NEW YORK (AP) — Boeing will resume flight tests of its long-delayed 787 jet on Thursday, six weeks after they were suspended because of an in-flight electrical fire in the plane’s power distribution system.

The company says it installed an updated, interim version of the software that controls the system in the first of six test flight aircraft.

Continental Airlines, now part of United-Continental Holdings Inc., was to be the first U.S. carrier to fly a 787 and planned to begin flights between Houston and Auckland, New Zealand, in November 2011. Those are now set for 2012.