EAST HARTFORD, Conn., June 13, 2013 /PRNewswire/ -- Pratt & Whitney today appointed David Brantner, 46, president, Pratt & Whitney Commercial Engines, and Matthew Bromberg, 43, president, Pratt & Whitney Aftermarket, both reporting to Paul Adams, chief operating officer. Brantner and Bromberg succeed Todd Kallman who announced his intent to retire from UTC. Brantner, Bromberg and Kallman will ensure an effective transition through the end of September. Pratt & Whitney is a division of United Technologies Corp. (NYSE: UTX). "We have achieved great success in recent years in the commercial engine segment, winning five new platforms and multiple sales campaigns," said Pratt & Whitney President David Hess. "With more than 3,500 firm and optional orders for our PurePower ® engines, our technology is transforming commercial aviation. As a result, we are working to meet a record number of program milestones and achieve on-time entry into service." "Simultaneously, the aftermarket segment is increasingly competitive and rapidly changing. Pratt & Whitney has a unique opportunity to build on the strength of its global aftermarket network to respond to evolving market forces," Hess said. Brantner will lead all Commercial Engines program management, sales and marketing activities. He and his team will support airlines and OEM aircraft manufacturers with the company's renewed portfolio of Pratt & Whitney and IAE engines. In particular, the Commercial Engines team will continue to deliver on program targets and market our new family of PurePower Geared Turbofan™ engines. Bromberg will lead a dedicated aftermarket organization. This new entity will consolidate commercial aftermarket sales, operations, materials management, customer service, fleet management programs and in-service fleet support. It will leverage Pratt & Whitney's unique aftermarket expertise and global service network to achieve synergies and drive standardization. "These efficiencies will ultimately benefit our customers," Hess said.