What was found
UNABLE TO PRESSURIZE IN FLIGHT. DUMPED FUEL, RETURNED TO KMIA. INSPECTED A/C AND FOUND APU EXHAUST DOOR OPEN. REMOVED AND REPLACED DOOR ACTUATOR IAW 49-00-10. PERFORMED PRESSURIZATION CHECK, SYSTEM OPS CHECK OK 21-10-2.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
UNABLE TO PRESSURIZE IN FLIGHT. DUMPED FUEL, RETURNED TO KMIA. INSPECTED A/C AND FOUND APU EXHAUST DOOR OPEN. REMOVED AND REPLACED DOOR ACTUATOR IAW 49-00-10. PERFORMED PRESSURIZATION CHECK, SYSTEM OPS CHECK OK 21-10-2.