What was found
GRR - ON DEPARTING REACHING 5,000 FEET ALTITUDE, THE RIGHT GEARBOX OIL PRESSURE LIGHT, ALTERNATOR LIGHT, GENERATOR FAIL LIGHT CAME ON AT THE SAME TIME. THE FLIGHT CREW DID A PRECAUTIONARY ENGINE SHUT DOWN AND RETURNED TO GRR. THE AIRCRAFT LANDED WITHOUT ANY OTHER PROBLEMS. AFTER CHECKING THE MECHANIC, FOUND A SHEARED GEARBOX DRIVE SHAFT.