As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CONT CAB ZONE TEMP ILLUMINATES ON RECALL EXTINGUISHED ON MASTER CAUTION RESET. GROUNDED - YES. ACCOMPLISHED BITE TEST PER B737-800 AMM TASK 21-61-00-700-806-002. FOUND CONT CAB TRIM VALVE FAIL ON BITE & LAST FLT. AFTER TEST RESET AND FAULT IS GONE. OPS GOOD PER AMM TASK 21-61-00-700-811-002. NO HISTORY LAST 30 DAYS.