What was found
R1 WINDOW CRACKED IN FLIGHT AFTER PILOTS NOTICED ARCING. SEE ATTACHED PICTURE. WINDOW CHANGE. COMPLEATED STEPS THROUGH 1 B. (4) IN PREPARATION FOR R1 WINDOW REMOVED #1 RH WINDOW REF AMM 56-11-01-00A-520A. STARTED INSTALL OF NEW 1R WINDSHIELD IN REFERENCE TO AMM REMOVAL. REF. DMC-B787-A-56-11-01-00A-520A-A ADD EMP:110447 56-11-01 00A-720A-A ITEMS 1B - C(4)(I). FASTENERS ARE NOT TORQUED. ADD EMP:U110124 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1195473 SN OFF 1362 WINDSHIELD, B78 OFF 78-5610-9-9002 1362 ON 79-5611-9-0002 4750 REF NOTED AMM ITEMS C.(5). CONTINUED INSTALLATION OF NEW 1R WINDSHIELD REF.AMM 56-11-01 CONTINUED INSTALL OF NEW #1 RIGHT WINDSHIELD REF AMM RE-TORQUED THE REAMAINING 3 WINDOWS, 2L, 1R, AND 2R IN REFERENCE RE-INSTALLED THE RH WIPER ASSY IN REFERENCE TO AMM 00A-720A-A FROM STEP C(4)(J) THRU STEP C(4)(Q)(5)A), STEP 56-11-00-00A-720A. AFTER REQUIRED DWELL PERIOD, APPLIED FINAL TO AMM 56-11-01-00A-720A, ITEMS C.(4)(Q)5)C) NOTE. 56-11-01-00A-720A ITEMS C (5) (11). OPS CHECK GOOD OF RH WIPER C(4)(Q)(5)A) APPLY 8 TO 12 HOURS OF DWELL TIME BEFORE APPLYING TORQUE TO ALL FASTENERS REMOVED FOR #1 RIGHT WINDSHIELD REMOVE ADD EMP:U375131 AT THIS TIME. FINAL TORQUE WILL BE COMPLETE (FOR 8 HOUR DWELL) AT APPROX 08:00 AND REPLACE REF NOTED AMM ITEMS C.(4)(Q)(5)(B) AND (C) AND ADD EMP:U375131,U348637, 19 OCT. C(4)(Q)(6). APPLIED AERODYNAMIC SEALER AT REQUIRED LOCATIONS ADD EMP:U008906 ADD EMP:U118148 COMPLETED INSTALLATION OF NEW #1 RIGHT WINDSHIELD REF AMM 56-11-01