As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FAR 135 OPERATOR HAD TO CONDUCT AN EMERGENCY LANDING DUE TO A LEFT ENGINE FAILURE. THE ENGINE WAS BEING MAINTAINED UNDER THE MORE PROGRAM STC SE0000EN. THE ENGINE FAILED. TEAR-DOWN REPORT SHOWED THE ACCESSORY GEARBOX INPUT DRIVSHAFT AND DRIVESHAFT BEARINGS FAILED. THIS ENGINE EXCEEDED THE RECOMMENDED OVERHAUL TIME OF 3,000 HOURS BECAUSE IT WAS MAINTAINED UNDER THE MORE STC (3,714.9 HRS). (X)