The Boeing Co., Mesa, Arizona, has been awarded a maximum $28,549,900 firm-fixed-price delivery order (ZB45) against an existing contract (SPE4A1-14-G-0007) for rotary rudder helicopter blades. This was a sole-source acquisition using justification 10 U.S. Code 2304 (c)(2) from Federal Acquisition Regulation 6.302-2, which cites an unusual and compelling urgency. Location of performance is Arizona, with a June 15, 2020, performance completion date. Using military service is Army. Type of appropriation is fiscal 2017 through 2019 Army working capital funds. The contracting activity is the Defense Logistics Agency Aviation, Redstone Arsenal, Alabama.