Still not clear. MEL:
30-80-01 Ice Detection System
30-80-01-01 Advisory. CAT"D"
30-80-01 Ice Detection System
30-80-01-02 Primary. CAT "C"
May be inoperative provided alternate procedures are established and used.
OPERATIONS (O)
Pilot must manually operate anti-ice system when in icing conditions.
NOTE: The ICE DETECTORS message may display during takeoff if the
primary ice detection system is operated in the manual mode.
Any reference to MM?
Thanks