What was found
DURING TAKEOFF ROLL MASTER FIRE WARNING ON GLARESHIELD AND SECOND OFFICERS FIRE WARNING LIGHT AND FIREBELL, REJECTED TAKEOFF AT 100 KTS. NO LIGHT IN HANDLES, LIGHTS AND BELL EXTINGUISHED UPON STOPPING. FOUND 9TH BLEED AIR DUCT BLOWN. REPLACED DUCT ASSY PER M/M 36-11-2, OPS CHECKS NORMAL ON ENGINE RUN NR 4, P/N D51P58111-3.