As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED A LOW SPEED REJ TAKEOFF LESS THAN 20KTS DUE TO DOOR AFT CARGO ECAM MSG APPEARED JUST AT POWER SETTING. FAULT CLEARED AFTER ACFT RETURNED TO GATE CREW REPORTED LESS THAN 20KTS REJ TAKEOFF. FAULT WAS ALREADY CLEARED AT ARRIVAL TO GATE. RAMP CYCLED AFT CARGO DOOR TWICE INDICATION IS NORMAL AND NO FURTHER FUALTS NOTED. NO FURTHER MAINT ACTION REQUIRED REF AMM 05-51-16-200-001A