What was found
CARGO HEAT ON FULL HOT FOR APPROX 20-30 MINS AND AFT CARGO TEMP IS GOING DOWN, CARGO TEMP IS 56 DEGREES, HOT AIR VALVE DOES NOT OPEN WITH TEMP AT FULL HOT. REPLACED TRIM AIR VALVE AND PRESSURE REGULATOR VALVE PER MM.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
CARGO HEAT ON FULL HOT FOR APPROX 20-30 MINS AND AFT CARGO TEMP IS GOING DOWN, CARGO TEMP IS 56 DEGREES, HOT AIR VALVE DOES NOT OPEN WITH TEMP AT FULL HOT. REPLACED TRIM AIR VALVE AND PRESSURE REGULATOR VALVE PER MM.