Abstract: At 8:55 a.m. on January 12, 2021, an employee was observing pressure and function testing of an 5C2 air compressor being conducted by Coworker #1, Coworker #2 and Coworker #3. Coworker #1 locked out the 4160 volt energy source for the compressor. Once pretest and warm up tasks were completed, Coworker #1 removed his lock and Coworker #1, Coworker #2 and Coworker #3 started up the compressor at the control panel. The employee walked past the inlet and his body was pulled into the compressor. Coworker #1 hit the emergency stop shutting down the compressor, pulled the employee from the machine and began CPR. Coworker #2 and Coworker #3 called for help. Emergency Medical Services arrived and administered emergency care but the employee died at the scene.