What was found
(CAN) AFTER A DROP DURING FIRE BOMBING OPERATIONS, THE CAPTAIN AND FO PERFORMED ENGINE VISUAL CONDITION CHECK. THE FO NOTED A LARGE AMOUNT OF OIL LEAKING FROM THE RT ENGINE. OIL TEMPERATURE, PRESSURE AND QUANTITY WERE CLOSELY MONITORED ON THE 20 MIN. FLIGHT BACK TO THE MAINTENANCE BASE. MAINTENANCE FOUND OIL LEAKING FROM AN INSERT ON THE FRONT NOSE CASE. THE NOSE CASE WAS REPLACED AND THE A/C RETURNED TO SERVICE.