A flight attendant for Southwest Airlines fractured her spine last month due to a flight's firm landing, according to the National Transportation Safety Board.

The Dallas Morning News first reported the story.

The woman, who was in a jump seat at the back of the plane,"immediately felt pain in her back, neck and she could not move," according to the report. She was transported to the hospital where she was diagnosed with a compression fracture to her T3 vertebra.

The other 141 people aboard were not injured on the flight from Oakland to Santa Ana, California.

"We reported the matter to the NTSB in accordance with regulatory requirements and conducted an internal review of the event," Dallas-based Southwest said Monday in a statement.

The safety board has provided details about its investigation into what caused the hard landing.

The flight attendant said that the plane "landed with such force she thought the plane had crashed," the NTSB said.

"According to the flight crew, they were flying a visual approach to runway 20R at SNA. They were aiming for the touchdown zone due to its short runway and trying to fly the aircraft onto the runway with minimal floating. However, it ended up being a firm landing," the NTSB said.

The Dallas Morning News noted that there was only one other injury aboard a Southwest flight in 2022. It involved a woman passenger who "broke her ankle exiting a bathroom while the plane was cruising."