On Monday, the airplane maker started retro-fitting existing Dreamliners with a new containment system for their lithium-ion batteries. The company is thought to have lost as much as $600 million since the jets were grounded in January, Reuters noted.
The company has dispatched engineering crews to Japan to install the new systems on 787s belonging to All Nippon Airways, which has 17 of the new high-tech jets. Similar installations will be performed on Dreamliners already delivered to United Continental (NYSE:UAL), Air India and Japan Airlines.
The Federal Aviation Administration grounded all 787 Dreamliners after a series of emergency landings that were linked the plane’s lithium-ion batteries.
Boeing began testing the new containment system, which is designed to prevent fires and smoke from batter-overheating last month.
Shares of Boeing fell almost 1% in Monday morning trading.