Robertson Fuel Systems L.L.C., Tempe, Ariz., is being awarded a $7,073,997 modification to a previously awarded firm-fixed-price contract (N00019-12-C-0097) to exercise the option for the procurement of 15 CV-22 Mission Auxiliary Fuel Tank Systems (MATS) and associated equipment required to support squadron stand-ups.  Work will be performed in Tempe, Ariz., and is expected to be completed in April 2014.  Contract funds in the amount of $7,073,997 are being obligated on this award, all of which will expire at the end of the current fiscal year.  The applicable contract funds are fiscal year 2011 Aircraft Procurement, Air Force.  The Naval Air Systems Command, Patuxent River, Md., is the contracting activity.