As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU AUTO SHUTDOWN IN FLIGHT. REMOVED AND REPLACED APU GEARBOX SHUTTLE VALVE AND PRESS SHUTOFF VALVE IAW MM 49-26-14-4 AND 49-26-13-4. RAN APU NO SMELL OF OIL IN PACKS. CHECKED APU OIL LEVEL. NO SERVICING REQUIRED. PLACARD REMOVED. APU OPS CKD GOOD. SHUTTLE VLV P/N 3616848-2, S/N 0341 ON.