As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON MASTER CAUTION RECALL, RT PACK LIGHT ILLUMINATES. LIGHT EXTINGUISHES WITH MASTER CAUTION RESET. GROUNDED-YES. PERFORMED PACK ZONE TEMPERATURE BITE, PER B737-800 FIM 21-62 TASK 801 NR 2 CONTROLLER FAULTED. RT TCV. PERFORMED FIM 21-62 TASK 831 TO STEP F (3) TCV V141 HAS 115VAC. REMOVED AND REPLACED RIGHT HAND PACK TEMP CONTROL VALVE, IAW B737-800 AMM 21-51-10. OPERATIONS AND LEAK CHECK GOOD.