Boeing (BA) is confident that proposed changes to the 787 Dreamliner will provide a permanent solution to battery problems that grounded its newest jet, a senior executive said on Monday.

It has also made significant progress in pulling together a plan to launch a revamped version of its best-selling 777 wide-body jet, Boeing Commercial Airplanes marketing vice-president Randy Tinseth told a conference of aviation financiers.

Based on a mixed bag of industry indicators, Boeing also sees continued strength in the aircraft market despite uncertainty over the world economy, Tinseth told the International Society of Transport Aircraft Trading.