Originally Posted by
PENKO
Because you will be as good as stuck on the taxiway. We don’t start the APU either on the NEO’s and modified older models. That’s the difference between SETWA and OETA. But the APU needs to be serviceable for both.
12 years on the bus. Except for a few months when SETWA was being worked on, always (with the exception for some tight locations or steeper taxiways) single engine taxi, inbound and outbound, APU working or not. Nothing in the APU MEL for either CEO or NEO forbidding it. Risks/Chances of the single engine failing with the APU deferred, and problems associated with that failure (needing a tow, that is pretty much it) are apparently low enough (in the time I worked there, more than 5 million taxi movements without that one engine failing).