As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU VERIFICATION FLIGHT FAILED APU FAULT. RETURNED TO DEPARTURE. PERFORMED BITE CHECK ON ECU. FAULTED OVER SPEED FLAG. REMOVED AND REPLACED INLET PRESSURE (P2) SENSOR IAW AMM 49-61-04. INSP SENSE LINE AND NOTHING OBVIOUS FOUND. OPS CHECKED GOOD