What was found
CMH - FLT 139 - DURING CRUISE, NR 1 ENGINE LOST OIL QUANTITY AND WAS SHUT DOWN IN FLIGHT. CHIP DETECTOR RETAINING PINS FAILED AND SPRING VALVE FAILED TO CLOSE. REMOVED AND REPLACED CHIP DETECTOR PLUG AND HOUSING, MFG P/N B7670, MANUFACTURED BY VICKERS, INC. OPS CHECK NORMAL. (M)