The US Air Force is to request revised proposals for the CSAR-X combat search-and-rescue programme after the Government Accountability Office denied all additional arguments raised by Lockheed Martin and Sikorsky in their protest against the selection of the Boeing HH-47.

The USAF says it will amend the request for proposals to clarify how operation and support costs will be evaluated, and request revised bids.

This will comply with the GAO's recommendation to re-open the competition, but limit consideration of revised proposals to the life-cycle cost issue.

"If the evaluation of the revised proposals results in a change to the CSAR-X best value source selection, the air force will make any necessary changes in the contract award decision," the service said in a statement.

Boeing says it is prepared to support the USAF's decision on how to proceed.

Source: Flight International