As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HOT ELECTRICAL ODOR SMELLED IN COCKPIT AND FRONT OF FIRST CLASS AREA. *S/D* POTABLE WATER SYSTEM AIR COMPRESSOR WAS FOUND TO HAVE BEEN OVERHEATING AND SMOKING. SHOP FINDINGS FOUND WATER IN COMPRESSOR. REPLACED AIR COMPRESSOR AND UNLOADER CHECK VALVE.