What was found
DURING DEPARTURE, ECAM FOR HIGH NAC 250 DEG C, TROUBLSHOT NR 2 ENG IAW QRH. NO CHANGE WITH THROTTLE MOVE OR BLEED VALVE OFF. REACHED TOP OF CLIMB FL290 & TEMP DID NOT REDUCE, LOWEST 215, ONCE THROTTLE FWD 240 DEG AT 290. RETURNED TO DEPART, NR 2 MOTORED, RUNNING AT IDLE THRUST. TEMP WENT TO 160 DEG C. #2 ENG HARNESSES DAMAGED DUE TO BLOWN PNEUMATIC DUCT. BOTH EEC HARNESES & 2 ADJACENT. R & R W12 & W11 HARNESSES IAW AMM REF 73-21-04-04. R & R CORE HARNESS IAW AMM 71-52-01-04. PERFORMED ENG RUN IAW JRH. NO FAULTS. #2 ENG O/B T/R WAS DAMAGED FROM BLOWN DUCT. APPEARS DELAMINATED & BLANKET DAMAGED. COMPLETED #2 T/R CHANGE IAW W/C 7113000-22-71 & 7113000-22-75. OPS CHECKED GOOD.