What was found
WINDOW EICAS MSG DISPLAYED. POSITION 4.(1=L FWD, 2=L SIDE, 3=R FWD, 4=R SIDE) INOP LGT ILLUM. INOP LGT DID NOT EXTINGUISH WHEN SW WAS RECYCLED TO OFF THEN ON. BITE SHOWS CONTROL UNIT FAULT. OTHER WINDOWS HEAT OK. SUSPECT 563-9025. NO BURNING OR ARCING NOTICED IN WINDOW. RPL WINDOW HEAT CONTROLLER IAW MM. BIT TEST FAULTS NR 2 WINDOW. CK'D FOR PWR & GRD AT WINDOW. GOOD GRD, NO POWER. NR 3 WINDOW PWR & GRD CHECKED GOOD. REINSTALLED ORIGINAL HEAT CONTROLLER. CHANGED MEL TO 3041N. FOUND CRACK RUNNING THROUGH TERMINALS J6, J7, J8 TO EDGE OF RT SLIDING WINDOW. REPLACED RT SLIDING WINDOW.