On September 4, 2017 at about1531 central daylight time, Delta Air Lines flight 2121, a Boeing MD-90, N938DN, encountered turbulence during final approach into El Paso International Airport (ELP), El Paso, Texas. Of the 143 passengers and crew onboard, one flight attendant sustained serious injuries. The flight was operating under 14 CFR Part 121 as a regularly scheduled passenger flight from Atlanta Hartsfield-Jackson International Airport (ATL), Atlanta, Georgia, to ELP.

According to the operator, while on approach the flight crew completed the cabin notification and turned the seatbelt sign on. While one of the flight attendants was performing final safety checks and walking to her jumpseat, the airplane encountered turbulence, resulting in the flight attendant hitting her head on the overhead bin. The flight attendant continued to her seat for the remainder of the approach and landing. The flight crew was notified of the event during taxi and they requested paramedics meet the flight at the gate. The flight attendant was transported to the hospital where she was diagnosed with head injuries and admitted for observation.