http://www.cnn.com/2010/US/07/28/wisconsin.roush.crash/CNN) -- The morning after his private jet crashed at an airport in Oshkosh, Wisconsin, NASCAR team owner Jack Roush remained in serious, but stable, condition at Theda Clark Medical Center in nearby Neenah, Wisconsin, hospital spokeswoman Megan Wilcox said Wednesday.
She said Roush had been brought to Theda Clark, the area's trauma center, and it was "too early" to say how long Roush would remain in the hospital. The hospital was keeping details about Roush's injuries private "at the request of his family and racing team," Wilcox said.
Roush's racing team released a statement saying, "Dr. Kevin Wasco, the attending physician, says that Roush is in serious, but stable, condition. His injuries are not life threatening."
Roush and another passenger, identified as Brenda Strickland of Plymouth, Michigan, were injured Tuesday evening when a Beechcraft Premier jet, registered to Roush Fenway Racing LLC, was landing, according to organizers of an air show that had just ended for the day at Wittman Regional Airport in Oshkosh.
The National Transportation Safety Board and the Winnebago County Sheriff's Department confirmed the identities, the Experimental Aircraft Association said in a statement Tuesday night.
Strickland was brought to Oshkosh's Mercy Medical Center, where she remained in good condition, Mercy spokeswoman Maria Heim said Wednesday.
Video showed Roush and Strickland walking away from the crash, which occurred at 6:15 p.m.
The accident shut down the airport until its regular 8 p.m. closing time, but the airport re-opened Wednesday morning, Experimental Aircraft Association spokesman Dick Knapinski said.
The Experimental Aircraft Association, is sponsoring its popular annual air show, AirVenture 2010, at the airport. Knapinski said Roush comes every year and "does presentations as an airplane enthusiast."
Knapinski said Roush owns one of "probably fewer than 200 airworthy" World War II-era P-51 Mustang fighter planes and Roush had been scheduled to give a presentation about his vintage prop plane Tuesday. Roush had also been slated to appear at the air show Wednesday, signing autographs and talking to NASCAR fans at the Ford tent.
"Roush Fenway Racing is NASCAR's largest team operating eight motorsports teams. Four in the NASCAR Sprint Cup Series with drivers Matt Kenseth, Greg Biffle, Carl Edwards and David Ragan; and four in the Nationwide Series with Edwards, Ricky Stenhouse Jr., Colin Braun, Brian Ickler, and Paul Menard," said the statement from Roush's racing team.
The NTSB is leading the investigation into the accident.