As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IDLE DECENT ELECTRICAL SMELL IN COCKPIT. PACK 1 SEEMED TO BE INOP AS THE FLT DECK BECOME HOT AND HUMID. WHEN WE ADDED POWER IT SEEMED TO OPERATE AGAIN. ELECTRICAL SMELL DISIPATED AND AC ALSO START TO PERFORM NORMAL.-C/A-REMOVED AND REPLACED RECIRCULATION FAN AIW AMM 21-24-01. OPC GOOD. PERFORMED ENGINE RUN WITH APU ON. ALL PACKS RAN. NO FURTHER SMELL NOTED. OPC GOOD IAW 21-51-00 AMM.