Abstract: At 12:00 a.m. on February 18, 2022, Empoyee #1, a Millwright , and three coworkers, coworker #1, a Millwright, coworker #2, a Forklift Technician, and coworker #3, a Dock & Door Specialist, were conducting an assessment to determine what repairs needed to be completed to Overhead Door 8B, which had sustained damage from high winds. Overhead Door 8B measured 25 feet in height by 20 feet in length. It was determined by the contracted Dock & Door Specialist and Forklift Technician that the door would have to be elevated 6 inches above the tracks in order to set the door back into place. It was determined the two Millwrights would conduct maintenance, and the Dock & Door Specialist would watch the tracks. The Forklift Technician was responsible for operating the lift to the Caterpillar 670 Series Lull, which had a walking-working platform that held the Door & Dock Specialist and Employee #1. Coworker #1 was responsible for all electrical controls at the electrical panel, and responsible for Lockout/Tagout (LO/TO). In order to get the door to achieve the 6-inch lift above the tracks, it required coworker #1 to release his lock and ascend the curtain up. Assessments and repairs were being conducted in the northwest portion of the door, while the electrical panel was in the southeast portion of the door; therefore, Coworker #1 faced away from operations. Both Millwrights had walkie-talkies on their bodies (purposes for LO/TO communication); however, they were not used, they shouted back & forth as their form of LO/TO communication. Employee #1, without notifying the others, reached into the roller of Overhead Door 8B once energy to the door was released. The curtain to the door, which reached speeds between 1.8 - 2.3 ft/sec, caught Employee #1's arm, which dragged him into the roller (all the way up to the mid-section). Employee #1 died from injuries related to caught-in, struck-by, and crush hazard(s).