As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS SIGNIFICANT SYSTEM - UNABLE TO CONTROL FWD CABIN COMPARTMENT TEMPERATURE. TEMP IN FWD CABIN FLUCTUATED BETWEEN 69F AND 80F WITH KNOB IN 11 O'CLOCK POSITION CONTINUOUSLY DOING FLIGHT. TURNED OFF TRIM AIR SWITCH AND TEMPS IN ALL CABIN STABILIZED 75F. CLEANED CONNECTOR AND TEMP SENSOR OPS CHECK GOOD.