As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU AUTO SHUTDOWN RESULTING IN SINGLE GENERATOR OPERATION. DECLARED EMERGENCY AND DIVERTED, APU OIL QUANTITY INDICATES 'MIN'. INDICATED OVER 3/4 IN AUS. ATTEMPTED RESTART BUT APU AUTO SHUTDOWN EACH ATTEMPT. R & R OIL COOLER AND FAN IAW MM 49-91-15-04 AND 49-52-11-04. NO LEAKS FOUND.