ATR air conditioning system inaccuracies

ISSUE DESCRIPTION

  • When selecting RECIRC FAN 1(2) OFF, the white OFF label should appear, not amber FAULT.
  • Pack flow HIGH, when selected, should always illuminate a blue HIGH, no matter if the the engines are running, packs are available or not etc. It merely indicates the switch is in the HIGH position (similar logic to EXT PWR and TRU blue ON lights).
  • Temperature mode is reversed, with AUTO selected it shows MAN on the CABIN SD page and vice versa.

FREQUENCY OF ISSUE

Always.

REPRODUCTION STEPS

With engines off, select RECIRC FAN OFF and observe amber FAULT instead of white OFF

Select pack flow HIGH and observe no blue HIGH

Open the cabin SD page and observe blue MAN labels with switch in AUTO and vice versa

YOUR SETTINGS

Not relevant.

MEDIA

TEMP control switches in AUTO (MAN in blue on CABIN SD):

Temperature control MAN selected (AUTO in green on CABIN SD):

Can confirm same behavior.