OSHA Accident Investigation · Summary #972554

NEWMAN DRILLING AND CONSTRUCTION CO.

SANTA ROSA, CA· 1987-12-30T11:00:00

Event: OVERHEAD POWER LINE, ELECTRICAL, BOOM, ELECTROCUTED, E GI IA, CRANE
NAICS: 000000
Inspection type: Accident-driven
Activity number: #100952084
Employer profile: NEWMAN DRILLING AND CONSTRUCTION CO.
Summary number: 972554
Report ID: 931800

Event description

ELECTRIC SHOCK - CONTACT WITH OVERHEAD LINE THRU AUGER

Investigation abstract

AN EMPLOYEE WAS OPERATING AN AUGER TO DRILL A 24-INCH-DIAMETER, 5.5-FOOT-DEEP HO LE FOR A STREETLIGHT POLE FOUNDATION. THE EMPLOYEE RAISED THE 34-FOOT BOOM OF TH E AUGER TO A NEARLY VERTICAL POSITION. A 21-KILOVOLT (TO GROUND) OVERHEAD POWER LINE WAS LOCATED ABOUT 30 FEET DIRECTLY ABOVE THE DRILLING SITE. THE BOOM CONTAC TED THE POWER LINE AT A POINT 3 FEET, 2 INCHES FROM ITS TIP, ELECTROCUTING THE E MPLOYEE. ACCORDING TO THE EXAMINING DOCTOR'S AND THE CORONER'S REPORTS, THE EMPL OYEE HAD BURN MARKS ON HIS LEFT HAND AND HIS LEFT FOOT.

Victim

#1 Fatality Age 27 M

Nature of injury
10

Part of body
4

Event type
13

Source
15

Occupation code
999

Human factor
6

Environmental factor
18

Task assigned
1

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