NTSB, Boeing address 787 fire; United finds wiring error

Here are new developments regarding Boeing 787 problems since this morning’s blog post:

Boeing Co. and the National Transportation Safety Board confirm that the fire that broke out yesterday on a Japan Airlines 787 has been traced to the battery used to start the aircraft’s auxiliary power unit.

In its initial report released Tuesday, the NTSB said the battery sustained “severe fire damage.”

“Thermal damage to the surrounding structure and components is confined to the area immediately near the APU battery rack (within about 20 inches) in the aft electronics bay,” NTSB writes.

The NTSB has three investigators looking into the incident. The Federal Aviation Administration, Boeing, Japan Airlines and a representative of the Japan Transport Safety Board also are investigating.

In a statement released Tuesday, Boeing says it would be premature to discuss details. However, the company said it does not think previous incidents involving 787 electrical components are related to this latest one.

“Nothing that we’ve seen in this case indicates a relationship to any previous 787 power system events, which involved power panel faults elsewhere in the aft electrical equipment bay,” Boeing said in an emailed statement.

The Wall Street Journal reports that United Airlines has found wiring problems on one of its 787s.

The airline found an improperly installed bundle of wires that connect to the APU battery, an unnamed source told the Journal.

• Also this morning, another Japan Airlines 787 had trouble in Boston. About 40 gallons of fuel leaked from the plane prior to takeoff, after it left the gate. The jet was towed back to the gate for evaluation.

The FAA previously instructed airlines to inspect 787s for fuel leaks.

• The price of a share of Boeing stock fell again Tuesday, by $2 to $74.13. That’s 2.6 percent. Yesterday after the fire was first reported, the stock fell 2 percent.

More in Herald Business Journal

Boeing CEO Muilenburg’s total compensation rose to $18.5M

That’s up from just over $15 million a year earlier. It includes the value of stock awards in 2017.

Mother-in-law homes popular after cities ease restrictions

Lynnwood and Everett are seeing a spurt of growth after changing city codes to allow for this development.

Rising household debt casts shade on sunny economy

Real estate and the stock market are vulnerable to bubbles, while debt requires monthly payments.

Facebook data whistleblower: ‘Fake news to the next level’

Cambridge Analytica used created an information cocoon to change their perceptions, he says.

Facebook drags technology companies down as stocks slide

The company’s stock fell after reports that a data firm improperly obtained data on 50 million users.

3 must-try doughnuts when Top Pot opens in Edmonds

After two years of work, the popular Seattle chain is opening its second Snohomish County location.

Boeing’s newest 737 Max makes first flight over Seattle

Prospects for the new aircraft — the Max 7 — are hazy, as low-cost carriers migrated to larger models.

The next ferry you board might run on batteries

But progress in electrifying the world’s shipping fleets is miles behind advances in automobiles.

Most Read