As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ENGINE BLEED FAN AIR MODULATING VALVE (FAMV) FAILED TO OPEN OR CLOSED OR LEFT AIR SUPPLY AND CABIN PRESSURE CONTROLLER FAILURE. STATUS MSG-3610180 LATCHED AP MODE. REPLACED NR 1 ENGINE FAN AIR VALVE PER MM. PERFORMED OPERATIONAL TEST ON MAT AND RAN ENGINE. OPERATIONAL TEST GOOD.