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WASHINGTON -- The risk of fire is prompting federal officials to back a proposed ban on rechargeable lithium battery shipments as cargo on passenger airlines.
"We believe the risk is immediate and urgent," Angela Stubblefield, a Federal Aviation Administration hazardous materials official, said at a public meeting on Thursday. She cited research showing the batteries can cause explosions and fires capable of destroying a plane.
Billions of the lithium-ion batteries are used to power consumer electronics ranging from cellphones and laptops to power tools and toothbrushes. Tens of thousands of the batteries are often shipped on a single plane.
FAA tests show that even a small number of overheating batteries emit gases that can cause explosions and fires that can't be prevented by current fire suppression systems.
Thursday's meeting was called to discuss what position the U.S. will take on the issue at an upcoming international aviation safety meeting.
The International Civil Aviation Organization, a U.N. panel, is scheduled to take up the question of the safety of battery shipments at a meeting in Montreal later this month. ICAO issues global aviation safety standards, although it's up to countries whether to adopt them.
The International Federation of Air Line Pilots' Associations has proposed that the panel adopt a ban until better packaging or other measures can be developed to reduce the risk.
Earlier this year, aircraft makers including Boeing and Airbus called the battery shipments an "unacceptable risk." Boeing and Airbus also sent service bulletins to their airline customers warning of the risks revealed by FAA's tests.
As a result of the FAA tests, more than a dozen airlines have stopped accepting any battery shipments, or large quantities of batteries shipped together. ICAO also sent a bulletin to airlines this summer urging them to conduct safety assessments of their cargo operations to determine if they can safely handle battery shipments.
Janet McLaughlin, another FAA hazardous materials official, told the meeting that the U.S. position at the ICAO meeting will be that the ban should include all cargo shipments of the lithium batteries on passenger planes, not just bulk battery shipments.
The ban wouldn't apply to cargo airlines or to other kinds of batteries. It also wouldn't apply to lithium-ion batteries that are packed inside equipment. For example, a shipment of cellphones with lithium batteries inside them would still be allowed. FAA officials have said being inside a device lessens the risk that a short-circuiting battery will affect other batteries.
Officials from the rechargeable battery and cargo airline industries spoke against a ban at the meeting.
Passenger airlines are often paid by cargo airlines to carry shipments to destinations they don't service. A passenger airline ban would means some places around the world won't be able to receive battery shipments, industry officials said.
George Kerchner, executive director of the Rechargeable Battery Association, said some airlines have conducted the safety assessments and determined they can safely transport the batteries.
He said the FAA should leave the question of whether to transport lithium batteries up to the airlines, which are better able to determine what they can do safely than the government.
Airlines flying to and from the U.S. that accept lithium battery shipments carry 26 million passengers a year, Stubblefield said.