An Ames company has released more details on an accident last week that killed an employee. Danfoss says John Lavery, 45, was killed Thursday when the safety hood on a motor testing operation fell and struck him. The company says that hood is a protective shield to keep operators safe during testing procedures. Danfoss says it'll replace the existing safety hoods on it's other testing equipment before resuming operations. Lavery had been with the company since October. The state's Occupational Safety and Health Administration is investigating the accident. Danfoss facilities on 13th St. and Airport Rd. have been shut down since Thursday's accident.