What was found
ON SCHEDULED INSPECTION FOUND VERY SMALL METAL PARTICLES IN OIL FILTER, NONE FOUND IN FINGER SCREEN. REMOVED ENGINE AND SEND FOR INSPECTION AND REPAIR. AFTER COMPLETION OF ENGINE TEAR DOWN EVERYTHING WAS WITHIN SPECS BUT THE LT MAGNETO DRIVE GEAR BEARING WORN. THE ENGINE DID NOT NEED TO BE TORN APART, BECAUSE THOSE BEARINGS CAN BE REPLACED IN THE FIELD. RECOMMENDATION: CHANGE BEARINGS P/N 67542 EVERY 500 HRS OR WHENEVER THEY FEEL ROUGH.