What was found
THRU 18,000 AFTER TURNING TAXI L&R TURNOFF LIGHTS & WING LANDING LIGHTS, ENTIRE 2 AC BUS FAILED. "R AC BUS ISLN" CAUTION MSG. RAN QRH & COMPLIED. A MAYDAY CALL WAS DECLARED. MULTIPLE SYSTEMS FAILURES OCCURRED DURING REST OF DESCENT. LP 1063372 - ITEM 5: ALL 3 HYD QTY INDICATOR READ RF AND DISPLAY 00.2, 00.3, 00.3 RESPECTFULLY. LP 1063372 - ITEM 6: AUTO BRAKES INOP ON DESCENT. LP 1063373 - ITEM 7: NO AUTOLAND ON ASA. LP 1063374 - ITEM 10: RIGHT IDG INOP. (<P>UPON T/S FOUND METAL IN PIN D13 OF CONNECTOR D256B CAUSING SHORT. REMOVED AND REPLACED RIGHT GEN CONTROL UNIT IAW 24-22-02. PERFORMED ENG RUN IAW 71-00-00 AND RIGHT IDG OPS TEST IAW 24-11-00. TEST NORMAL AT THIS TIME. NO FURTHER DEFECTS NOTED. DMI 112899 CLOSED. </P>)