As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CONT CABIN ZONE TEMP LIGHT AFTER START RESET WITH MASTER CAUTION RESET. GROUNDED - YES. CONFIRMED FAULT, CONT CAB ZONE LIGHT COMES ON WHEN RECALL IS PRESSED. NO.2 PACK/ZONE TEMP CONTROLLER SHOWS HARD FAIL "FLT DECK TCV". REMOVED AND REPLACED SAME PER AMM 21-61-21, GROUND FUNCTIONAL CHECK NORMAL REF AMM 21-61-00. AIRCRAFT RELEASED FROM MEL 21-21G, CN 2804459. SEAMC NOTIFIED "DAVE". REVERSAL OF CONFIGURATION CHANGES NOT REQUIRED.