As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA FLIGHT NR 2044 UNABLE TO CONTROL COCKPIT/CABIN TEMPERATURE. EMERGENCY CHECKLIST FAILED TO CONTROL TEMPS BELOW 60 DEGREES DUCT TEMP. DUCT TEMP REDUCED TO 40 DEGREES AFTER UNPRESSURIZING AND RAM VENTILATION. MAINTENANCE INSPECTED AND FOUND AIR CYCLE MACHINE TURBINE SEIZED. REPLACED AIR CYCLE MACHINE IAW D8 AMM 21-50-11, PAGES 401-406. FUNCTIONAL TEST GOOD. AIRCRAFT RETURNED TO SERVICE.