NEW YORK (Reuters) - United Technologies Corp's <UTX.N> chief executive said on Friday that the company has a buildup in inventory of Pratt & Whitney aircraft engines and that hitting its cash flow targets in 2016 "depends on getting engines out the door."

Chief Executive Officer Greg Hayes' comments come after Bombardier Inc <BBDb.TO> earlier this month cut its forecast for deliveries of CSeries aircraft because of delays in getting Pratt engines.

(Reporting by Alwyn Scott)