As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON RECALL RT PACK LIGHT ILLUMINATES. EXTINGUISHES ON MC RESET. GROUNDED - YES. REMOVED AND REPLACED RH PACK TEMP CONTROL VALVE AS REQUIRED OPS CKD GOOD, LEAK CKD GOOD NO LEAKS NOTED. PERFORMED PACK/ZONE TEMP CONTROLLER TEST NO FAULTS FOUND REF B737-900 AMM 21-51-10-400-801.