What was found
AFTER PUSHBACK & UPON PERFORMING RECALL CHECK, CONTROL CABIN ZONE TEMP LIGHT ILLUMINATED & EXTINGUISHES UPON MASTER CAUTION RESET. ACFT GROUNDED. R & R FLIGHT DECK TRIM VALVE IAW AMM 21-61-21.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AFTER PUSHBACK & UPON PERFORMING RECALL CHECK, CONTROL CABIN ZONE TEMP LIGHT ILLUMINATED & EXTINGUISHES UPON MASTER CAUTION RESET. ACFT GROUNDED. R & R FLIGHT DECK TRIM VALVE IAW AMM 21-61-21.