Archives June 2021

Sunday, January 13, 2013

The United States Federal Aviation Administration (FAA) ordered a review Friday into the design and manufacture of the Boeing 787 Dreamliner, following five incidents in five days involving the aircraft and two Japanese airlines.

On Monday, an electrical fire broke out aboard a Japan Airlines 787 at Boston’s Logan International Airport, when a battery pack which powers the auxiliary power unit, for when the plane is on the ground, caught fire. The fire was discovered by maintenance workers after passengers and crew disembarked following their flight from Tokyo’s Narita Airport.

The next day, a separate Japan Airlines 787, also at Logan International Airport, heading to Tokyo, suffered a fuel leak that spilled around 40 gallons, which was spotted by the crew of the aircraft taxiing behind them. “That Japan Air may know it, but they’ve got fuel or something spilling out the outboard left wing. Quite a bit,” said the pilot of aircraft behind them on local air traffic control frequencies.

Wednesday, in Japan, an All Nippon Airways 787, the launch customer for the aircraft, cancelled a flight after a brake problem was reported.

Earlier Friday, two All Nippon Airways suffered separate incidents in Japan. An oil leak was noticed in the engine after one aircraft had landed in Miyazaki, coming from Tokyo’s Haneda Airport. Another flight, flying between Haneda Airport and Matsuyama said the pilot’s side window in the cockpit suffered a crack.

The FAA in a statement said “In light of a series of recent events, the FAA will conduct a comprehensive review of the Boeing 787 critical systems, including the design, manufacture and assembly.” Further adding, “The purpose of the review is to validate the work conducted during the certification process and further ensure that the aircraft meets the FAA’s high level of safety.”

According to the statement, “The review will also examine how the electrical and mechanical systems interact with each other.” The Boeing 787 relies more on electrical, as opposed to mechanical, systems than past aircraft from the manufacturer including having electronics operate hydraulic pumps and using electric brakes. Large portions of the plane’s structure use lightweight carbon fiber composite instead of more traditional metal airframe.

U.S. Transportation Secretary Ray LaHood said, “The safety of the traveling public is our top priority […] This review will help us look at the root causes and do everything we can to safeguard against similar events in the future.”

“We are confident that the aircraft is safe. But we need to have a complete understanding of what is happening,” said newly sworn-in FAA Administrator Michael P. Huerta. “We are conducting the review to further ensure that the aircraft meets our high safety standards.”

Boeing released a statement saying, “[The company] is confident in the design and performance of the 787. It is a safe and efficient airplane. The airplane has logged 50,000 hours of flight and there are more than 150 flights occurring daily.”

Saturday, September 1, 2012

London, England — Yesterday Wikinews had the opportunity to tour the Ottobrock wheelchair repair workshops at the Paralympic Village in London.

It is one of a network of workshops at every Paralympic venue. They are run by Ottobrock, which has been repairing wheelchairs at the Paralympics since 1988. The workshop opened on August 22 and will remain until September 10.

The Ottobrock employees include people from 20 countries. Between them, they speak 23 languages. They liken themselves to the pit crew of motor sport — except that they have no idea what sort of equipment they will have to work with. The store room contains 15,000 spare parts, with everything from spare carbon fibre running blades to spare tyres — over 2,000 of them. They stock Ottobrock parts and their competitors’ too, as they have no idea what will arrive at the workshop next. Athletes from around the world bring in all manner of equipment.

The prosthetic technicians have to deal with everything from flat tyres to broken spokes to full-scale rebuilds. They have to be expert problem solvers. They frequently collaborate on determining how best to effect a repair. The objective is to get the wheelchair repaired and back in service as soon as possible.

Wheelchairs vary somewhat in design, depending on the sport. Those for wheelchair basketball and rugby have cambered wheels so they can spin around. Aluminum and titanium parts are used for strength. Ottobrock has a welding workshop where frames are repaired; the teams’ equipment managers understandably cannot bring such heavy equipment with them to the games, so they rely on the workshops. When a repair job is required, it is often required in a hurry. At the Turkey vs United States game, a chair was repaired during the match.

In addition to wheelchairs, the workshops handle all manner of work with prostheses. Carbon fibre running blades are adjusted. Broken feet and legs are a challenge. The Chinese Boccia team brought in its power chairs to have the electronics adjusted. In that sport, having the controls working perfectly is all-important.

There are 4,200 athletes at the Paralympic games. So far, the workshops have carried out 1,100 repairs.