ANA repaired three burnt circuit boards prior to 787’s grounding

All Nippon Airways Co., the biggest operator of Boeing Co. 787s, repaired three damaged circuit boards last year on Dreamliners, the aircraft that was grounded worldwide this year after lithium-ion batteries caught fire.

Of three circuit boards that burned, one that was damaged in April had to be replaced, Shozo Tsue, secretary general of the Japan Federation of Aviation Workers’ Unions, told reporters in Tokyo today. ANA fixed three circuit boards last year safely before flights, Megumi Tezuka, an ANA spokeswoman said by telephone.

Tsue said he doesn’t know whether there is a link between circuit-board damage and the battery fires and that he has sent a letter to the nation’s transport minister asking that “issues” uncovered in the 787 be reconsidered. Boeing’s Dreamliners have yet to fly commercially after the January grounding, the first time in 34 years an entire airplane model has been pulled from service.

“The circuit board case on April 7 was serious and caused damage to the surrounding area,” Tsue said.

Investigators have yet to say they’ve found the causes of a lithium-ion battery fire on a Japan Airlines Co.-operated Dreamliner in Boston in January and that for an emergency landing of an ANA 787 later that month.

Boeing last month submitted a proposed permanent solution for the battery problem to the U.S. Federal Aviation Administration to get the plane back in service. The plan will require extensive testing and approval before regulators end the plane’s grounding, the U.S.’s top aviation official said.

“We can’t say if there was any connection between the circuit boards and the battery, but there have been lots of problems with the electrical system,” Kazuo Harigai, assistant secretary of the Japanese aviation workers’ union, said at the press conference today.

More in Herald Business Journal

More than 60 Boeing 737s per month: Can suppliers keep up?

There was lots of talk this week about the prudence and pressures of soaring production rates.

Developer proposes an 18-story building in Lynnwood

It would be the second-tallest in the county and include apartments with retail space.

Even as stock markets shook, many investors held steady

Older investors were buying stocks, but at a lower rate than their younger counterparts.

Snohomish County business licenses

PLEASE NOTE: Business license information is obtained monthly from the Washington Secretary… Continue reading

New Everett mayor speaks out about business in city, region

Q&A: Cassie Franklin on what can be done to get Boeing to build the 797 here and attract new industries.

Aerospace analyst explains how he’ll help state’s Boeing bid

Richard Aboulafia will deliver a report on Washington’s strengths and weaknesses in landing the 797.

Air passenger traffic growing faster than airplane capacity

“Our customers are in a good place,” a Boeing marketing executive says of the airlines.

JC Penney to close store at the Cascade Mall in Burlington

Eight store closures will result in about 480 job cuts, according to CNBC.

Budget: Lockheed gets almost as much as State Department

Boeing is in second place with annual sales of $26.5 billion in 2016.

Most Read