As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FWD CARGO DOOR WILL NOT OPEN ELECTRICALLY. CARGO DOOR CONTROL AFT CIRCUIT BREAKER KEEPS TRIPPING. FOUND EXT POWER TRU [A] POS AND NEG WIRES REVERSED, WIRES 005,006,REF WDM 24-54-71. REPLACED LCD WITH NEW TRU REF MM 24-41-05 AND WDM 24-54-71. ALL ASSOCIATED CARGO DOORS AND LOADING SYSTEMS DISCREPANCIES WERE CORRECTED. CARGO DOOR ELECT OP CHECKED OK REF MM 52-34-00.