What was found
DURING CRUISE, NR 1 OIL PRESS LIGHT FLASHED INTERMITTENTLY, OIL PRESS OSCILATED BETWEEN 25-48 PSI, OIL TEMP ROSE TO 125 C, OIL QUANTITY INDICATED 2 GALS, N1 N2 READ NORMAL. PERFORMED PRECAUTION BY SHUT DOWN AS PER ABNORMAL IN FLIGHT ENG SHUT DOWN. REMOVED AND REPLACED NR 1 ENGINE, OPS AND LEAK CHECKED NORMAL IAW ARROW AIR J/C 6519 AND ARROW AIR J/C 6527 AND M/M 72-00.