The plane, built in 1964, crashed into a ridge about 4:30 p.m. Thursday in a heavily wooded part of the Ouachita National Forest about 45 miles northwest of Little Rock, Ark., in the Winona Wildlife Management Area. The plane was en route to Little Rock so Budke and Serna could watch basketball games as part of a recruiting trip.
The NTSB typically releases a preliminary report on plane crashes within about a week, but a full report can take a year or more.
Perry County sheriff's deputies also were a part of the crash site cleanup Saturday, a dispatcher said.
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AT A GLANCE
• A memorial service for the four victims is set for 1 p.m. Monday at Gallagher-Iba Arena on the OSU campus in Stillwater, where Kurt Budke's Cowgirls play their home games.
• Funeral services for Olin and Paula Branstetter are scheduled for 2 p.m. Tuesday at the Assembly of God in Ponca City under the direction of Trout Funeral Home.