What was found
(CAN) ENGINE CHIP DETECTOR WARNING IN FLIGHT. 2ND WARNING LIGHT IN 6 HOURS. FINE FERROUS METAL ON PLUG. SMALL BRASS PARTICLES IN OIL FILTER. TROUBLE SHOOTING INDICATED NR 1 BEARING. NR 1 BEARING REMOVED, INNERRACE SPALLED 360 DEGREES, BEARING SEPARATOR (BRASS) COMPLETELY DISINTEGATED IN 9 LARGE PIECES AND SEVERAL SMALL ONES. (CHIP DETECTOR ON 1ST WARNING SHOWED 2 SMALL PARTICLES. CHIP PLUG CLEANED, AIRCRA FT HOVERED 30 MINUTES, NO WARNING LIGHT AND FUZZ FOUND ON CHIP DETECTOR.