When flaps are in the land position and boundary layer control is active, is
there an increase in EGT that is sufficient to register on the cockpit
gauge?
If so, does the pilot look for the EGT rise to ensure the system is working?
If not, is there an indication that the system is inoperative, is the
aircrafts handling characteristics on approach indicative of system failure,
or is it fail safe?

Scet