What was found
NR 2 ENG IDG AIR OIL HEAT EXCHANGER VALVE FAILED TEST. PRESENT LEG FAULT MAINT MSG 24529. ACCOMPLISHED 24-11 FAULT TREE CONFIG 1 PAGE 104. BLOCK 1,6,7,8,12,13. RANG WIRES FROM GCU2 DISCONNECT POS J5 TO PRESS SWITCH CON DS1611 POS B & FROM DS1611 POS A TO VALVE CONN DV350 POS H. RANG FROM GUC2 DISCONNECT F1 TO VALVE CONN DV350 POS E & CHECKED ALL GNDS AD VALVE CON DV350 POS F,A,J,G. REPLACED HPC SECONDARY FLOW CONTROL VALVE SOLENOID IAW AMM 75-33-04-401 & IDG AIR-OIL HEAT EXCHANGER ASSEMBLY IAW AMM 24-11-15-401, NO HELP. LATEST EXISTING FAULT FAILURE INDICATES "IDG-2 COOLER VALVE FAIL OPEN" MSG24529A.