As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CLIMBOUT, GOT RIGHT "PACK" LIGHT, FOLLOWED QRH. LIGHT WENT OUT, COMES BACK ON RECALL. GROUNDED - YES. PERFORMED PACK TEMP CONTROL BITE PROCEDURE FOR BOTH ZONE TEMP CONTROLLERS PER B737-800 FIM 21-62 TASK 801. PERFORMED NUMEROUS FIM 21-53 TASKS 806. LIGHT STAYS EXTINGUISHED.