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WAAS Updates Approved for Classic Cessna Citation Ultras, Encores


WICHITA, Kan., — Cessna Aircraft Company, a Textron Inc. (NYSE: TXT) company, announced today that Wide Area Augmentation System upgrades are available for the Citation Ultra and Citation Encore.

The supplemental type certificate covers all Citation Ultras and Citation Encores serial number 260 through 750 with an upgrade to dual Universal UNS-1Espw Flight Management Systems certified for fully coupled WAAS LPV approaches. Previous WAAS updates were approved for CJ1+, CJ2+, CJ3 and Citation Encore+ models, as well as Citation Excel and XLS aircraft.

The WAAS upgrades can be performed at any of the nine Cessna-owned Citation Service Centers in North America and Europe, according to Stan Younger, Cessna’s vice president of Service Facilities. Owners may contact any of the centers to confirm their avionics suite is WAAS-compatible and to schedule an appointment.

“WAAS technology augments GPS systems and gives pilots five times the coverage and 12 times the accuracy of GPS-only systems,” Younger says. “This new after-market capability for our classic Citations also demonstrates the company’s commitment to the on-going success of Citation owners and operators for years to come.”

WAAS gives pilots improved Global Positioning System navigation accuracy, allowing for greater access to many airports during difficult weather conditions. WAAS LPV approaches are similar to ILS performance; with some LPV (localizer performance with vertical guidance) procedures having minimums as low as 200 feet.

Cessna is the world’s leading general aviation company. Since its inception in 1927, Cessna has designed, produced and delivered more than 192,500 airplanes around the globe. This includes more than 6,100 Citation business jets, making it the largest fleet of business jets in the world. Today, Cessna has two principal lines of business: aircraft sales and aftermarket services. Aircraft sales include Citation business jets, Caravan single-engine utility turboprops, single-engine piston aircraft and lift solutions by CitationAir. Aftermarket services include parts, maintenance, inspection and repair services. In 2010, Cessna delivered 535 aircraft, including 179 Citation business jets, and reported revenues of $2.6 billion. More information about Cessna Aircraft Company is available at

Textron Inc. is a multi-industry company that leverages its global network of aircraft, defense, industrial and finance businesses to provide customers with innovative solutions and services. Textron is known around the world for its powerful brands such as Bell Helicopter, Cessna Aircraft Company, Jacobsen, Kautex, Lycoming, E-Z-GO, Greenlee, and Textron Systems. More information is available at


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