What was found
DESCENDING THROUGH 10,000 R1 WINDOW BEGAN ARCING AND CRACKED, CHECK LIST COMPLETED. GROUNDED-YES. REMOVED AND REPLACED R1 WINDSHIELD, REF B737-800 AMM 56-11-11. OPERATIONS AND LEAK CHECKED GOOD. OPERATIONS CHECKS GOOD, IAW AMM 56-11-11-400-801. MOVED TERMINAL BOARD TAP ON TB5012 TO NR 3 SPOT, REFERENCING AMM 30-41-21-000-801 (CODE IS H11 AND RESISTANCE IS 39.7 OHMS). CABIN PRESSURE LEAK TEST GOOD, IAW AMM 05-51-91-790-801. AIRCRAFT RESTORED TO NORMAL CONFIGURATION.