What was found
ATB-ELEC IDG 2 OIL LO PR // REMOVED #2 ENG IDG REF A330 AMM 24-21-51.INSTALLED #2 ENG IDG REF A330 AMM 24-21-51, LEAK/OPS CHECK GOOD. OFF P/N 43-2421-9-001 S/N 01946 ON P/N 43-2421-9-001 S/N 02418 DURING EPGS TEST #2 GCU FAILED, R & R GCU REF A330 AMM 24-22-34 OPS CHECK GOOD, ODI C/W OK FOR SVC. CONTROL UNIT, G OFF 33-2423-9-0007 11980 ON 33-2423-9-0007 11425