The National Transportation Safety Board (NTSB) released its preliminary report on the fatal Schoharie limousine crash on Monday.

The NTSB says the report is preliminary and will be updated or corrected as it continues the investigation.

The preliminary report reviews the sequence of events prior, during, and after the crash. It also covers some of its findings and where the investigation stands.

According to the report, the original 137-inch-long wheelbase for the 2001 Ford Excursion had been lengthened by 180 inches to increase the seating capacity. The NTSB says the 18 additional non-original equipment manufacturer seats were equipped with lap belts and oriented passengers away from traditional front-facing seating configuration. 

Additional, the report says the vehicle’s increased passenger capacity required the passenger-carrying limo to be regulated by the New York State Department of Transportation.

The NTSB says it is continuing to gather information on the modifications and mechanical condition of the vehicle, the seat belt usage and survivability of the passengers, and the oversight of the passenger-carrying operation by the New York State Department of Transportation and the New York State Department of Motor Vehicles.

Nauman Hussain, the operator of Prestige Limousine, has been charged in connection to the tragic crash that killed 20 people in Schoharie.

All aspects of the Schoharie crash remain under investigation.