No Obvious Battery Anomalies On JAL787/Boston Battery | Aero-News Network
Aero-News Network
RSS icon RSS feed
podcast icon MP3 podcast
Subscribe Aero-News e-mail Newsletter Subscribe

Airborne Unlimited -- Recent Daily Episodes

Episode Date

Monday

Tuesday

Wednesday

Thursday

Friday

Airborne On ANN

Airborne 12.05.16

Airborne 12.06.16

Airborne 11.30.16

Airborne 12.01.16

Airborne 12.02.16

Airborne Hi-Def On YouTube

Airborne 12.05.16

Airborne 12.06.16

Airborne 11.30.16

Airborne 12.01.16

Airborne 12.02.16

Mon, Jan 28, 2013

No Obvious Battery Anomalies On JAL787/Boston Battery

NTSB Provides Fourth Investigative Update on B787 Battery Fire in Boston 

Showing no small impatience to get at the truth, the NTSB has released a fourth update on its investigation into the Jan. 7 fire aboard a Japan Airlines Boeing 787 at Logan International Airport in Boston.

The fire occurred after the airplane had landed and no passengers or crew were onboard. The event airplane, JA829J, was delivered to JAL on December 20, 2012. At the time of the battery fire, the aircraft had logged 169 flight hours with 22 cycles. The auxiliary power unit battery was manufactured by GS Yuasa in September 2012.

NTSB investigators have continued disassembling the internal components of the APU battery in its Materials Laboratory in Washington, and disassembly of the last of eight cells has begun. Examinations of the cell elements with a scanning-electron microscope and energy-dispersive spectroscopy are ongoing.

A cursory comparative exam has been conducted on the undamaged main battery. No obvious anomalies were found. More detailed examination will be conducted as the main battery undergoes a thorough tear down and test sequence series of non-destructive examinations.

In addition to the activities at the NTSB lab, members of the investigative team continue working in Seattle and Japan and have completed work in Arizona. Their activities are detailed below.

ARIZONA

The airworthiness group completed testing of the APU start power unit at Securaplane in Tucson and the APU controller at UTC Aerospace Systems in Phoenix. Both units operated normally with no significant findings.

SEATTLE

Two additional NTSB investigators were sent to Seattle to take part in FAA's comprehensive review. One of the investigators will focus on testing efforts associated with Boeing's root cause corrective action efforts, which FAA is helping to lead. The other will take part in the FAA's ongoing review of the battery and battery system special conditions compliance documentation.

JAPAN

The NTSB-led team completed component examination of the JAL APU battery monitoring unit at Kanto Aircraft Instrument Company, Ltd., in Fujisawa, Kanagawa, Japan. The team cleaned and examined both battery monitoring unit circuit boards, which were housed in the APU battery case. The circuit boards were damaged, which limited the information that could be obtained from tests, however the team found no significant discoveries.

The NTSB promises another factual update on Tuesday, Jan. 29, or earlier if developments warrant.

FMI: www.ntsb.gov, http://go.usa.gov/4K4J, www.twitter.com/ntsb

 


Advertisement

More News

Barnstorming: Saving Santa Monica¬Ö and Enhancing The Future of Aviation

As If We Didn’t Have Enough to Do, Another Critical Challenge Demands Our Full Attention It has been a brutal few weeks… starting with the loss of our dear friend, Bob>[...]

VSS Unity, The New SpaceShipTwo, Free-Flies For The First Time

Two Years After Tragedy, The Program Proves It Still Has The Right Stuff The newest SpaceShipTwo has flown free for the first time. According to the Virgin Galactic crew, "Our new >[...]

AMA Opposes Orlando City Council Drone Ordinance

Proposal Runs Afoul Of Federal Authority Over The Nation’s Airspace... The Academy of Model Aeronautics (AMA) sent a letter to the Orlando City Council in opposition to a pro>[...]

Aero-News: Quote of the Day (12.05.16)

"This represents culmination of many years of hard work and perseverance by the team here in the USA and back at base in Germany too, we’re literally over the moon.” So>[...]

AeroSports Update: AutoGyro Now Type Certificated In The U.S.

The FAA Has Granted Type Certification To AutoGyro For Its Factory-Built Calidus Aircraft It seems we hear a lot about new FAA type certification of airliners and corporate jets, b>[...]

blog comments powered by Disqus



Advertisement

Advertisement

Podcasts

Advertisement

© 2007 - 2016 Web Development & Design by Pauli Systems, LC