As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF ON CLIMBOUT LEFT OIL PRESSURE ANNUNCIATOR ILLUMINATED & OIL PRESSURE WAS BELOW 60 PSI ON INDICATOR AT 3500 LB TORQUE. CREW SHUT ENGINE DOWN AND RETURNED TO FIELD WITHOUT FURTHER INCIDENT. NOTE: INFORMATION IN COMPUTER BLOCKS IS FOR GAS GENERATOR SECTION. POWER SECTION INFO IS AS FOLLOWS: TOTAL TIME 25268.9 TOTAL CYCLES 37246 AND TSO 374.3 CSO 539. RESULTS OF ENGINE TEARDOWN INVESTIGATION ARE PENDING AND WILL BE ADDED TO SDR AS RECEIVED.