As
No Speed Restriction says, you need to know what the tail-wind component is before starting H mode. Otherwise, you could quickly get a nasty surprise:
Master Warning - NAC OVHT. Which could be solved by either:
- releasing the prop brake (of course not an option if ground ops are ongoing)
- shutting down the engine (favourite option, unless NAC OVHT happens during pushback)
It's a trick commonly played on unsuspecting crews by TREs at the sim...
If the ATIS reports a tail-wind component, the start procedure is different:
1/ Request start
2/ Start no.1 engine
3/ Ask ground crew to disconnect GPU
4/ Release prop brake
5/ Request pushback (if needed)
6/ Start no.2 during pushback
Cheers
