On November 7, 1995, about 1456 central standard time, N312DL, a Boeing 737-200 operated by Delta Airlines as a 14 CFR Part 121 scheduled domestic passenger flight from Dallas, Texas, to Pensacola, Florida, as flight 1808, encountered turbulence on descent to Pensacola. Instrument meteorological conditions prevailed at the time and an IFR flight plan was filed. The airplane was not damaged and one passenger received serious injuries. The crew of 5 and the remaining 53 passengers were not injured. The flight originated from Dallas, about 1344 the same day. The crew stated they were descending from 18,000 feet to 10,000 feet with the seatbelt sign illuminated and an announcement to utilize the seatbelts was made, when they encountered a short incident of turbulence. One passenger was standing in the aisle near the rear lavatory, and was thrown into the rear galley, breaking his leg.