What was found
DURING IDLE DESCENT PASSING FL 250 RIGHT GENERATOR DROPPED OFF LINE. WOULD NOT RESET. ACFT GROUNDED. REPLACED THE NR 2 IDG IAW AMM 24-11-11-401. OPS CHECKED GOOD. LEAK CHECKED GOOD. PERFORMED UNSCHEDULED IDG REMOVAL FOR CAUSE IAW AMM 24-11-11-080-801. WHILE TROUBLESHOOTING FOUND HIGH RESISTANCE ACROSS "GEN 2 " SWITCH IN OFF POSITION. REPLACED P5-4 PANEL ASSY IAW AMM 24-21-51-400-801. ACCOMPLISHED OPERATIONAL TEST FOR THE AC GENERATION AND CONTROL SYSTEM. ALL TESTS PASSED IAW AMM 24-21-00-700-803.