As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TWICE (2X) APU FAULT, NO FURTHER ATTEMPTS. REMOVED AND REPLACED APU GENERATOR FILTER DIFFERENTIAL PRESSURE SWITCH IAW AMM 49-27-15 OPS CHECK GOOD. THIS CLEARS MDDR 130465. NOTE: AN APU COLD SOAK DMI 130584 WAS ALSO OPENED IN THE AIRCRAFT PER ETOPS MNL REQUIREMENT.