Takata is adding 2.7 million vehicles from Ford, Nissan and Mazda to the long list of those being recalled to replace potentially unsafe air bag inflators. Instead, it was someone trying to make repairs with a hammer.
Honda says the man died in June 2016 when the airbag exploded, but they were only recently informed of the incident.
Honda says the car's ignition switch was on, so the air bag would have been ready.
Eventually, the person activated the air bag inflater, which ruptured as the bag blew up, according to Honda. Kuffo was taken to a trauma center, where he died the next day.
"It is hard to determine whether the cause of death in this incident was the inflator rupture, or an interaction of the hammer with the deploying airbag", Honda said.
US Air Force lieutenant, Stephanie Erdman, was injured in one eye when a defective airbag deployed in her vehicle during a 2013 crash.
"While the absolute cause of death may never be fully determined, Honda now considers this to be the 11th confirmed fatality in its vehicles related to Takata airbag inflator ruptures in the United States".
The company did not release the name of the man out of respect for his family, but confirmed that he was not the car's owner and he was working on the vehicle at a private residence.
According to a Honda spokesperson, a deceleration sensor that activates the airbags is mounted on the wall between the engine and the passenger compartment.
"Our records indicate that the recall fix was never completed on this vehicle", Honda's statement said.
The NHTSA said that the Japanese auto parts company has determined, however, that those air bags may also explode "after long-term exposure to moderate absolute humidity, temperatures, and temperature cycling".
According to Honda, Alpha inflators can have as high as a 50-50 chance of exploding and injuring an occupant. The OEM noted that 12 recall notices were sent since 2009 to the Accord's registered owners. But Honda vastly expanded the recall to cover more than 2 million vehicles by 2011.
Honda said Monday that it has sufficient replacement inflators to fix all of its cars subject to the recall.
In other words, the chemical can break down over time, becoming less effective in preventing violent airbag inflator ruptures that have been linked to at least 12 deaths in the U.S.
In the USA, more than 16 million inflators have been repaired so far, or 38 percent of the total. Last month Takata filed for bankruptcy protection in both Japan and the USA and most of its assets were bought by rival Key Safety Systems. About 46 million Takata air bags in 29 million cars have already been called back, with another 20 million to 25 million additional air bags set to be recalled with the next couple of years.