As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT RETURNED OF FLIGHT AS A CONSEQUENCE OF DURING CLIMB LEFT PACK TRIP OFF LIGHT TURNED ON. THE OPERATIONAL PROCEDURE WAS PERFORMED, FLYING AT 250 FL. THE CABIN TEMP CONTROLLER BITE TEST WAS PERFORMED IAW FIM 21-52 TASK 834 ALL CORRECT. DURING OVERNIGHT CHECK, THE CABIN TEMP CONTROLLER BITE TEST WAS PERFORMED IAW FIM 21-52 TASK 834, THE RAM AIR DOOR WAS VERIFIED AND THE AIR CONDITIONING RELAY WAS REPLACED IAW 21-52-02 TASK 21-52-02-400-801, TESTED CORRECT.