OSHA Accident Investigation · Summary #1001254
WINDOW WASHER,BOSUN CHAIR,MOBILE SCAFFOLD,UNSECURED,WORK RULES,BROKEN CABLE,FALL,SCAFFOLD
Event description
Employee killed in fall with single point scaffold
Investigation abstract
Employee #1 and a coworker moved a rolling tower single point scaffold from one of the building, the rolling scaffold upended and catapulted over the edge of th e building. The scaffold and Employee #1 fell 72 feet to the adjacent concrete l evel; he was killed. The employees had elected to use #9 wire to attach the coun terweights to the rear of the rolling scaffold. The wire broke, allowing the wei ghts to fall to the roof. roof to an adjacent roof to use while washing windows. They set up the scaffold and attached three 55 lb counterweights to the rear of it, without tiebacks. The y then proceeded to attach a boatswain's chair to the hook of the beam scaffold and a lifeline to the same hook. Employee #1 fitted himself with a body harness, attached the lifeline to the harness, and got into the boatswain's chair. He we nt over the side of building and proceeded to wash the exterior windows. When he finished one window, the coworker would move the rolling scaffold to an adjacen t window and Employee #1 would clean it. When the coworker looked over the side
Victim
-
#1 Fatality Age 32 M
- Nature of injury
- 21
- Part of body
- 1
- Event type
- 5
- Source
- 5
- Occupation code
- 448
- Human factor
- 4
- Environmental factor
- 13
- Task assigned
- 1
Codes shown verbatim from OSHA's accident-investigation database. A human-readable decoder is coming in a future release once the accident_lookup2 dictionary is loaded.