As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT AVIONICS DOOR INDICATES OPEN IN FLIGHT AIR RETURN (ECAM DOOR PAGE INDICATIONS AVIONICS COMPARTMENT ACCESS DOOR). PERFORM OPERATIONAL TEST OF WARNING SYSTEM AVIONIC COMPARTMENT DOOR FOUND DOOR OK. OPERATIONS TEST OK FOR SERVICE. TIS ACTION CLEAR DMI 2541141-1 PLACARD REMOVE.