What was found
RIGHT SIDE WINDOW OVERHEAT ILLUMINATED. ACCOMPLISHED QRH. WHEN WINDOW HEAT SWITCH WAS TURNED ON, THE OVERHEAT LIGHT ILLUMINATED AGAIN. GROUNDED - YES. GVI OF RIGHT SIDE WINDOW HEAT TERMINALS, CONNECTOR FOR COIL CORD 2X, & CB = FOUND R SIDE WINDOW HEAT CB OPENED. OPENED P6-12 CB PANEL = GVI OF CB & TERMINALS CHECK OK. RESET R SIDE WINDOW CB. BITE TEST OF WHC FAULTED WINDOW SENSOR. WIRING & SENSOR RESISTANCE WITHIN LIMITS, RESISTANCE OF R SIDE WINDOW HEAT FILM IS WITHIN LIMITS. R SIDE WINDOW REPLACED 6/22/23, R SIDE C/B FOUND OPEN 09/07/23. R SIDE WINDOW CB NOW FOUND OPEN 2X. OPS CHECK OF WINDOW HEAT SYSTEM CHECKS OK. PRESSURIZED A/C WHILE OPS CHECKING WINDOW HEAT CHECKS OK. AS A PRECAUTION REPLACED WINDOW / PITOT HEAT MODULE (P5-9) WITH SERVICEABLE UNIT, OPS CHECKS OK. REF FIM 30-41 TASK 801 & 811, AMM 30-41-21 & 30-41-41, WDM 30-41-11, AMM 20-60-01-860-801. ETOPS GROUND VERIFICATION CHECK SUCCESSFUL.