What was found
STARTED DESCENT FROM FL 310, THE OIL TEMP SPIKED UP TO 165 ON THE LT ENGINE. THROTTLE WAS PULLED TO IDLE, & CHECKLIST RUN FOR HIGH OIL TEMP, LT ENGINE. OIL QUANTITY INDICATED 0 (ZERO). AFTER 7 MINUTES OIL TEMP REDUCED BELOW AMBER BAND. ENGINE REMAINED AT IDLE, IAW CHECKLIST, UNTIL SHUTDOWN ON LANDING ROLL. A FLAPS 25 LANDING WAS PERFORMED, NO REVERSE, BRAKES 3. BRAKE TEMPS ON TAXI IN REMAINED LOW. NORMAL TAXI IN WAS ACCOMPLISHED ON ONE ENGINE. UPON BLOCK-IN ENGINE OIL QTY REMAINED REMAINED AT 0. REMOVED #1 ENGINE IAW ETOPS. REMOVE BOOTSTRAP WORK CARD 7100000-01-03, REV 14. REPLACED NR 1 ENGINE IAW ETOPS NR 1 ENGINE INSTALL BOOTSTRAP WORK CARD 7100000-01-04 REV11. A/C OK FOR SERVICE