@genista said in Topics not covered in the manual:
Thanks a lot for sharing your answers !
If I may ask, I was wondering the following:
What is the technical reason behind the FCOM requirement to turn on ENG anti ice prior to engine start ? And why do we have to turn off the packs for startup despite starters being electrical ?
Is there any situation where the cabin/flight compartment fans would be turned off ?
ENG Anti-Ice is on during start for stall/surge protection. They're switched off after each start. We switch them back on when we shut down.
The Packs and APU air are switched off prior to start to reduce the overall load on the APU. When you're out in the sticks and the APU fails during a start, you've got problems...
The Cabin Air is generally left on 100% of the time. This may vary between operators. The Flight Deck Air is generally on when it's a hot day. But it's annoyingly noisy!