Originally Posted by ENH017

The book only mentions the procedure for starting at the gate with APU inop. It does not mention how the shutdown procedure would go in that specific situation.

There's only 2 points that I could find that are relevant:

1. Single engine taxi with APU inop is prohibited
2. 2 minute cool down is required before engine shutdown

I would not call pulling into the gate with both engines running while waiting for GPU and/or cool down "normal", due to common sense hopefully, but the book does not specifically forbid us from doing so.