Hi, new on type myself but this is what I understand:
2. After pressing TOGA wing anti ice will be inhibited for 10 minutes
3. It probably has to do with the aircraftīs performance. If I can compare to the 737, though it does not inhibit wing anti-ice after TO, it does trip off automatically after setting TO thrust if previously selected on.
On a side note, in the FCOM itīs written that as soon as icing is detected engine anti-ice will come on. However for the wing anti-ice to come on, it needs to detect icing for multiple cycles. So it seems Boeing believe it is not that critical to have wing anti-ice on immediately after TO.
4. you donīt take action based solely on a low engine oil quantity. It should be combined with high oil temp or low oil pressure. For example, there is no low engine oil qty checklist on the 737.
6. FCOM 8.20.4 "on the ground with both engines off an APU fire signal from either APU fire detector loop causus APU shutdown and extinguisher bottle discharge"
If anyone with more experience and knowledge on the B777 has better answers, please correct me.
Cheers,-