The International Air Transport Association, which represents U.S. airlines and other carriers that fly internationally, asked for the aircraft battery exemption at the October 2011 meeting of the U.N. agency's dangerous goods committee.
The association argued that the exemption would give airlines "significant operational flexibility in being able to move aircraft batteries on a passenger aircraft where cargo aircraft may not be available over the route, or within the time required if a battery is required at short notice," according to a copy of the request obtained by The Associated Press.
Since the batteries have to meet special safety standards in order to be installed on planes, "it is believed that exceeding the (11-pound) limit for passenger aircraft will not compromise safety," the request said.
Some members of the committee opposed allowing shipments of lithium ion aircraft batteries on passenger planes, saying safety regulations that let the batteries be used onboard planes don't necessarily ensure they can be transported safely as cargo, according to a summary of the meeting posted online by the U.N. agency.
"One member had discussed this proposal with an engineer in their (country's) airworthiness office who was familiar with standards for batteries installed in aircraft," the summary said. "This colleague did not believe testing standards for installed aircraft batteries warranted special treatment for transport purposes." It was pointed out that the safety standards applied to batteries used in the operation of an aircraft are "narrowly tailored to performance issues and how the battery interacted with aircraft systems," the summary said.
The summary doesn't identify the committee member, but a source familiar with the deliberations said it was the U.S. representative, Janet McLaughlin. She abstained from the vote on the standards, said a federal official with knowledge of the meeting. Neither source was authorized to comment publicly and both spoke only on condition of anonymity.
The Japan Airlines fire ignited about half an hour after the plane had landed in Boston and nearly 200 passengers and crew members had disembarked. Firefighters were alerted after a cleaning crew working in the plane smelled smoke. It took nearly 40 minutes to put out the fire.
The "multiple systems" that were designed to prevent the 787's batteries from catching fire "did not work as intended," Deborah Hersman, the current NTSB chairman, told reporters recently. The "expectation in aviation is never to experience a fire on an aircraft," she said.
Concern about transport of lithium ion aircraft batteries on passenger planes isn't limited to the batteries used in the 787. The Airbus A350, expected to be ready next year, will also make extensive use of lithium ion batteries.
Aircraft manufacturers are also considering retrofitting some planes to replace their batteries with lithium ion batteries to save weight, according to the airline association. The less a plane weighs, the less fuel it burns. Fuel is the biggest operating expense of most airlines.
Cargo airline pilots long have complained about the dangers of transporting lithium batteries. The batteries are suspected of causing or contributing to the severity of an onboard fire that led to the September 2010 crash of a United Parcel Service plane near Dubai, killing both pilots. The two pilots of another UPS plane barely managed to escape the aircraft before it was consumed by fire moments after landing in Philadelphia in 2006.
Fires involving rechargeable lithium-ion batteries can reach 1,100 degrees and are extremely difficult to put out.
Follow Joan Lowy at http://www.twitter.com/AP_Joan_Lowy
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