What was found
IN CRUISE FLIGHT EICAS ILLUMINATED, A DAU 2 WRN MISCOMP, 214M1302 THEN FOLLOWED BY BLD 2 LEAK WARNING. EXECUTED AOM PROCEDURES & LANDED SAFELY. R & R NR 2 DAU, OPERATIONS CHECKED GOOD IAW AMM CH 31-41-01. PERFORMED LEAK CHECK OF THE NR 2 BLEED SYS WITH NO DEFECTS NOTED IAW AMM CH 36-11-09.