As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CONTROL CABIN ZONE TEMP AND LEFT PACK LIGHTS ILLUMINATED. ACFT GROUNDED. ACCOMPLISHED PACK/ZONE TEMP CONTROLLER BITE TEST AND FOUND TCV FAIL ON LEFT CONTROLLER, RESET FAULT AND AND RETESTED WITH NO FAULT. OPERATED SYSTEM. CONT. CABIN ZONE TEMP AND LT PACK LIGHTS REMAIN OUT.