The National Transportation Safety Board has begun investigating the two deadly plane crashes in South Dakota that happened during the government shutdown. 

Investigators are looking into deadly plane crash that happened in Sioux Falls on Christmas Day.  The agency says due to the backlog it could take a month to get a preliminary report. They normally take two weeks.

Investigators just wrapped up a preliminary report on the January plane crash in rural McCook County. We’re going through it right now and will have more details later Monday on KELOLAND News. 

The head of the NTSB says the shutdown may have lost life-saving information in investigating the plane crashes like the two in South Dakota. 

“Since our investigations result in safety recommendations designed to correct deficiencies noted in the investigation, honestly, I worry that due to the government shutdown related delay in our getting on scene, we may have lost potential life-saving information,” NTSB Chairman Robert Sumwalt said. 

The NTSB tells KELOLAND News it will rely on local law enforcement notes from the scene.