As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB-OUT, CREW OBSERVED OIL PRESSURE FALLING AND OIL QTY FALLING. INITIATED ENGINE SHUTDOWN AND MADE AN UNEVENTFUL, UNSCHEDULED LANDING. INVESTIGATION REVEALED HIGH SPEED GEARBOX CHIP DETECTOR MISSING FURTHER INVESTIGATION REVEALED A BOLT WAS LODGED IN THE CHECK VALVE POPPET HOLDING VALVE OPEN. DETECTOR HOUSING AND CHIP DETECTOR REPLACED WITH NEW, ENGINE SERVICED, FILTERS CHANGED AND RAN. AIRCRAFT RELEASED FOR SERVICE. (M)