NTSB Says Boeing 787 Battery Fire Not Due to Overcharging, Quick Fix Unlikely
January 21, 2013 12:11 PM
comment(s) - last by
The investigation is ongoing
The National Transportation Safety Board announced over the weekend that x-rays and CT scans of the lithium-ion battery pack that caught fire in a Boeing 787 Dreamliner in Boston recently was not overcharged. The battery in question powered the plane’s auxiliary power unit and the investigators have disassembled the battery and are still investigating some of the individual battery cells.
has led airlines to stop flying the 787 planes around the world. The NTSB investigators have also said that they have examined several other components from the aircraft including battery management circuit boards and associated bundles of wire. The investigators also intend to continue testing components such as the battery charger and battery management unit.
The investigators have announced that the plane's flight data recorder indicates that the battery never exceeded its design voltage of 32 volts. The FAA issued a directive last week that the Boeing 787 Dreamliner should not fly until any problems with the battery packs are resolved.
Boeing has announced that it will halt deliveries of the 787 to customers while it works with the FAA to solve the battery issues. The batteries at the center of the investigation are lithium-ion units manufactured in Japan by GS Yusana under a subcontract to a company called Thales.
This article is over a month old, voting and posting comments is disabled
1/21/2013 4:41:40 PM
The charging current is much more important than the voltage when dealing with these types of batteries. The lower the charge current, the less likely that the battery will fail. However, Boeing must balance the charge current versus the recharge time.
The vibration environment in a modern airliner is probably less than in most other vehicles. I would say that the vibration environment of the Chevy Volt battery is worse.
But due to the energy stored in lithium batteries, a failure of one cell would certainly lead to a failure of the entire battery in short order. Perhaps the 787 needs to have the battery cells in separate cases to limit the damage if one fails.
"I mean, if you wanna break down someone's door, why don't you start with AT&T, for God sakes? They make your amazing phone unusable as a phone!" -- Jon Stewart on Apple and the iPhone
Investigation of 787 Dreamliner Issues to Focus on Batteries
January 18, 2013, 1:13 PM
Nail Polish May Soon be Able to Detect Date Rape Drugs
August 26, 2014, 7:57 AM
SpaceX Falcon 9-R Rocket Suffers Malfunction, Self-Destructs During Test Flight
August 23, 2014, 9:36 AM
Texas Chosen as Site for SpaceX's First Commercial Launchpad
August 5, 2014, 1:44 PM
South Carolina Prison Finds Crashed Drone Carrying Drugs, Phones
August 1, 2014, 2:49 PM
NASA's Mars 2020 Rover Gains Seven New Instruments for Exploration
August 1, 2014, 1:30 PM
NASA Opportunity Rover Breaks Record for Most Miles Traveled on Another Planet
July 29, 2014, 1:38 PM
Most Popular Articles
Numerous Leaks Detail 4.7" iPhone 6 Processor, RAM, Cellular and NFC Capabilities
August 29, 2014, 10:37 PM
Windows 9: "Upgrade Now" Button Coming for Enterprise Updates, ARM Preview in H1 2015
August 26, 2014, 8:00 PM
L.A. Unified School District’s Apple iPad Contract Canceled Following Heavy Criticism
August 26, 2014, 12:37 PM
Apple Builds Not-So-Secret Secret 3-Story Tower for iPhone 6/iWatch Unveil
August 28, 2014, 3:41 PM
Netflix Accuses Comcast of Ripping Off Customers, Files to Block Merger
August 26, 2014, 5:49 PM
Latest Blog Posts
Space Terrorism is a Looming Threat For the United States
Apr 23, 2014, 7:47 PM
Facebook Aims to Provide Internet to "Every Person in the World" with Drones, Satellites
Apr 1, 2014, 10:20 AM
Retail Mobile Sites Experience Outages in Light of Simplexity's Bankruptcy
Mar 14, 2014, 8:48 AM
Tesla vs. BMW: Who Has the Safer EV?
Feb 1, 2014, 2:56 PM
Justice Leaks Details of Next HTC One Two Flagship Phone
Dec 5, 2013, 4:04 PM
More Blog Posts
Copyright 2014 DailyTech LLC. -
Terms, Conditions & Privacy Information