Narrative:

On this trip I was working as the #3 and spent most of the time in first class. Approximately 30 minutes before landing; after the fasten seatbelt sign went on; I made my way to the back of the aircraft doing a seatbelt check and picking up garbage. After reaching the back; I entered the aft right side lavatory to wash my hands. Suddenly we encountered turbulence which was immediately severe. As I was tossed about the lavatory for at least a good 20 seconds (hitting my head on the ceiling and right side hip hitting sharply on the sink area) I sat on the lavatory seat and held on waiting for it to subside. When it did somewhat; I quickly made my way to the last row and sat down. At that point I knew I had been hurt; feeling severe pain in the lower back and side. While I was sitting I felt severe pressure on the lower back region as I tried to move up from the seat. The turbulence lasted the rest of the flight. I stayed seated the remainder of the flight and received ice after landing. Paramedics then transported me to the hospital. At no time did the cockpit inform crew and passengers of impending turbulence.

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Original NASA ASRS Text

Title: A B737-800 Flight Attendant's back was apparently injured during descent in a severe turbulence encounter. No warning was given before the encounter.

Narrative: On this trip I was working as the #3 and spent most of the time in first class. Approximately 30 minutes before landing; after the fasten seatbelt sign went on; I made my way to the back of the aircraft doing a seatbelt check and picking up garbage. After reaching the back; I entered the aft right side lavatory to wash my hands. Suddenly we encountered turbulence which was immediately severe. As I was tossed about the lavatory for at least a good 20 seconds (hitting my head on the ceiling and right side hip hitting sharply on the sink area) I sat on the lavatory seat and held on waiting for it to subside. When it did somewhat; I quickly made my way to the last row and sat down. At that point I knew I had been hurt; feeling severe pain in the lower back and side. While I was sitting I felt severe pressure on the lower back region as I tried to move up from the seat. The turbulence lasted the rest of the flight. I stayed seated the remainder of the flight and received ice after landing. Paramedics then transported me to the hospital. At no time did the cockpit inform crew and passengers of impending turbulence.

Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.