What was found
L SIDE WINDOW" EICAS MESSAGE 2 HOURS INTO FLIGHT. QRH CHECKLIST CYCLES WINDOW HEAT SWITCH. EICAS MESSAGE EXTINGUISHED. L2 WINDOW HEAT INOP.(<P>PERFORMED FLIGHT COMPARTMENT WINDOW ANTI ICE TEST PER AMM 30-41-00. OPS CHECK GOOD. T/S PER WDM 30-41-12. PERFORMED CONTINUITY CHK ON D5872 PIN 1 TO J8C, PIN 2 TO J8D. NO FAULTS. PIN 3 TO J6A, PIN 4 TO J6B. NO FAULTS. PIN 5 TO J7A, PIN 6 TO J7B. NO FAULTS. CONTINUITY CHK FM D5872 TO D4294 PIN 1 TO PIN 11. NO FAULTS. PIN 6 TO PIN 14. NO FAULTS. PIN 5 TO PIN 13 NO FAULTS. PERFORMED WIRE INTEGRITY CHK W/ MEGGAR. NO FAULTS NOTED. T/S L2 WINDOW IAW FIM 30-41-00 ALL CONNECTIONS CLEAN AND SECURE. WINDOW HEAT ELEMENT LOOP RESISTANCE 17.3 RANGE 17.43-23.59 WINDOW CONNECTORS D1920 CD SENSOR D1918. 325 RANGE 165-375 OHMS. R & R WHCU IAW AMM 30-41-01, OPS CHECKED GOOD.