Pratt MRO Business Today 22:50 Pratt & Whitney, S7 Airlines sign 12-Year EngineWise Fleet Management Agreement Pratt & Whitney, a world leader in the design, manufacture and service of aircraft engines and auxiliary power units has signed an agreement with S7 Airlines for a 12-year Pratt & Whitney EngineWise Fleet Management Program. Share this Share on FacebookTweet on TwitterPlus on Google+