As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN)L/H ENGINE OIL LOW PRESSURE LIGHT ILLUMINATED WITH CORRESONDING LOW OIL PRESSURE INDICATION ON GAUGE DURING TAKEOFF AND CLIMB. L/H ENGINE SHUTDOWN AND ONE ENGINE OUT LANDING MADE WITHOUT INCIDENT. L/HGEARBOX OIL BYPASS PIN ASSEMBLY LOCK/ATTACH BOLT HOLE THREADS WOULD NOT HOLD PIN/BOLT TORQUED IN PLACE. HELI-COIL INSTALLED.