As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REF TSR908126: APU OIL MONITORING DATA SHOWS OIL CONSUMPTION TO BE TRENDING HIGHER THAN EXPECTED. ACCOMPLISHED FIM TASK 49-95-801 UP TO STEP E-1-B. WHILE ACCOMPLISHING TSR 908126 FOUND APU OIL COOLER LEAKING. ACFT GROUNDED. REPLACED APU OIL COOLER, REF AMM 49-91-41, LEAK CHECK GOOD.