Safety Incidents OSHA Severe Injury Reports · 2015–2025
105,991Records 70,589Employers 85,836Hospitalizations 27,959Amputations 2015-01-01 2025-11-30

OSHA Accident Investigation · Summary #14256069

MAC'S WELDING CO.

Event
FLAMMABLE VAPORS, STORAGE TANK, WELDING, EXPLOSION, SPARK, GASOLINE, ARC WELDING
NAICS
000000
Inspection type
Accident-driven
Activity number
#3049913
Employer profile
MAC'S WELDING CO.
Summary number
14256069
Report ID
453710

Event description

Employee killed by empty gasoline storage tank explosion

Investigation abstract

At approximately 5:30 p.m. on February 4, 1989, Employee #1 was attempting to we ld a 2 inch coupling onto the front side of an empty 10,000 gallon gasoline stor age tank that had not been purged. No test was made for the presence of flammabl e vapors in the tank's atmosphere. When Employee #1 struck the welding electrode with the welding rod against the coupling and tank, sparks ignited the vapors i n the tank. The explosion killed Employee #1.

Victim

  1. #1 Fatality Age 49 M

    Nature of injury
    1
    Part of body
    13
    Event type
    1
    Source
    43
    Occupation code
    783
    Human factor
    1
    Environmental factor
    18
    Hazardous substance
    1340
    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.