As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOST ALL TARGET TEMPS EXCEPT F/D. ALL TEMPERATURE ZONES INCREASING AND DECREASING ERRATICALLY. REMOVED AND REPLACED MASTER TRIM AIR PRESSURE REGULATING AND SHUT OFF VALVE IAW AMM 21-61-08 & 1. MASTER TRIM AIR VALVE TRIPPING C/B. CLEARED