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PRESS RELEASE

First PurePower® PW1200G Engine Concludes Ground Testing

WEST PALM BEACH, Fla., Monday, October 3, 2011

Ground testing of Pratt & Whitney's first PW1200G family engine – the PW1217G engine for the Mitsubishi Regional Jet (MRJ) – recently concluded. The engine, the first of an eight-engine validation and certification program, completed more than 300 hours and 1,100 cycles. Pratt & Whitney is a United Technologies Corp. (NYSE:UTX) company.

"We have successfully validated the overall design of the PW1200G engine since starting our test program in April. After completing airfoil stress measurements, we conducted testing to confirm performance, noise and emissions." said Bob Saia, vice president, Next Generation Product Family. "We are very pleased with these initial test results demonstrating that the design is on track to meet our commitments to Mitsubishi. This engine also ran cyclic endurance testing just prior to returning to our Connecticut facility for inspection and re-build for its next test program."

The PW1217G engine test program will run a total of eight test engines through 2012 leading up to aircraft first flight. Entry into service is scheduled for 2014.

The PurePower family of engines is designed to power the next generation of passenger aircraft. The combination of its gear system and advanced core allows PurePower engines to deliver double-digit improvements in fuel efficiency and emissions with a 50-percent reduction in noise over today's engines.

The PurePower engine also has been selected as exclusive power for the Bombardier*CSeries* aircraft scheduled to enter service in 2013 and to power the Airbus A320neo aircraft family powering the first A320neo aircraft scheduled to enter service in 2015, as well as the Irkut MC-21 narrow-body jet scheduled to enter service in 2016.

Pratt & Whitney is a world leader in the design, manufacture and service of aircraft engines, space propulsion systems and industrial gas turbines. United Technologies, based in Hartford, Conn., is a diversified company providing high technology products and services to the global aerospace and building industries.

This release includes "forward looking statements" concerning anticipated business opportunities that are subject to risks and uncertainties, including with regard to the programs described in this release. Important factors that could cause actual results to differ materially from those anticipated or implied in forward looking statements include the impact of deterioration or extended weakness in global economic conditions on demand for our products and services, the financial strength of customers and suppliers and on levels of air travel; and challenges in the design, development, production and support of advanced technologies and new products and services. For information identifying other important economic, political, regulatory, legal, technological, competitive and other uncertainties, see UTC's 10-K, 10-Q and other reports filed with the SEC.

* Trademarks of Bombardier Inc. or its subsidiaries.

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