boeing 787 dreamliner to return to service - home battery system

WASHINGTON —
Federal officials intend to cancel the order to shut down the troubled 787 Dreamliner after accepting Boeing's improved battery system, although the root cause of a fire on one aircraft and a battery failure on another aircraft smoking is unknown.
The Federal Aviation Administration said on Friday that it will issue instructions to airlines next week and issue a notice to cancel threemonth-
The old grounding sheet of that day
Then Boeing will start.
Began to transform the aircraft using an enhanced lithium ion battery system.
The agency told lawmakers that the dream flight could resume within a week.
Boeing says it has started installing fixes in teams around the world.
Last month, the Federal Aviation Administration allowed Boeing to test the improved system. This includes additional insulation around each of the eight batteries of the battery to prevent one of them from short-circuit or catching fire.
The new system also includes enhanced smoke and gas emissions from the inside of the battery to the outside of the aircraft.
The battery-mounted reinforcement box is designed to ensure that it does not escape to the rest of the aircraft in the event of a fire.
Boeing has completed 20 sep accelerated tests of the new system, the agency's chief executive Michael Huerta told Congress earlier this week.
On January, a fire broke out on a Japanese Airlines 787 aircraft parked at Boston Logan International Airport, and Boeing delivered 50 aircraft to eight airlines in seven countries. 7.
Nine days later, the second accident led to an emergency landing of 787 airlines in Japan, with the FAA and other authorities shutting down the entire fleet.
Boeing says new batteries and kits for the new battery system are ready for immediate delivery.
Boeing said the 787 will be fixed according to the order they delivered.
Ray Connor, head of Boeing, said: "The Boeing team is ready to help 787 of our customers return to the air that belongs to them . "
Commercial aircraft department.
The ground also stopped 787 deliveries.
Boeing said it expects them to resume production "in the next few weeks" after they installed the changes on the planes of the two factories that assembled the changes.
It still expects to reach a target of at least 60 787 this year, and the battery issue "will not have a significant impact on its financial guidance this year," the company said.
The actions of the Federal Aviation Administration directly affect the only United Airlines in the United States. S.
An airline with a fleet of 787.
But aviation authorities in other countries are also expected to follow suit quickly.
United Airlines has scheduled 787 domestic flights for May 31.
Spokesman Christen David said there are no other changes to the schedule.
Denver press conferenceto-
The Tokyo Narita flight is still scheduled to take off on June 10, she said, but it will depend on the installation of battery fixes at that time.
"We are working on a return plan --to-
The service plan, we are looking forward to getting our 787 back in the air, "she said in an email.
Polish airline spokesman Marek Klucinski noted that they needed permission from the European Aviation Safety Agency to resume their flights.
He said they want Friday's decision to mean they can resume their flights by mid-week.
Rhodes has two planes, one in Warsaw and the other stranded in Chicago.
The Boeing 787 is the latest and most advanced aircraft for Boeing.
This is the first passenger plane in the world mainly made of lightweight composite materials.
It also relies more on electronic systems than any other passenger aircraft, rather than hydraulic or mechanical systems.
This is the first aircraft to use lithium-ion batteries extensively, and lithium-ion batteries are lighter, faster to charge, and more energy than other types of batteries.
Boeing has told customers that the aircraft is 20 more fuel efficient than other mid-range models. The size of the plane.
This is a big selling point, because fuel is the biggest cost for the plane to stop flying in January.
16, a huge black eye for Boeing, marking the first time since 1979 that the Federal Aviation Administration has ordered every particular type of aircraft to stay out of the air for security reasons.
UBS analyst David Strauss predicted last month that the Boeing 787 would cost $6 billion this year.
In addition to the battery problem, the manufacturing cost of the aircraft has exceeded the cost of the customer.
Manchester United have six Dreamliners and 44 more orders.
S. and Delta also ordered 787.
Boeing has ordered more than 800 aircraft from airlines around the world.
787 has two identical lithium-
Ion batteries, one of which is located at the front of the aircraft, provide power to the cockpit electrical system, and the other is oriented towards the rear, used to start the auxiliary power unit when the aircraft is on the ground, as well as other functions.
It was the back battery that caught fire and smoked on a Boston plane and recently landed after an overseas flight.
In Japan, another battery on the plane failed.
Every item that is part of an aircraft, whether it is a nut or a bolt, must be safely certified before the Federal Aviation Administration approves the safe flight of this type of aircraft.
The two incidents raised questions about why the agency and Boeing did not find battery problems until the agency certified the aircraft to fly safely in 2011.
In recent years, the agency has relied more on designated employees of aircraft manufacturers to carry out the safety tests required for certification.
Some aviation safety experts question whether the airline has
Expertise in supervising cutting safety
There was no edge technology on the plane before.
Lithium batteries are more likely to experience uncontrolled high temperatures that can cause fires if they are damaged, exposed to overheating, overcharging, or have manufacturing defects.
Despite the safety risks, they are increasingly attractive to aircraft manufacturers as a way to reduce weight and thus improve fuel efficiency.
The National Transportation Safety Board is investigating the Boston battery fire and the process by which the agency certified 78 7 battery safety.
The board has arranged twice.
Officials from the FAA and Boeing will testify at a hearing starting Tuesday.
Transportation Safety Board officials said the Boston battery fire started with a short circuit of one of the eight batteries of the battery, causing the temperature to get out of control and short circuit
The circuit in the remaining battery of the battery.
The firefighters who responded to the incident reported that there was smoke outside the box containing batteries and two small fires.