Morrison - Robert Chamberlain, president of the Inter-Canyon Fire Protection District's board, and David Zweigle, manager of the Tehachapi airport were piloting a small, military-type training jet, when the crash occurred at 12:30 p.m. Saturday.
The Federal Aviation Administration and National Transportation Safety Board are investigating.
Chamberlain played a critical role in improving services, equipment and stations.
"He was a loyal supporter of Inter-Canyon Fire/Rescue and our firefighters, serving the citizens of the district," Dave MacBean, Chief of Inter-Canyon Fire/Rescue said in a statement.
"We will sorely miss his sage advice and friendship. We are profoundly stunned at the early passing of a good man. We are providing support to his family," MacBean said.
Chamberlain retired as a United States Air Force Colonel in 1990 and retired as a Captain and Flight Examiner with United Air Lines in 2006. Robert Chamberlain is survived by his wife, children and grandchildren. Memorial services are pending.