As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS SIGNIFICANT ITEM: APU FAILED TO START IN FLIGHT INTO GUM. THE APU OPERATED NORMALLY ON THE GROUND. TROUBLESHOOTING STEPS INDICATED A FAULTY OIL PRESSURE PUMP AND DE-OIL SOLENOID VALVE. REPLACED DE-OIL SOLENOID VALVE. OPS CHECK NORMAL ON GROUND. (SEE SDR I5PA2022042388804 SUBMITTED FOR THE REPLACEMENT OF THE OIL PRESSURE PUMP.)