Narrative:

During climb FL310 to FL320 encountered momentary moderate turbulence. Ride was smooth and had been reported smooth by ATC. We were 7-8 mi behind traffic 1000 ft above us and the winds aloft 10-15 KTS out of the south. We did not deviate from our course of altitude. Turbulence was a hard bump and a hard roll left then right. Flight attendant fell and hit the corner of her jumpseat injuring her tail bone. She was in the aft cabin.

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Original NASA ASRS Text

Title: CABIN ATTENDANT IS INJURED WHEN A320 ENCOUNTERS SUSPECTED WAKE TURB DURING CLB FROM FL310 TO FL320 IN DRVSM AIRSPACE.

Narrative: DURING CLB FL310 TO FL320 ENCOUNTERED MOMENTARY MODERATE TURB. RIDE WAS SMOOTH AND HAD BEEN RPTED SMOOTH BY ATC. WE WERE 7-8 MI BEHIND TFC 1000 FT ABOVE US AND THE WINDS ALOFT 10-15 KTS OUT OF THE S. WE DID NOT DEVIATE FROM OUR COURSE OF ALT. TURB WAS A HARD BUMP AND A HARD ROLL L THEN R. FLT ATTENDANT FELL AND HIT THE CORNER OF HER JUMPSEAT INJURING HER TAIL BONE. SHE WAS IN THE AFT CABIN.

Data retrieved from NASA's ASRS site as of January 2009 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.