COLUMBUS, Ohio (WCMH) — Three engine warnings occurred about a minute before a plane coming from the Ohio State University Airport crashed onto a highway in Naples, Florida, killing a pilot and co-pilot and injuring several passengers, according to a preliminary report by the National Transportation Safety Board.

The plane, a Bombardier Challenger 600 operated by HopAJet, crashed about six miles from Naples Municipal Airport on Feb. 9 with three passengers and two pilots onboard. A preliminary report released Tuesday by the NTSB showed that the plane emitted three warnings about the engines, two of which related to oil pressure, seconds before the pilot reported double engine failure and subsequently crashed onto Interstate 75.

The pilot, 50-year-old Edward Murphy from Oakland Park, Fla., had accrued more than 10,500 hours of flight experience, while co-pilot and 65-year-old Ian Hofmann from Pompano Beach, Fla., had accrued nearly 25,000 flight hours, according to the report. Both had experience flying the Bombardier Challenger 600.

The crew was cleared for landing by the Naples airport’s air traffic controller at 3:08 p.m. About a minute later, according to the plane’s flight data recorder, the plane’s system warned of an issue with the left engine’s oil pressure. One second later, an issue with the right engine’s oil pressure was recorded. Within seconds, the plane emitted a third engine warning.

About 20 seconds later, the pilot told air traffic control that it lost both engines and was making an emergency landing. The controller cleared the airplane to land.

“We are not going to make the runway,” one of the pilots said, the last transmission from the plane. “We have lost both engines.”

AirNav RadarBox flight tracking shows the path the jet took before the crash. As it approached Naples Airport flying east, the pilot veered slightly north before curving back south over Interstate 75.

The NTSB reviewed dashcam footage it received from a driver in the area of the crash. It showed the plane touch down into traffic on I-75 before crashing into a concrete sound barrier, engulfed in flames and smoke.

Neither engine appeared to have anomalies, according to the NTSB report. Main fuel pumps, fuel injectors and fuel filter bowls also appeared in working order. One fuel sample from the right fuel filter bowl had a “yellowish tint,” while all other fuel samples appeared normal. About a half ounce of water was recovered from the tail fuel tank.

The NTSB will continue to investigate the crash and release a final report, a process that can take one to two years.