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- REPORT
CHARACTERISTICS:
DONOR: Alberta Community and Occupational
Health
Occupational Health and Safety Division
JURISDICTION:
ALBERTA
REPORT TITLE: Fatality Investigation Data
Base
INFORMATION ABOUT DECEASED:
NAME: Confidential
SEX: Male AGE: 42
OCCUPATION: excavating, grading and related
occupations
INDUSTRY:
water well boring and
drilling
Industrial sector: construction
ACCIDENT
INFORMATION:
DATE OF ACCIDENT: Confidential
PLACE: ALIX
AREA: Red Deer region
NATURE OF INJURY:
asphyxia
(suffocation/drowning) or strangulation
TYPE OF
ACCIDENT:
contact with gases/fumes by inhalation (lack of
oxygen)
SOURCE OF INJURY:
boilers, pressure vessels (incl.
pressurized pipes, hoses)
hydrogen sulphide
exposure
ACCIDENT DESCRIPTION:
The deceased was
operating a D7 cat and scraper on a project to build a
dirt
access road. A DH8 cat with a ripper was ripping frozen
earth in a new
roadside ditch. The ripper struck a gas line
carrying 13% H2S gas at 1000 psi,
resulting in a 2.3m foot long
explosive fracture of the line. The deceased ran
from his
machine downwind and collapsed and died about 45 meters from
his
tractor, which was an additional 45 meters from the
break.
INVESTIGATION:
DATE: 1977-11-24
UNSAFE
ACT(S):
operating without authority, failure to secure or
warn
unsafe position/posture, inappropriate operational
position
UNSAFE CONDITION(S):
no unsafe condition
identified
INDIRECT CAUSE(S):
management's deliberate
disregard of known safe procedures
EMPLOYER
ACTION(S):
eliminate unsafe procedure
OHSO
ACTION(S):
inspections
meeting with company
representatives
other
OTHER'S ACTION(S):
prosecution of
employer
by government agency other than OHSD, WCB or
judiciary
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©2004 Canadian Centre for Occupational
Health & Safety 