For the second time in as many days an American Airlines flight had to make an emergency landing at DFW International Airport.
The latest, Flight 1986 to Ontario, Calif., took off from DFW at 10:53 p.m. Monday and was headed back to DFW just eight minutes later after suffering an engine issue.
NBC 5 spoke with American Airlines who confirmed the engine issue, but they haven't been able to determine exactly what happened.
The plane landed safely and was taken out of service for inspection.
Passengers told NBC 5 they experienced some kind of explosion, and then several tense moments until they were safely back on the ground.
"We had our attendant get on and said, something like, 'Well, we obviously blew an engine. We had an engine failure and we're circling back to land at Dallas international.' It was very, very tense. People were very upset and wondering if we were going to make it," said passenger Tom Horne.
Horne and Kelly Maier said their flight from Chicago to DFW, before Flight 1986, also had mechanical issues.
There were 138 people on board the MD-80 aircraft, including five crew members.
On Monday, an American Eagle Flight 3316 made an emergency landing after suffering a hydraulic failure on approach.
On Sunday, American Airlines Flight 963 had to dump fuel and return to DFW after an indicator light suggested an engine fire. Federal investigators are reviewing that incident.
In all three incidents, the planes landed safely and there were no reported injuries.