What was found
FLT # 334 SFO-SFO, (ETOPS). " AFTER ENGINE START AND BEGINNING OF TAXI THE "AIR PACK 1 REGUL FAULT" ECAM MSG CAME ON FOLLOWED COMPUTER RESET PRODECURES WHICH DID NOT CLEAR MSG, JFK TECH OPS ADVICED TO RETURN TO GATE ( AIR COND PACK RAM AIR INLET FLAPS ).; RESET PACK 1 SYS AND CLEANED FLAP ACTUATOR 8HH CONNECTOR AND OPC OK REF AMM 21-61-51. GROUND VERIFICATION FOR ETOPS PERFORMED. MDDR CLR. MX 4 UPD. PLACARD REMOVED (SUPPLEMENTAL INFORAMTION ADDED)