PORTSMOUTH, N.H. — A federal agency has agreed to lower fines against a New Hampshire brewery where an employee was killed in a keg explosion.

Ben Harris of Redhook Ale Brewery in Portsmouth was emptying a plastic keg with pressurized air when it blew apart at the seams in April, killing him.

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The Occupational Safety and Health Administration concluded Redhook was at fault because its equipment for emptying kegs was operating at a pressure that exceeded the maximum threshold recommended by the keg manufacturer.

Redhook’s parent company, Craft Brew Alliance, has taken responsibility for failing to install a device that would have regulated the pressure inside the machine.

Foster’s Daily Democrat reports in a settlement reached last week, OSHA threw out some violations and lowered the fines from about $63,000 to $44,000.