What was found
FLIGHT 5432 SMOKE IN COCKPIT DURING BOARDING, APU AUTO-SHUTDOWN.DETERMINED APU TO BE SOURCE OF SMOKE - SECURED APU AND DEFERRED MAINT PER MEL.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FLIGHT 5432 SMOKE IN COCKPIT DURING BOARDING, APU AUTO-SHUTDOWN.DETERMINED APU TO BE SOURCE OF SMOKE - SECURED APU AND DEFERRED MAINT PER MEL.