at least) have High Pressure Turbine Clearance Control.

This adjusts the size of the cowling to perfectly match with turbine blades, if I understand correctly.

How does this work exactly?

More: MEL mentions High Pressure Turbine Clearance Control Timer(s).

What's that?
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