What was found
FLT# 2223 JFK-JFK (ETOPS ) AFTER INITIAL TAXI, SINGLE ENGINE WITH APU - ENG 1 SHUTDOWN COMPLETELY BY ITSSELF. THEN ENG 1 RESTARTED ALL BY ITSSELF TO A NORMAL IDLE; REF MDDR# 603686 (PERFORMED ENGINE IDLE POWER TEST ITH APU BLEED PER AMM 71-00-00-720-811-A. OPS TEST GOOD, NO FAULTS APPEAR ON ECAM, ALL ENGINE PARAMETER INICATE NORMAL. PERFORMED ENGINE START WITHOUT BLEED PER FCOM 1, CHAPTER 7. OPS TEST GOOD BOTH ENGINE START NORMAL. ALL PARAMETERS GREEN. AIRCRAFT SYSTEM RESPONDS NORMAL, A/C OKAY FOR SVC) FOR APU BLEED MEL & L/P 4444553 ITEM#2 FOR ENG#1 STARTER DUCT ASSY REMOVED AND REPLACED.