What was found
JUST BEFORE TAKEOFF, MAIN DECK CARGO SMOKE (ECAM). WORKED QRH PROCEDURE AND THEN HAD ECAM, CARGO LOOP FAULT FOR MID-DECK. WHILE RUNNING CHECKLIST FOR CARGO LOOP FAULT, BOTH A AND B ON AFT DECK, MAIN DECK CARGO SMOKE ILLUMINATED AND REMAINED ON. JUST PRIOR TO EVACUATING ACFT VIA "ON GRD EMERG EVAC" PROC, ALL FIRE INDICATIONS CLEARED. T/S IN PROGRESS. UPON BLOCK-IN NO ALERTS WERE NOTED ON MDC SMOKE DET PNL. NO FAULT BULB NOTED ON SMOKE DETECTION CTRLS. OFFLOADED ALL FREIGHTS AND CARRIED OUT INSPECTION ON ALL CARGO CMPT SMOKE DETECTORS. NO DEFECTS NOTED. RELOADED FREIGHT ONTO A/C AND WITH APU BLEED ON, NO ALERTS NOTED (2HRS). RAN BOTH ENGINES AT IDLE POWER PER A310 JRH FOR 20 MINUTES. NO ABNORMALITIES NOTED. UPDATED MOCC WITH FINDINGS. ACFT OK TO CONTINUE. TSM REF :-26-19-00 AMM REF :- 26-19-00-5.