What was found
(CAN) AFTER APPLYING TO POWER AND STARTING TO ROLL (APPROX 35KTS), NR 1 ENGINE SHUTDOWN WITH RELATED ECAM MESSAGE ENGINE FAIL . AIRCRAFT CAME BACK TO THE GATE. THERE WAS NO OBVIOUS DAMAGE TO THE ENGINE INTAKE AND EXHAUST. THE EEC WAS INTERROGATED AND MCDU AND REPORTED NO FAULT. ATTEMPTED ENGINE RUN BUT ENGINE NEVER REACHES IDLE. DURING START CYCLE IT RAPIDLY WENT FROM 7 PERCENT TO 63 PERCENT (APPROX 2 SEC.) WITH ECAM MESSAGE ENG CONT. FAULT AND ENGINE SHUTDOWN PROCEDURES. PERSONNEL ON GROUND REPORTED A BIG OIL LEAK FROM ENGINE COWLING AND C DUCT AREA. TROUBLESHOOTING INSPECTION REVEALED METAL PARTICLES IN OIL FILTER AND MCD. ENGINE WAS REPLACED.