Narrative:

In smooth air at FL340; I turned the seatbelt sign off and made an announcement to the passenger that I realized the sign had been on since takeoff and that I would be turning it off for 10 mins. I also announced that in about 10 mins I was going to have to turn the sign back on and they would have to return to their seats at that time. I also spoke with the lead flight attendant and we discussed service. I told her she could possibly serve drinks to first class. We also discussed that it would not be a good idea for the flight attendants in the back to bring the service cart into the aisle because I was going to turn the sign back on in a short time. I mentioned they could pass out bottles of water if they wished. The flight continued in smooth air for about 10 mins. 70 mi from adyna; I turned the seatbelt sign back on and made an announcement for the passenger to return to their seats. There was a solid layer of cirrus clouds starting prior to adyna. No WX radar returns were indicated on our radar. About 3 mins after I turned the seatbelt sign on; we entered the clouds and experienced a brief encounter of moderate turbulence. The flight then continued on through light turbulence with occasional moderate chop. 1 flight attendant was injured during the initial turbulence. 2 other passenger also reported injuries; one to his tailbone; the other to her elbows and knees. The flight attendant was attended to by a doctor and a nurse. She was 7 weeks pregnant and the doctor stated that the baby was showing no signs of distress. She reported severe pain to her leg near the hip. I contacted our company with a request to have paramedics meet the flight on our arrival. I also passed on information about the flight attendant as well as the other 2 passenger.

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Original NASA ASRS Text

Title: DESPITE REPEATED ADMONITIONS FROM THE CAPT ABOUT EXPECTED TURB AND DESPITE THE SEATBELT SIGN BEING ON; 1 CABIN ATTENDANT AND 2 PAX ARE INJURED ABOARD B737-800 NEAR ADYNA INTXN.

Narrative: IN SMOOTH AIR AT FL340; I TURNED THE SEATBELT SIGN OFF AND MADE AN ANNOUNCEMENT TO THE PAX THAT I REALIZED THE SIGN HAD BEEN ON SINCE TKOF AND THAT I WOULD BE TURNING IT OFF FOR 10 MINS. I ALSO ANNOUNCED THAT IN ABOUT 10 MINS I WAS GOING TO HAVE TO TURN THE SIGN BACK ON AND THEY WOULD HAVE TO RETURN TO THEIR SEATS AT THAT TIME. I ALSO SPOKE WITH THE LEAD FLT ATTENDANT AND WE DISCUSSED SVC. I TOLD HER SHE COULD POSSIBLY SERVE DRINKS TO FIRST CLASS. WE ALSO DISCUSSED THAT IT WOULD NOT BE A GOOD IDEA FOR THE FLT ATTENDANTS IN THE BACK TO BRING THE SVC CART INTO THE AISLE BECAUSE I WAS GOING TO TURN THE SIGN BACK ON IN A SHORT TIME. I MENTIONED THEY COULD PASS OUT BOTTLES OF WATER IF THEY WISHED. THE FLT CONTINUED IN SMOOTH AIR FOR ABOUT 10 MINS. 70 MI FROM ADYNA; I TURNED THE SEATBELT SIGN BACK ON AND MADE AN ANNOUNCEMENT FOR THE PAX TO RETURN TO THEIR SEATS. THERE WAS A SOLID LAYER OF CIRRUS CLOUDS STARTING PRIOR TO ADYNA. NO WX RADAR RETURNS WERE INDICATED ON OUR RADAR. ABOUT 3 MINS AFTER I TURNED THE SEATBELT SIGN ON; WE ENTERED THE CLOUDS AND EXPERIENCED A BRIEF ENCOUNTER OF MODERATE TURB. THE FLT THEN CONTINUED ON THROUGH LIGHT TURB WITH OCCASIONAL MODERATE CHOP. 1 FLT ATTENDANT WAS INJURED DURING THE INITIAL TURB. 2 OTHER PAX ALSO RPTED INJURIES; ONE TO HIS TAILBONE; THE OTHER TO HER ELBOWS AND KNEES. THE FLT ATTENDANT WAS ATTENDED TO BY A DOCTOR AND A NURSE. SHE WAS 7 WKS PREGNANT AND THE DOCTOR STATED THAT THE BABY WAS SHOWING NO SIGNS OF DISTRESS. SHE RPTED SEVERE PAIN TO HER LEG NEAR THE HIP. I CONTACTED OUR COMPANY WITH A REQUEST TO HAVE PARAMEDICS MEET THE FLT ON OUR ARR. I ALSO PASSED ON INFO ABOUT THE FLT ATTENDANT AS WELL AS THE OTHER 2 PAX.

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.