As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PER SEAMC IN CONVERSATION WITH CREW, AFTER ENGINE START ON RECALL ZONE TEMP CAUTION LIGHT ON FOR TEMP CONTROL. GROUNDED - YES. CONFIRMED FAULT, "CONT CAB" ZONE LIGHT ILLUMINATES ON RECALL. NO. 2 PACK/ZONE TEMP CONTROLLER BITE SHOWS HARD FAIL "FLIGHT DECK" TCV (V143). REMOVED & REPLACED FLIGHT DECK TCV REF B737-900 AMM 21-61-21, LK CK & OPS CK NML REF AMM 21-61-00-700-806-002.