As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN FLIGHT AVIONICS DOOR OPEN MASTER CAUTION ON ALARM SOUND CONTINOUSLY, LIMITED THE AIRCRAFT TO 10.000 FT. VERIFIED AVIONICS DOOR ON ARRIVAL. FOUND CLOSED AND LOCKED. DOOR AVIONICS INDICATION DEFERRED INOP IAW MEL 52-70-01 CAT "C". COMPLIED WITH MAINT PROC.