Originally Posted by
Locked door
IIRC there are a couple of MSN’s where APU start is not recommended after loss of AC power (inc emer elec config). They are few and far between, I think we have one of them. That might be part of his confusion, or it might not.
All from memory, please be gentle.
LD
Not recommended doesn’t mean not allowed.
For this particular serial number, you have one additional reason to start the APU as soon as possible, in order to avoid the “not recommended” situation in case of further degradation.
Usually companies train for the majority of the fleet and they point out the differences/exceptions.
With the same logic, the company should train and take advantage of the “weakest” MSN of the entire fleet.
As an other member previously noticed :
Will the TRE, in a real aircraft, disregard the “APU(if available)… Start” part of the ELEC emer configuration, because the procedure of an other MSN doesn’t recommend the action ?