Originally Posted by rmac
If transponders are an important part of the safety chain in airspace when related to separation, why not make the warning of a transponder failure/disconnect similar to that of an autopilot failure/disconnect ?
I was about to say that such options are being seriously considered as a consequence of the NTSB recommendation, but then I actually looked it up. NTSB A-07-37 recommends to make pilots aware of loss-of-transponder annunciations, but doesn't go as far as to suggest modifying the warning.
The recommendations can be found at
http://www.ntsb.gov/recs/letters/2007/A07_35_37.pdf
and the
EUROCAE WG49 Working Paper (Aug 2007) at
http://adsb.tc.faa.gov/SC209_Meeting...%2008%2007.pdf
PBL