Boeing (BA) yesterday completed an "uneventful" test flight of its 787 as it collected data on the aircraft's battery. Also: 1) IAG CEO Willie Walsh reckons it will take several months for Boeing to change the Dreamliner's battery system. IAG is still "committed" to its 787 bookings. 2) Boeing has told customers it may have to delay Dreamliner deliveries. 3) Emirates expects that a revamped 777 will be available in 6-9 months.