As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CLIMB AND DESCENT LEFT PACK HAD WET SOCK SMELL IN COCKPIT AND FWD GALLEY. PERFORMED CONDITIONAL INSPECTION PER AMM 05-51-56. FOUND SMELL TO BE FROM LEFT PACK. FWD LEFT PACK TO MEL 21-1-01. RAN LEFT PACK; PACK TRIP OFF LIGHT ILLUMINATED. FOUND ACM SEIZED. REPLACED LEFT PACK AIR CYCLE MACHINE IAW AMM 21-51-04. LEAK AND OPS CHECKS GOOD.