As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON RECALL MASTER CAUTION AND "AIR CON " LIGHT ILL ZONE TEMP LIGHT ABOVE CONTROLLER CABIN ILLUMINATED LIGHTS EXTINGUISHED OM MASTER CAUTION RESET. GROUNDED - YES. PERFORMED PZTC BITE IAW AMM 21-61-00, ONE HIT FOR FLT DECK TRIM VALVE AT CONTROLLER NR 2 M1443. PERFORMED PZTC BITE AND TEST PASSED. SUSPECTED INTERMITTEN FAULT.