The National Highway Traffic Safety Administration said an exploding Takata Corp. air bag has been connected to an eighth U.S. death, the ninth globally, from an accident in Pittsburgh in July.

The administration also named former U.S. Deputy Attorney General John D. Buretta as the independent monitor ensuring that Takata follows the agency's consent decree issued on Nov. 3 to stop using its version of ammonium nitrate as a chemical to deploy air bags and follow through with testing and other requirements. The agency also fined Takata $70 million at that time.

Agency spokesman Gordon Trowbridge said that as of Dec. 4, about 27.3% of driver-side air bags and 25.8% of passenger-side air bags that have been recalled have been replaced.

"The pace is accelerating and doing so rapidly," he said.

The NHTSA said a lawyer for the family of a "minor" killed in an accident in July approached the agency this month with the belief that an exploding air bag killed him. He was driving a 2001 Honda Accord, one of the 19 million vehicles that have been recalled so far. The Accord had spent several years in the Gulf Coast area.

The agency said it didn't know if the owners had received a recall notice, but it was among the first vehicles to be recalled in what has been an ever-widening global concern.

Honda said the vehicle in question had been recalled in 2010 and the company made several attempts to contact the owner at the time. The vehicle changed owners after 2012, and Honda said it sent another notice to the new owner on July 21, one day before the accident that killed the minor.

High heat and humidity is believed to destabilize the ammonium nitrate that is used to deploy air bags, making them explode and sometimes send shrapnel into the cabin.

The availability of replacements parts have slowed the recall repairs, but the repairs are increasing as alternative manufacturers are supplying air bags.

NHTSA also will be expanding the recall by a few hundred thousand vehicles to include additional Mazda6, Subaru Legacy and Outback and Honda CR-Vs from last decade.

Write to Mike Ramsey at michael.ramsey@wsj.com

 

(END) Dow Jones Newswires

December 23, 2015 12:25 ET (17:25 GMT)

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