Narrative:

40 NM north of thunderstorms, we were in cirrus clouds. Without warning we encountered severe turbulence at FL270. Our WX radar was on, and painting the WX to the south of our course. There was frozen rain hitting the windscreen during the turbulence. No aircraft ahead or behind us encountered the turbulence. It lasted no more than 20 seconds. The seat belt sign was on, but the flight attendants were serving. No reported passenger injuries. 1 flight attendant fell to the floor.

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Original NASA ASRS Text

Title: FLT ATTENDANT INJURY WHEN ACR MLG ACFT ENCOUNTERED TSTM HVY TURB.

Narrative: 40 NM N OF TSTMS, WE WERE IN CIRRUS CLOUDS. WITHOUT WARNING WE ENCOUNTERED SEVERE TURB AT FL270. OUR WX RADAR WAS ON, AND PAINTING THE WX TO THE S OF OUR COURSE. THERE WAS FROZEN RAIN HITTING THE WINDSCREEN DURING THE TURB. NO ACFT AHEAD OR BEHIND US ENCOUNTERED THE TURB. IT LASTED NO MORE THAN 20 SECONDS. THE SEAT BELT SIGN WAS ON, BUT THE FLT ATTENDANTS WERE SERVING. NO RPTED PAX INJURIES. 1 FLT ATTENDANT FELL TO THE FLOOR.

Data retrieved from NASA's ASRS site as of July 2007 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.