What was found
(CAN) AFTER ENGINE SHUTDOWN CREW REPORTED THAT NR 2 ENGINE OIL QUANTITY READS 4.1. THE CREW CARRIED OUT A WALK AROUND FOUND A PUDDLE OF OIL UNDER NR 2 ENGINE. MAINTENANCE WAS ADVISED AND ASKED TO INVESTIGATE/SERVICE OIL AS REQUIRED. CONTRACT MAINTENANCE FOUND OIL LEAKING FROM B SUMP GRAVITY SCAVENGE OIL LINE AT THE 6 O`CLOCK POSITION. MAINTENANCE REPS WERE SENT WITH A SERVICEABLE REMOVED SUSPECT SCAVENGE LINE. MAINT ARRIVED AT THE AIRCRAFT. THE LINE WAS FOUND NOT LEAKING. WHEN THEY DID A 40 SECOND ENGINE MOTOR, THEY LOST ABOUT 2 QTS OF OIL. IT SEEMS LIKE THE INNER OIL LINE IS LEAKING, WHICH CANNOT BE REPLACED IN THE FIELD. IT REQUIRES A SHOP VISIT (ENGINE CHANGE). SDR SUBMITTED DUE TO THE SUDDEN FAILURE AND SEVERITY OF THE LEAK.