The agency said Wednesday that it cited Power Factor LLC for four serious violations after the employee, who has not been identified, died July 24, 3018, while installing solar panels at the base. In their findings, the agency says the employee was hoisting a metal rail that came into contact with overhead power lines.

OSHA cited the company for allowing employees to work too closely to electrical power circuits without de-energizing and grounding the circuits, or guarding the circuits using insulation or other means. Officials also said the company didn’t regularly inspect the job site or train workers to recognize and avoid hazards.

“This tragedy could have been prevented if the employer had complied with electrical standards that require maintaining a safe distance from unprotected energized power lines, training employees, and providing personal protective equipment,” said OSHA Wichita Area Director Ryan Hodge.