US regulators have ordered a review of the 787 Dreamliner plane after a series of incidents put a question mark over the safety of Boeing’s flagship plane.
The review by the Federal Aviation Administration will look at the design and manufacture of the planes.
It is not clear whether the planes in the air at the moment will be grounded.
An electrical fire, a brake problem, a fuel spill and cracks in the cockpit’s windshield have affected Dreamliner flights in the past week.
The Boeing 787 Dreamliner is one of the most advanced aeroplanes ever created. Much of it is made from very strong, light carbon-fibre composite material.
However, a spate of technical issues has hurt its image. On Friday, two new problems were found, adding to Boeing’s woes.
- On Friday, All Nippon Airways reported a crack in the window on the pilot’s side of the cockpit. It caused no problems for the 237 passengers and nine crew on a flight from Tokyo’s Haneda airport to Matsuyama, but the return flight was cancelled
- The same airline said another Dreamliner flight, shuttling between Haneda and the southern Miyazaki prefecture, experienced a delay due to an oil leak from a generator inside an engine
- On Wednesday, ANA cancelled a 787 flight from Yamaguchi to Tokyo because of a brake problem
- On Tuesday, Japan Airlines cancelled a Boston to Tokyo flight after about 40 gallons (151 litres) of fuel spilled
- An electrical fire broke out on board a Japan Airlines Dreamliner on Monday shortly after it landed in Boston, following a flight from Tokyo
- Last year, a United Airlines flight was forced to make an emergency landing because of an electrical problem
- In December, Qatar Airways grounded one of its 787 Dreamliners after several manufacturing faults caused electrical problems similar to those that affected the United plane.
Last month, the head of Qatar Airways criticised Boeing in an interview with the BBC over several manufacturing faults that have resulted in the grounding of one of its three 787 Dreamliner aircraft.