Imagine the following scenarios:
I had completed my push back and I am ready to taxi. So, I requested a taxi to runway 25R and the ATC cleared me to do so. Then immediately, the ATC went offline and I was switched to Unicom.
(1)Do I need to announce taxing to runway 25R again on Unicom?
(2) If another ATC came online, do I need to request taxi again after the first ATC has already cleared me?
This is also to other situations EG: go arounds, take off, cross runway etc.
Scenario 2: I was ready to take off for a bit of pattern work. After I have lifted off,
(1)Do need to announce “inbound for RWY XXX” on Unicom again or just announce my position (downwind, base or final)?
Thanks for your answers!