As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CONT CAB ZONE TEMP ILLUMINATED ON RECALL AND EXTINGUISHED ON MASTER CAUTION RESET. GROUNDED - YES. PERFORMED PACK ZONE CONTROLLED BITE TEST AND OPERATIONAL TEST OF CABIN TEMP CONTROL AND INDICATION OPS CHK GOOD REF B737-900 AMM 21-61-00-700-806-002 AND 21-61-00-700-807-002.