Mining Incidents
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Case study · MSHA Record #219982470014

Prep Plant Foreman fatality

August 23, 1998 at 5:11 AM
Minntac Plant · United States Steel Corp-Minnesota Ore Operations · St Louis County, MN
Investigator narrative
THE SHIFT MANAGER TURNED THE VALVE ON THE PIPE PLUG WHICH WAS CONNECTED TO AN AIR COMPRESSOR ON THE BANK TO INFLATE THE PLUG. WHEN HE FELT THERE WAS ENOUGH AIR IN THE PIPE PLUG, HE SHUT THE VA LVE AND STATED OUT LOUD, "I THINK THERE IS ENOUGH AIR IN THE BLADDER, BUT THERE IS STILL SEEPAGE BETWEEN THE BLADDER AND THE PIPE." THE DECEASED BENT OVER THE PIPE AND TURNED THE AIR VALVE ON
Record details
Classification
EXPLODING VESSELS UNDER PRESSURE
Accident type
Struck by concussion
Activity at time
Machine Maintenance
Subunit / location
MILL OPERATION/PREPARATION PLANT
Source of injury
BOILR,PRES VSL,AIR HOS,OX
Nature of injury
MULTIPLE INJURIES
Body part affected
CHEST (RIBS/BREAST BONE/CHEST ORGNS)
Experience at this mine
22 years
Experience in this job
21 years
Mine type
Facility
Sector
Metal/Non-Metal
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