From a procedures point of view, I'm more interested in the bit about;
The displayed cleared flight level (CFL) differed from the level assigned to the B737 by the controller," the report said.
"That assigned level was being used for separation by another air traffic controller."
I'm trying to imagine the scenario they are describing here.
Are they saying different controllers were separating traffic on the basis of the CFL in the label not the AFL??
Sounds like it was only a matter of time before it went wrong.
