Narrative:

Top of climb at FL20 on the departure from ZZZ. Flight attendants were seated until about FL230 for WX in the area. Seat belt sign was on. WX radar indicated light rain (green). With no change on the radar hit heavy rain and abrupt moderate turbulence. First officer took control of the airplane which lost about 150 ft and smoothly flew it back on altitude. I announce over the PA for flight attendants to take a seat. Flight attendants X and Y were in their rear jumpseats but not buckled in yet. They left the cart and returned to their jumpseats. They were tossed out of their jumseats. The cart was thrown in the air and soda bins were spilled on the floor. The event lasted no more than a min. They were bruised but reported no other injuries to themselves or any passenger. An in-flight supervisor met the plane. The flight attendants were able to leave the plane themselves. No service was performed on the flight. Ask for and received clearance for a lower altitude. The rest of the flight was uneventful.

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Original NASA ASRS Text

Title: TWO B737 FLT ATTENDANTS WERE INJURED AFTER A B737 ENCOUNTERED TURB AT FL270. THE FLT ATTENDANTS WERE SEATED BUT THEIR SEAT BELTS WERE NOT ON.

Narrative: TOP OF CLB AT FL20 ON THE DEP FROM ZZZ. FLT ATTENDANTS WERE SEATED UNTIL ABOUT FL230 FOR WX IN THE AREA. SEAT BELT SIGN WAS ON. WX RADAR INDICATED LIGHT RAIN (GREEN). WITH NO CHANGE ON THE RADAR HIT HVY RAIN AND ABRUPT MODERATE TURB. FO TOOK CTL OF THE AIRPLANE WHICH LOST ABOUT 150 FT AND SMOOTHLY FLEW IT BACK ON ALT. I ANNOUNCE OVER THE PA FOR FLT ATTENDANTS TO TAKE A SEAT. FLT ATTENDANTS X AND Y WERE IN THEIR REAR JUMPSEATS BUT NOT BUCKLED IN YET. THEY LEFT THE CART AND RETURNED TO THEIR JUMPSEATS. THEY WERE TOSSED OUT OF THEIR JUMSEATS. THE CART WAS THROWN IN THE AIR AND SODA BINS WERE SPILLED ON THE FLOOR. THE EVENT LASTED NO MORE THAN A MIN. THEY WERE BRUISED BUT RPTED NO OTHER INJURIES TO THEMSELVES OR ANY PAX. AN INFLT SUPVR MET THE PLANE. THE FLT ATTENDANTS WERE ABLE TO LEAVE THE PLANE THEMSELVES. NO SVC WAS PERFORMED ON THE FLT. ASK FOR AND RECEIVED CLRNC FOR A LOWER ALT. THE REST OF THE FLT WAS UNEVENTFUL.

Data retrieved from NASA's ASRS site as of May 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.