NTSB PROVIDES INVESTIGATIVE UPDATE ON BOEING 787 FIRE INCIDENT

(The following is a reformatted version of a press release
issued by The National Transportation Safety Board and received
via electronic mail. The release was confirmed by the sender.) 
NTSB PROVIDES INVESTIGATIVE UPDATE ON BOEING 787 FIRE INCIDENT
IN BOSTON 
Jan. 8, 2013 
WASHINGTON - The National Transportation Safety Board today
released an update on its formal investigation of Monday’s fire
aboard a Japan Airlines Boeing 787 at Logan International
Airport in Boston. There were no passengers or crew on board at
the time. One firefighter received minor injuries. 
In addition to an investigator already on scene who visually
inspected the airplane last night, the NTSB has sent two
additional investigators to Boston and formed investigative
groups to look at airworthiness and fire and airport emergency
response. Senior Air Safety Investigator David Helson has been
designated as the investigator-in-charge. 
Parties to the investigation are the Federal Aviation
Administration and The Boeing Company. In addition, the Japan
Transport Safety Board has appointed an accredited
representative and Japan Airlines will assist the JTSB as
technical advisors. 
Initial investigative findings include: 
• The NTSB investigator on scene found that the auxiliary
power unit battery had 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. 
• Preliminary reports from Japan Airlines representatives
indicate that airplane maintenance and cleaning personnel were
on the airplane with the APU in operation just prior to the
detection of smoke in the cabin and that Boston Logan Airport
Rescue and Fire Fighting were contacted. 
• Rescue and fire personnel and equipment responded to the
airplane and detected a fire in the electronics and equipment
bay near the APU battery box. Initial reports indicate that the
fire was extinguished about 40 minutes after arrival of the
first rescue and fire personnel. One firefighter received minor
injuries. 
Further investigative updates will be issued as events warrant.
To be alerted to any updates or developments, please follow the
NTSB on Twitter at twitter.com/ntsb. 
Contact Information
Office of Public Affairs
490 L’Enfant Plaza, SW
Washington, DC 20594 
Eric M. Weiss
(202) 314-6100
eric.weiss@ntsb.gov
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