As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED THE LEFT PACK PUTS OUT MOIST AIR WITH DIRTY SOCK SMELL AND IS SEVERAL DEGREES WARMER THAN RIGHT PACK. H2O DOES NOT DRAIN FROM LEFT PACK BAY. MAINTENANCE REMOVED AND REPLACED THE LEFT PACK 35 DEGREE VALVE AND COALESCER BAG IAW AMM 21-51-401 AND 21-51-41-004-032. OPS CHECK GOOD.