Narrative:

During cruise at fl 230; we encountered light chop which suddenly became severe turbulence. We were unable to hold altitude and advised ATC. We received a TA and a flight below us received a RA. Fluctuation of airspeed and altitude. Reported to ATC; got a lower altitude.I don't feel like there is anything else I could have done to avoid this.

Google
 

Original NASA ASRS Text

Title: CRJ-700 Captain reported encountering severe turbulence and deviating from assigned altitude; along with a Traffic Advisory on another aircraft.

Narrative: During cruise at FL 230; we encountered light chop which suddenly became severe turbulence. We were unable to hold altitude and advised ATC. We received a TA and a flight below us received a RA. Fluctuation of airspeed and altitude. Reported to ATC; got a lower altitude.I don't feel like there is anything else I could have done to avoid this.

Data retrieved from NASA's ASRS site 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.