The National Transportation Safety Board is investigating an emergency landing at the Chippewa Valley Regional Airport last night.

The Eau Claire Fire Department says Northwest Flight 143 from Chicago to Minneapolis landed just before 9 p.m. It had lost cabin pressure. The plane had more than 100 passengers on it.

The oxygen masks on the plane came down, but nobody needed them below 10,000 feet. The plane was grounded last night while crews worked to figure out the problem. All the passengers got off the plane safely. They were bused to the Twin Cities.
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From Thursday, June 12

A airplane makes an emergency landing at the Chippewa Valley Regional Airport.

The Eau Claire Fire Department tells us a DC-9 Northwest airplane landed just after nine o'clock Thursday night after losing cabin pressure.

The plane had 108 passengers on it. The oxygen masks on the plane did come down, but they weren't needed below 10,000 feet. The plane was grounded while crews tried to figure out the problem. All the passengers are off the plane.

Fire departments from Eau Claire, Altoona, Township and the Chippewa Fire District were all at the scene.

We don't know where the plane was heading or where it was coming from. Battalion Chief Kim Nessel with the Eau Claire Fire Department says the airline was working to figure out accommodations for the passengers.

Watch NewsCenter 13 Sunrise for the latest.