Originally Posted by
HS125
I recon whats probably happened is that a controller has anticipated that your intended track will result in a nusience RA and, having been previously able to confirm your level from the mode C has asked you to turn it off in order to offer you both the most expedient handling....
Can ATC folks provide some insight on what they're allowed to request? Somehow, I just can't see their OPS Manual, or whatever, suggesting or recommending or allowing controllers to instruct pilots to turn off mode C unless malfunctionning. Although nothing against advising of possible TCAS events likely, I presume.
Having flown in NY area, ifr, I've got preventive RA's for vfr traffic 500 feet off my altitude. I just can't think that ATC would tell me or the other aircraft to turn of mode C in this case. I'd want it on!!