787

Boeing has sought approval from US regulators to conduct test flights of its 787 Dreamliner as part of its efforts to investigate the reasons behind recent battery failures in the aircraft.

Boeing has submitted the application to Federal Aviation Administration (FAA), which is currently under evaluation.

"Boeing believes that the test flights could allow it to study Dreamliner’s lithium-ion power packs and assist regulators in finding out the cause of the battery failures."

The aeroplane manufacturer believes that the test flights could allow it to study Dreamliner’s lithium-ion power packs and assist regulators in finding out the cause of the battery failures.

However, Japanese regulators investigating the issue have announced that the battery failure on the All Nippon Airways’ 787 was due to thermal runaway, a chemical reaction that takes place inside the equipment at high temperatures.

On 16 January, FAA grounded all 50 787s in-service worldwide after battery problems caused Japan’s ANA jet to make an emergency landing.

The Dreamliner has been affected by several safety incidents this year, including a crack in the window on the pilot’s side of the cockpit, an oil leak from a generator inside an engine, a brake problem, fuel spillage and an electrical problem that led to fire onboard an aircraft.

Last month, Boeing suspended deliveries of 787s until all battery issues were resolved. However, the company also announced that it would continue with the production of the aircraft.

Made primarily of carbon composites, the lighter weight 787 features improved aerodynamics and advanced engine technology. According to Boeing, it uses 20% less fuel compared with rival aircraft in the segment.

To date, Boeing has received around 800 firm orders for 787 Dreamliners.

Image: Boeing 787 Dreamliners have been affected by several safety incidents this year. Photo: courtesy of Boeing.

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