What was found
MAINTENANCE DISCREPANCY: THE PILOT REPORTED WHILE IN CRUISE FLIGHT THAT THE L\H ENGINE CHIP DETECTOR LIGHT ILLUMINATED. THE PILOT FOLLOWING PROCEDURES PERFORMED AN IN-FLIGHT SHUT DOWN OF THE LEFT ENGINE. THEN THE PILOT DECLARED AND EMERGENCY AND REQUESTED TO RETURN TO THE DEPARTURE AIRPORT. THE PILOT AND CREW LANDED IN KLAN WITHOUT FURTHER INCIDENT AND TAXIED TO PARKING. MAINTENANCE INSPECTED THE LEFT ENGINE MAGNETIC CHIP DETECTOR AND FOUND METAL FUZZ AND ONE SMALL SLIVER. MAINTENANCE PERFORMED A CHIP DETECTOR DEBRIS INSPECTION AND NO FURTHER DEFECTS WERE NOTED. MAINTENANCE ACQUIRED A S.O.A.P. SAMPLE AND SENT FOR EVALUATION. THEN THE AIRCRAFT WAS RETURNED TO SERVICE WITH A 10 FLIGHT HOUR RE-INSPECT MAINTENANCE CONSTRAINT. A SUPPLEMENTAL REPORT WITH FINAL CORRECTIVE ACTION WILL HAVE TO BE SUBMITTED.