What was found
(CAN) DURING TAKEOFF, FAN ANNULUS FILLER RELEASED. LOUD BANK WAS HEARD WITH REPORTED TAIL PIPE FLAME. TAKEOFF ABORTED AND FIRE BOTTLES DISCHARGED. AIRCRAFT TOWED BACK TO GATE. PRELIMINARY REPORT INDICATES FILLER BETWEEN 4 AND 5 FAN BLADES FAILED PENETRATING FAN CASE EXPOSING FILLER WRAP BEFORE EXITING THE TAIL PIPE. NR 8 FILLER MISSING AND NR 9 FILLER DISPLACED. BALANCE OF FILLERS FOUND SATISFACTORY. FAN BLADES HAD SUSTAINED SOME SECONDARY DAMAGE. SOME COMPRESSOR BLADE DISTRESS. FURTHER REPORT TO FOLLOW.