OSHA Accident Investigation · Summary #14307490
CONCRETE FORM WORK,COLLAPSE,INADEQUATE MAINT,PIN,CRANE BOOM,BROKEN CABLE,CONSTRUCTION,EQUIPMENT FAILURE,STRUCK BY,SHEARED
Event description
Two employees killed, two hospitalized, by collapsing boom
Investigation abstract
Employees #1, #2, #3, and #4 were having an afternoon break on the third level o being operated with one of its boom stops removed. f a poured concrete construction job. At the same time, a crane over their heads was moving a load of plywood for forms over their heads when its boom collapsed . Employees #1 and #2 were struck and killed. Employees #3 and #4 required hospi talization. Investigation revealed that a gantry sheave pin had sheared in half from lack of lubrication, which allowed the boom to fall forward, taking up slac k in the boom cable. The cable broke once the slack was gone, allowing the boom to fall from the boom cable. The cable had been scheduled for replacement but th is had been delayed due to the tight construction schedule. Also, the crane was
Victims (5)
-
#1 Fatality Age 44 M
- Nature of injury
- 12
- Part of body
- 19
- Event type
- 1
- Source
- 27
- Occupation code
- 999
- Human factor
- 12
- Environmental factor
- 6
- Task assigned
- 1
-
#2 Fatality Age 43 M
- Nature of injury
- 12
- Part of body
- 19
- Event type
- 1
- Source
- 27
- Occupation code
- 999
- Human factor
- 12
- Environmental factor
- 6
- Task assigned
- 1
-
#3 Hospitalized Age 25 M
- Nature of injury
- 20
- Part of body
- 19
- Event type
- 1
- Source
- 27
- Occupation code
- 999
- Human factor
- 12
- Environmental factor
- 6
- Task assigned
- 1
-
#4 Hospitalized Age 34 M
- Nature of injury
- 12
- Part of body
- 19
- Event type
- 1
- Source
- 27
- Occupation code
- 999
- Human factor
- 12
- Environmental factor
- 6
- Task assigned
- 2
-
#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
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.