NYC87FA257

While descending out of flt lvl 270 for lndg, usair flight 10 encountered light to moderate turbulence. Prior to this this encounter, the capt advised all passengers and cabin crew to remain seated and to engage their seatbelts. A similar announcement was made by the cabin attendants. An elderly invalid female passenger stated she had to use to the restroom prior to lndg since her walking device was being shipped and she would not be able to use the facilities at the arpt. The attendants attempted to dissuade her but she prevailed. Two of them helped her to her feet and were in the process of assisting her down the isle when they were all thrown to the floor by inflight turbulence. The passenger sustained two broken bones and other injuries. The flt was given special handling and lndd without further incident.