Originally Posted by
dera
Might want to recheck that before shouting that too loud.
AIM 5-3-3
Additional Reports- The following reports should be made to ATC or FSS facilities without a specific ATC request:
- At all times.
- When vacating any previously assigned altitude or flight level for a newly assigned altitude or flight level.
very few people do this and a personal friend, a FAA controller-supervisor at a major Center said these are unofficially very annoying and radio congestive