As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU GENERATOR HAS EXTERNAL OIL LEAK. REMOVED GENERATOR PER MM UP TO BUT NOT INCLUDING TASK 5 OR FILTER CHECK PER NOTE AT THE TOP OF PAGE 403 OF MM (FILTER NOT CHECKED YET). REPLACED GENERATOR WITH ROBBED GEN RAN APU FOUND OIL LEAKING FROM HAIRLINE CRACK IN GEAR BOX. REPLACED APU, OPS AND LEAK CHECK OKAY.