"Mitty" wrote in message
...

Au contraire. With a 7700 squawk then if the emergency situation wasn't
mentioned in the handoff (which it possibly wasn't) then the next
controller would still have known something was seriously wrong.

(Now possibly if AA had squawked 7700 he would have been asked to switch
off that code at some point, but we don't even know from the video whether
he tried it.)


Code 7700 is assigned when the pilot declares an emergency and the aircraft
is not radar identified. Switching to 7700 when you're already radar
identified accomplishes nothing, with the possible exception of causing
confusion.