As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ZONE TEMP LIGHT INOP (CONTL CAB) LIGHT GOES OUT WHEN RECALL RESET. FOUND FLT DECK TRIM VALVE LIGHT ON WHILE PERFORMING BITE CHECK. VERIFIED VALVE P/N W 398908 3. INSTALLED THE SERVICEABLE TRIM AIR MODULATING VALVE. PERFORMED BITE CHECK OF BOTH TEMP ZONE CONT/ NO FAULTS. LEAK CHECK GOOD. REF AMM 21 61 21.