Eight passengers on Southwest Airlines Flight 1380 are suing the airline after the accident in April that led to rapid cabin depressurization and the death of a passenger.

The passengers filed a lawsuit in New York Supreme Court Tuesday, saying they have suffered physical and mental trauma in the incident's aftermath. The plane was flying from New York to Dallas and made an emergency landing in Philadelphia after its left engine failed and shattered one of the plane's windows.

All of the passengers in the lawsuit say they have experienced vertigo, dizziness and extreme emotional distress, including anxiety, nightmares and fear of flying and loud noises, according to the passengers' lawyer, Jonathan Johnson. The lawsuit claims that Southwest failed to properly maintain the aircraft and CFM56-7B engines.

The airline declined to comment on the pending litigation.

Four of the eight passengers involved in the lawsuit are from Texas. Cindy Arenas of Universal City was on the flight with her two daughters. Arenas said that she has since been diagnosed with PTSD and a ruptured eardrum. Another Texan, Elhadji Cisse, said he has internal ear damage, headaches, dizziness and body soreness as a result of the incident. He has also had nightmares and trouble sleeping.

Johnson some of the passengers are living with "severe consequences."

"They feel like they've had a horrific experience that will stay with them for life," he said. "And another reason we're doing this is to make sure that this doesn't happen to any other passengers on airline flights."

The lawsuit also includes couples from Louisiana and New Mexico. Cassandra Adams, a woman from New Mexico, said she suffered 20 percent permanent hearing loss after the incident.

The passengers are also suing the airplane's manufacturer, Boeing, and engine manufacturers GE Aviation Systems, Safran and CFM International.

Boeing and CFM International declined to comment on the pending litigation. CFM International is a joint company between GE and Safran.

This lawsuit is the second reported suit against Southwest over the flight, as passenger Lilia Chavez filed suit against the airline and CFM International in Pennsylvania in April.

The National Transportation Safety Board is investigating the incident.