105,313Records 71,083Employers 85,290Hospitalizations 27,770Amputations 2015-01-01 2025-10-31
Safety Incidents OSHA Severe Injury Reports · 2015–2025

OSHA Accident Investigation · Summary #674218

OXYGEN DEFICIENCY,CLEANING,COLLAPSE,TANK TRUCK,SUFFOCATED,CONFINED SPACE,TANK CLEANING,NITROGEN

Event
OXYGEN DEFICIENCY,CLEANING,COLLAPSE,TANK TRUCK,SUFFOCATED,CONFINED SPACE,TANK CLEANING,NITROGEN
Linked inspection
No inspection record linked to this accident's victims.
Summary number
674218
Report ID
454510

Event description

EMPLOYEE DIED AFTER ENTERING OXYGEN DEFICIENT ATMOSPHERE

Investigation abstract

A TANK TRUCK DRIVER ENTERED THE INSIDE OF A CARGO TANK (NUMBER 3497) AT A WASH S TATION TO CLEAN THE TANK. THE TANK HAD PREVIOUSLY CONTAINED A HYDROGEN SULFITE S OLUTION WITH A NITROGEN BLANKET. THE EMPLOYEE WAS OVERCOME WITHIN 1 MINUTE. THE AUTOPSY LISTED THE CAUSE OF DEATH AS ANOXIA DUE TO EXPOSURE TO A NITROGEN RICH A TMOSPHERE. AIR SAMPLING THE NEXT DAY REVEALED HIGH LEVELS (BUT NOT ABOVE IDLH LE VEL) OF SULFUR DIOXIDE. THE CAUSE OF THIS INCIDENT WAS EMPLOYEE ERROR: HE ENTERE D A CONFINED SPACE WITHOUT TAKING THE NECESSARY PRECAUTIONS.

Victims (4)

  1. #1 Fatality Age 26 M

    Nature of injury
    2
    Part of body
    28
    Event type
    12
    Source
    9
    Occupation code
    804
    Human factor
    1
    Environmental factor
    7
    Hazardous substance
    2290
    Task assigned
    2
  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
  3. #982 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
  4. #983 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.