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PIPER AIRCRAFT, INC.
PA-46-500TP, MALIBU MERIDIAN
MAINTENANCE MANUAL
GENERAL
The PT6A-42A engine contains three separate air systems. One provides air for bearing compartment
sealing, one provides cooling air, and the last provides air for the compressor bleed valves and airframe
environmental control.
Refer to Chapter 75 of Pratt & Whitney Canada Maintenance Manual - Turboprop Gas Turbine Engine
Model(s) PT6A-38/-40/-41/-42/-42A - Part No. 3021442 for information on servicing these systems.
See also Chapter 21, in this manual, for information on airframe environmental control.
75-00-00
PAGE 1
7H1
Apr 15/07
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Troubleshooting
