As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON RECALL ZONE TEMP. CONT CAB ILLUMINATES EXT. ON RESET GROUNDED YES. VERIFIED ZONE TEMP. CONT. 2 SHOWS ON BIT AND PREV. FLT. FLT. DECK TRIM VALVE FAULT. INSTALLED SERVICEABLE TRIM AIR MODULATING VALVE. REF. AMM 21 61 21. PERFORMED BITE TEST ON PACK / ZONE TEMP. CONTROLLERS. NO FAULTS LOGGED. LEAK CHECKED VALVE. NO LEAKS NOTED.