As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
" CONT CAB-ZONE TEMP" LIGHT ON RECALL. ACFT GROUNDED. ACFT CHECKED AND RELEASED IAW MEL 21-21F, CABIN ZONE TEMP CONTROL INOPERATIVE. ACCOMPLISHED PACK/ZONE TEMPERATURE CONTROLLER BITE TEST REF AMM 21-61-00, OPS TEST GOOD. NO FURTHER DEFECTS NOTED. THIS CLEARS MEL 21-21F.