This presentation comprises information regarding battery failure in Boeing 787 and the efforts made by Boeing Commercial Airplane and impact of battery failure on Airlines.

1. Prepared By,
Aditya T Parmar,
Student,
Department Of Electrical Engineering,
Charotar University Of Science & Technology,
Email – adisoni624@gmail.com

2. Abstract
 Boeing Commercial Airplane is the most leading airplane
manufacturing company in the world.
 It has manufactured thousands of commercial airplanes till date.
Among all the airplanes, the latest airplane Boeing 787 is most fuel
efficient and economical airplane.
 Unfortunately after some time of launch, many airlines complained
about battery failure in Boeing 787 during flight.
 My article talks about how the problem was raised, which airlines were
suffered from this problem and how this problem was faced by the
Boeing Commercial Airplane to solve it within a short time to operate
B787 in the sky successfully.

3. Introduction
 The Boeing 787 Dreamliner is a
long-range, mid-size wide-
body, twin-engine jet
airliner developed by Boeing
Commercial Airplanes.
 Its variants seat 210 to 335
passengers.
 It is Boeing's most fuel-
efficient airliner and the world's
first major airliner to
use composite materials as the
primary material in the
construction of its airframe.

4.  The 787 has been designed to be
20% more fuel efficient than
the 767 it is to replace. Boeing
has made 32$ billion to of
expenditure on the making and
testing of Boeing 787 upto 2011.
The unit price of Boeing 787 is
218.3$ million in 2013.
 First commercial flight of
Boeing 787 is operated on
October 26,2011 by All Nippon
Airways. And other primary
users operating Boeing 787 is
Japan Airlines, Air India,
Ethiopian Airline.

5. Impacts Of Battery Failure On Airlines
 On January 16, 2013, All Nippon
Airways Flight NH-692, en route
from Yamaguchi Ube Airport
to Tokyo Haneda, had a battery
problem warning followed by a
burning smell while climbing
from Ube about 35 nautical
miles west of Takamatsu, Japan.
The aircraft diverted to
Takamatsu and was evacuated
via the slides; three passengers
received minor injuries during
the evacuation.

6.  A similar incident took place
with Japan Airline’s 787
at Boston's Logan International
Airport within the same week.
 These two incidents has made
Federal Administration Of
Aviation force to ground all the
Boeing 787 in service at that time.
 On the same day Japan Airline
and All Nippon Airways
announced that they are
voluntarily grounding or
suspending flights of their fleets
of 787s after multiple incidents,
including emergency landing.

7.  These two airlines were operating 24 of the 50 787 Dreamliners
delivered to date.
 The grounding is reported to have a cost All Nippon Airways to lost 93$
million.
 Chile’s Directorate General Of Civil Aviation grounded LAN Airline’s 3
787s.
 The Indian Directorate General Of Civil Aviation directed Air India to
ground its six 787 Dreamliners.Qatar Airways grounded its all five
787s.
 And Ethiopian Airlines was the last operator to announce temporary
grounding of its four 787s.
 Finally By, January 17,2013, All 50 of the aircraft delivered to date had
been grounded.
 On January 18, Boeing announced that it was halting 787 deliveries
until the battery problem is resolved.

8. Actions Taken By Boeing Commercial
Airplane
 Boeing Commercial Airplane was very eager to solve Boeing 787’s
battery problem as early as possible to resume the delivery of 787s
as well as to resume the fleets which were grounded by many
primary airlines worldwide.
 Mr. Mike Sinnett, vice president and chief project engineer,787
Program, Boeing Commercial Airplane Said that “ We've come up
with a comprehensive set of solutions that result in a safer battery
system, We have found a number of ways to improve the battery
system and we don't let safety improvements go once they are
identified. We incorporate them into our processes and products."

9.  The first step was taken by Boeing is to control the manufacturing
process of the batteries in Japan. The Boeing teamed with Thales, The
provider of the integrated power conversion system, and battery maker
GS Yuasa to develop enhanced production standards and tests to
further reduce any possibility for variation in the production of the
individual cells as well as the overall battery.
 They have also added new 4 tests to screen cell production and total of
10 distinct tests. Each cell of the battery was going through more
rigorous testing in the month of manufacturing including 14 day test
during which discharge rates were being taken every hour. This team
also decided to narrow the level of charge for the battery by lowering
the highest charge allowed and raising the lower level allowed for
discharge. Also they had redesigned the two pieces of battery- The
battery monitoring system and charger. Charger was also designed so to
lower the stresses on the battery during charging process.
 Team had also designed new fireproof battery enclosure made up of
stainless steel. It isolates the battery from the rest of the equipment in
the electronic equipment bays. This enclosure has a facility to direct
vent to carry battery vapors outside the airplane.

10.  After 200,000 hours of engineering work, team was successful to make
a new 100 % secured battery for Boeing 787. FAA permitted Boeing for
the battery tests to get FAA Approval and after completing very
difficult and critical tests of 100,000 hours, new design was approved
by FAA.
 President and CEO of Boeing Commercial Airplane Raymond L Conner
said “ We are following all of the necessary protocols to get our new
design fully approved and properly installed so that we can help our
customers start flying as soon as possible. We're simultaneously
moving out on an effort to resume deliveries but completing our
certification work and getting the delivered fleet flying again is our first
priority, Our customers and their passengers have been incredibly
patient as we have worked through this process and we thank them
very sincerely for their continued support and confidence in the 787.”

11. Conclusion
 Boeing Commercial Airplane introduced very efficient and economic
airplane that is Boeing 787, popularly known as Dreamliner. As every
successful designs need to face the difficulties, Boeing 787 was also
having battery failure problem but the infinite efforts made by Boeing
team made it possible to put 787s again to touch the sky.

12. Reference
 www.Boeing.com
 www.wikipedia.org