As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT PACK LIGHT ILLUMINATED DURING APPROACH, HIT MC, LIGHT OUT. ACFT GROUNDED. REPLACED RT TEMP CONTROL VALVE IAW MM TASKS 21-51-10-000-801, 21-51-10-400-801. PERFORMED PACK/ZONE TEMP CONTROLLER BITE PROCEDURES TEST IAW TASK 21-51-00-700-803. TESTED NORMAL (GREEN). PERFORMED MAINTENANCE PROCEDURES AND REVERSED.