What was found
PACKS OVERHEATED ON TAXI OUT. RETURNED TO GATE. HAZE IN CABIN. FOUND RIGHT PACK FREEZING UP, REPLACED 35 DEGREE CONTROLLER AND VALVE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
PACKS OVERHEATED ON TAXI OUT. RETURNED TO GATE. HAZE IN CABIN. FOUND RIGHT PACK FREEZING UP, REPLACED 35 DEGREE CONTROLLER AND VALVE.