Senate authorizers this week released legislation that urges the Air Force to lower the cost of F-22 Raptor sustainment and requires the Air Force to periodically report the costs of the F-22 fleet's upgrade as a standalone major defense acquisition program. Also this week, the service awarded prime contractor Lockheed Martin the first of three planned contracts to retrofit the F-22 with an automatic backup oxygen system, a response to the Air Force's ongoing examination of the Raptor's oxygen generation...