Estimate for airfield boundary
Can anyone help with this ATPL A comms theory question?
"How much notice must a pilot give ATC when passing his estimate for the airfield boundary?"
I've been through Annex 10 Vol 2, Doc 4444 and the Manual of Air Traffic.
All I've found so far is that the controller needs to give 5 minutes notice to the next ATCU.
Any input wold be gratefully received particularly if you can quote a reference.