As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMBOUT SMOKE WAS NOTICED IN THE COCKPIT AND CABIN. APU FAIL LIGHT ILLUMINATED AND APU SHUTDOWN. FOUND APU OIL QTY EMPTY, RESERVICED & OIL LEAKS INTO APU INLET. ALSO FOUND METAL ON MAGNETIC OIL PLUG. REMOVED AND REPLACED APU IAW CESSNA 560 MM & HONEYWELL RE100XL MM.