As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ATB - AFTER T/O, NR 3 PACK WOULD NOT OPERATE. ZERO AIRFLOW. NO FUNCTION. SWITCHES AND C/B'S RECYCLED. TRIED IN MAN/AUTO. NO HELP. NOTE: ISOLATION A BLEED VALVES OPEN WITH NORMAL DUCT PRESSURE. T/S PERFORMED. FOUND NR 3 PACK WATER SEPARATOR FROZEN UP. WATER BAG CLEANED AND RE-INSTALLED. F/C NR 3 PACK AS PER MM 21-50-00. FOUND NR 3 WATER SEPARATOR DRAIN LINE WITH SMALL CRACK. DRAIN LINE TEMP REPAIR PERFORMED. DEFERRED UNDER D353304.