OSHA Accident Investigation · Summary #571646

CONCRETE FORM WORK,FRACTURE,CRANE BOOM,PINNED,CONSTRUCTION,EQUIPMENT FAILURE,BOLT,STRUCK BY,FALLING OBJECT,SHEARED

1985-04-08T00:00:00

Event: CONCRETE FORM WORK,FRACTURE,CRANE BOOM,PINNED,CONSTRUCTION,EQUIPMENT FAILURE,BOLT,STRUCK BY,FALLING OBJECT,SHEARED
Linked inspection: No inspection record linked to this accident's victims.
Summary number: 571646
Report ID: 521400

Event description

Employee's leg fractured by falling crane boom

Investigation abstract

Employee #1 was working on a 12 ft high concrete form using a concrete vibrator. A Link-Belt 30 ton crane with 60 ft boom, model #LS78, serial #701609, was susp ending a bucket load of concrete approximately 2 ft above the hopper that was on the inside of the formwork. The boom hoist brake bolt sheared off at the bolt e nd, causing the boom to fall. Employee #1 was struck by the boom and his leg was pinned between the boom and scaffold planking. He remained in this position unt il freed by a city rescue squad, who used a backhoe to lift the boom off the for mwork. Employee #1 suffered multiple leg fractures.

Victim

#1 Hospitalized Age 32 M

Nature of injury
12

Part of body
16

Event type
2

Source
27

Occupation code
999

Human factor
14

Environmental factor
6

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.