737-400 Flight deck cold (in the air only)

This is a public forum for 737 maintenance related questions, requests and experience exchange discussions for every Boeing 737.

737-400 Flight deck cold (in the air only)

Postby alangy34 » 02 Apr 2022, 12:18

Temp control normal while on the ground, no failures on PZTC, filter and sensor in FD check ok. When in flight, flight deck gets very cold. Unable to reproduce any faults on the ground. Any advice?
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