As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING THE AFTER START CHECKLIST AFTER PUSHING RECALL. THE ZONE TEMP LIGHT ON THE CONT CAB ILLUMINATED. THE QRH WAS ACCOMPLISHED AND THE ZONE TEMP LIGHT EXTINGUISHED UPON PUSHING THE MASTER CAUTION LIGHT. GROUNDED - YES. ACCOMPLISHED FIM 21-62 TASK 801. LT PZTC GOOD. RT PZTC SHOWED "FLT DECK TRIM VALVE" ON BIT AND PREV FLT.