Press Release

Issued by Pratt & Whitney Canada.

May 4, 2010

Pratt & Whitney Canada (P&WC) today celebrated the delivery of its 500th PW308C turbofan engine to France's Dassault Aviation, a major player in the mid- to large-size business aircraft market. Pratt & Whitney Canada is a United Technologies Corp. (NYSE: UTX) company.

Pratt & Whitney Canada held a special ceremony during the 10th annual European Business Aviation Convention and Exhibition (EBACE) in Geneva, Switzerland, to honour the milestone delivery, reached in March 2010. "This is a tremendous achievement and attests to the success of the PW308C-powered Falcon 2000DX/EX/LX business jet," said Michael Perodeau, Vice President, Corporate Aviation and Military Programs, P&WC. "This delivery also underscores the close relationship that has developed between Pratt & Whitney Canada and Dassault Aviation over the past decade and resulted in bringing high-performance and fuel-efficient products to market."

Dassault Aviation selected the PW308C for the Falcon 2000EX jet in 1999 and later picked the PW307A to power its Falcon 7X three-engine business jet, marking the extension of a growing business collaboration between the company and P&WC.

The PW308C, a member of the popular PW300 family of engines, is rated at 7,000lbs thrust (ISA + 23C) and has accumulated more than 550,000 flight hours in service on the Falcon fleet. The PW300 engine family today powers 1,321 business jets in 71 countries and has accumulated a total of 8.5 million flight hours.