Thats bollocks CDN. There is a need for a discussion because certain parts of the world do it one way and other parts do it another way. Just cos ICAO have their tea parties in Montreal doesn't mean they are always right.
All I get in response to my questions as to why a requirement to get an aircraft above a crossing aircraft at FL150 should be cancelled by a revised final cleared level of FL350 to FL370 is that "That is just the way it is".
My answer is no, that is not the way it is everywhere, and IMHO it shouldn't be that way anywhere cos it is plain stupid and makes no sense.
Bottom line, a responsible Air Navigation Service provider will ensure that an ATC requirement is cancelled specifically rather than cancelled by default due to a revised clearance.
Last edited by AirNoServicesAustralia; 25th October 2007 at 11:36.