As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS - CKPT TRIM AIR EITHER FULL OPEN OR FULL CLOSED REGARDLESS OF KNOB POSITION ONLY FIRST THIRD OF FLIGHT. REMOVED AND REPLACED ZONE CONTROLLER PER AMM 21-63-34. PERFORMED SYS TEST OF COCKPIT AND CABIN TEM CONT. PER AMM 21-63-00 OPS CHECK GOOD.