OSHA Accident Investigation · Summary #14412407
WINDOW WASHER,EQUIPMENT FAILURE,ELEVATED WORK PLAT,GEAR,RAIL,FALL
Event description
Two employees killed when powered platform falls
Investigation abstract
Employees #1 and #2 were using a powered platform to wash windows on the north s , designed to prevent this type of accident, were disabled and could not activat e. The powered platform, with both employees tied off to it, fell about 37 stori es to the street. Employees #1 and #2 were killed on impact. One pedestrian was killed and another was injured by the falling platform. lope of the Pennzoil Place Building. The powered platform they were working from was mounted on the half of the roof that was sloped at a 45 degree angle. The r oof cars supporting the platform ran along a monorail that followed the horizont al and sloped halves of the roof. Two cables ran from the roof cars to hoisting motors beneath the platform. As the roof cars were traversing the monorail, a wo rn gear on the trailing roof car apparently gave way at the corner of the slope. The trailing car fell and struck the leading car, causing the units to speed do wn the sloped portion of the monorail and off the roof. Overspeed safety devices
Victims (5)
-
#1 Fatality Age 34 M
- Nature of injury
- 6
- Part of body
- 19
- Event type
- 5
- Source
- 24
- Occupation code
- 999
- Human factor
- 14
- Environmental factor
- 6
- Task assigned
- 1
-
#2 Fatality Age 47 M
- Nature of injury
- 6
- Part of body
- 19
- Event type
- 5
- Source
- 24
- Occupation code
- 999
- Human factor
- 14
- Environmental factor
- 6
- Task assigned
- 1
-
#981 Degree 0 Age 0
- Nature of injury
- 0
- Part of body
- 0
- Event type
- 0
- Source
- 0
- Occupation code
- 0
- Human factor
- 0
- Environmental factor
- 0
- Task assigned
- 0
-
#982 Degree 0 Age 0
- Nature of injury
- 0
- Part of body
- 0
- Event type
- 0
- Source
- 0
- Occupation code
- 0
- Human factor
- 0
- Environmental factor
- 0
- Task assigned
- 0
-
#983 Degree 0 Age 0
- Nature of injury
- 0
- Part of body
- 0
- Event type
- 0
- Source
- 0
- Occupation code
- 0
- Human factor
- 0
- Environmental factor
- 0
- Task assigned
- 0
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.