OSHA Accident Investigation · Summary #14454318

HEAD,UNSECURED,CRUSHED,FALLING OBJECT

1985-09-11T00:00:00

Event: HEAD,UNSECURED,CRUSHED,FALLING OBJECT
Linked inspection: No inspection record linked to this accident's victims.
Summary number: 14454318
Report ID: 751910

Event description

EMPLOYEE'S HEAD CRUSHED IN WELDING JIG/POSITIONER

Investigation abstract

EMPLOYEE #1 ATTEMPED TO BOLT A LARGE TREE SPADE FRAME INTO THE WELDING JIG/POSIT ARM AND THE POSITIONER TAILSTOCK. IONER. BECAUSE OF IMPROPER ALIGNMENT OF THE HOISTS SUSPENDING THE FRAME, THE FRA ME COULDN'T BE BOLTED TO THE POSITONER BY HAND. THE EMPLOYEE USED AN AIR WRENCH TO TIGHTEN THE BOLTS. THE EXCESSIVE FORCE USED STRAINED THE POSITIONER, BREAKING THE GEAR DRIVE THAT INDEXES THE FRAME AROUND FOR WELDING. THE EMPLOYEE THEN ATT EMPTED TO REMOVE THE FRAME FROM THE POSITIONER WITH THE GEAR CASE BROKEN. THE PO SITIONER WAS NO LONGER HELD IN A VERTICAL POSITION BY ITSELF, BUT BY THE HOIST S UPSENDED FRAME. WHEN THE EMPLOYEE REMOVED THE LAST BOLT HOLDING THE FRAME IN, TH E INDEXING ARM OF THE POSITIONER FELL, CRUSHING THE EMPLOYEE'S HEAD BETWEEN THE

Victim

#1 Fatality Age 31 M

Nature of injury
12

Part of body
13

Event type
2

Source
26

Occupation code
783

Human factor
1

Environmental factor
4

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.