As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT 1705, ON TAXI OUT OF RAMP STRONG ELECTRICAL FUME ODOR WAS SMELT IN FLT DECK AND FLT ATTENDANTS CALLED FROM CABIN SAYING THERE WAS ELECTRICAL SMOKE ODOR. SHORTLY THERE AFTER L PACK INOP LIGHT AND L PACK TEMP EICAS MESSAGE APPEARED. FOLLOWED QRH. CORRECTIVE ACTION: REPLACED LEFT PACK ACM, LEFT PACK LOW-LIMIT VALVE AND LEFT REHEATER. (8959656)