ANA finds wiring problems on three Boeing 787s

Boeing Co.’s 787 Dreamliner suffered a fresh setback after ANA Holdings Inc., the model’s biggest operator, said it discovered wiring defects in three aircraft.

The fault, found in the fire-suppression system of a 787 due to depart Tokyo’s Haneda airport today, would cause the wrong extinguisher to be activated in the event of a blaze in one of the plane’s two engines, spokeswoman Megumi Tezuka said.

Boeing’s flagship jet is already under scrutiny following a fire in London last month that initial findings suggested may have been sparked by wires for an emergency beacon. The 787 had returned to service with ANA and Japan Airlines on June 1 after a global grounding in the wake of fires involving jets flown by the pair, later traced to the failure of lithium-ion batteries.

“We will thoroughly examine this issue and take the appropriate steps,” Boeing spokesman Rob Henderson said from Tokyo following the latest incident. “The safety of those flying on Boeing airplanes is our top priority.”

Boeing fell as much as 1 percent and was trading 0.8 percent lower at $105.4 as of 9:47 a.m. in New York. The stock has advanced 40 percent this year.

JAL Turnaround

ANA’s Tezuka said parts were replaced in two of the jets in which the Tokyo-based carrier found the defect, adding it must have occurred during the manufacturing process. The third aircraft will also be fixed by the end of the day, she said.

Japan Air today ordered a 787 bound for Helsinki to return to Narita airport in Tokyo as a precautionary measure after being informed of the new wiring issue by the national Transport Ministry, company spokesman Seiji Takaramoto said.

The carrier subsequently inspected all 10 of its 787s and found no problems, he said. Among other Dreamliner operators, LOT Polish Airlines SA said its planes are flying as scheduled, while Qatar Airways Ltd. said it has had no problems and Norwegian Air Shuttle ASA said it was unaware of the issue.

“These things happen with a new aircraft,” said Robert Stallard, an analyst at RBC Capital in London with an “outperform” rating on Chicago-based Boeing. “When the airlines ground the plane or regulators start becoming involved, then it becomes something to watch out for.”

Transmitters

U.S. regulators ordered Dreamliner operators to check emergency radio transmitters for wire damage after a beacon was linked to the July 12 fire in London. The Federal Aviation Administration is working with Boeing to develop instructions for the inspections, the agency said at the time.

Boeing had delivered 73 Dreamliners to 13 customers through August 7, the company said on its website, with more than 29,000 flights flown. Japan is the biggest customer of the jet.

Dreamliner operators resumed services after a three-month grounding over the battery fires when authorities approved a redesign including more protection around individual cells to contain overheating. Ethiopian Airlines Enterprise was first to restart flights in April, with the Japanese carriers opting for a four-month halt as they took out ads saying the 787 was safe.

More in Herald Business Journal

Aerospace workers adjust to changing industry

The number of Boeing workers dropped almost 10 percent since last year.

Tom Hoban
Are millennials warming up to life in suburbia?

They dominate the apartment market and their wants need to be accounted for, says columnist Tom Hoban.

Camano artist mixes flask, paintings for successful cocktail

Art flasks prove popular as bachelorette gifts, birthday presents and wedding favors.

Fluke’s T6 Electrical Testers receives Innovation Awards honor

Fluke’s T6 Electrical Testers have received top honors in the Tools and… Continue reading

Everett volunteer named ‘community champion’ by Molina Healthcare

Everett’s Jorge Galindo was one of seven people across the state to… Continue reading

Cascade Valley Health to hold Festival of Trees in Arlington

Cascade Valley Health Foundation will be holding their fifth annual Festival of… Continue reading

7-Eleven program helped add 500 trees, shrubs to Everett park

Last month, 7-Eleven helped plant more than 500 trees and shrubs at… Continue reading

Pentagon inspector general praises secret $80 billion bomber

US Government Accountability Office in 2016 rejected a protest filed by Boeing-Lockheed Martin.

Everett’s Sentry Credit celebrates a quarter century in business

Sentry Credit Inc. in Everett is celebrating its 25th year in business.… Continue reading

Most Read