What was found
AT 25,000 FT A BANG SOUND WAS HEARD FOLLOWED BY A 2.2 VIB ON RT ENGINE. MAINTENANCE REPLACED TWO SETS OF DAMAGED FAN BLADES ON RT ENGINE. IT IS PROBABLE THAT THIS FOD WAS CAUSED BY ICE FROM THE GALLEY WATER DRAIN MAST.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AT 25,000 FT A BANG SOUND WAS HEARD FOLLOWED BY A 2.2 VIB ON RT ENGINE. MAINTENANCE REPLACED TWO SETS OF DAMAGED FAN BLADES ON RT ENGINE. IT IS PROBABLE THAT THIS FOD WAS CAUSED BY ICE FROM THE GALLEY WATER DRAIN MAST.