What was found
(CAN) DURING DEPARTURE, NR 1 ENGINE CHIP INDICATION LIGHT ILLUMINATED, PILOT PULSED SYSTEM, LIGHT EXTINGUISHED. A/C LANDED LOAD PASSENGERS AND CONTINUE MISSION, DURING SECOND DEPARTURE NR 1 ENGINE CHIP INDICATION LIGHT ILLUMINATED, PILOT PULSED SYSTEM AND LIGHT EXTINGUISHED. WHILE IN CRUISE NR 1 ENGINE CHIP INDICATION LIGHT ILLUMINATED, PILOT PULSED SYSTEM, LIGHT EXTINGUISHED, A/C RETURNED TO BASE. NR 1 ENGINE SCAVENGE FILTER CHIP DETECTOR INSPECTED. LIGHT FERROUS CHIPS FOUND. SCAVENGE OIL FILTER INSPECTED AND OIL SCREENED AND INSPECTED, NO MATERIAL FOUND. NR 1 ENGINE REMOVED AND SENT FOR REPAIR.