ARINC Engineering Services was awarded a contract by Rockwell Collins to install new navigation systems and communications equipment on the nation’s two OC-135B observation aircraft, a highly modified KC-135 airframe used for serial observation flyovers of nations who are signatories to the International Open Skies Treaty. Under this contract, ARINC will initially develop the installation plan and strategy for the OC-135B, then install Rockwell’s Block 40 Global Air Traffic Management (GATM) navigational upgrade kit and additional communications systems. The work will be done at ARINC’s Aircraft Integration and Modification (AIM) facility in Oklahoma City. Traffic Management mandates. Installation is scheduled to start on the first OC-135B in June 2010 and on the second by January 2011.