Fatality · MSHA Record #219911790001

Mechanic Helper fatality at Boron Operations (U S Borax Inc), CA, June 20, 1991

at 10:40 AM

On June 20, 1991, a mechanic helper was fatally injured in a slip or fall of person accident at Boron Operations (U S Borax Inc), CA.

Boron Operations · Surface · Metal/Non-Metal

Operator: U S Borax Inc (Rio Tinto Group)

Kern County, CA

Classification SLIP OR FALL OF PERSON

Type Fall from scaffolds, walkways, platforms

Investigator narrative

EMPLOYEE WAS WORKING ON THE ROOF OF T-4B TANK WHEN COMPRESSION RING FAILED WHICH CAUSED THE EMPLOYEE TO FALL TO THE BOTTOM OF THE TANK, SUFFERING APPARENTLY FATAL INJURIES.

Record details

Activity at time of incident: Handling Supplies Or Material
Subunit / location: MILL OPERATION/PREPARATION PLANT
Accident type: Fall from scaffolds, walkways, platforms
Source of injury: FLOOR,WALKING SURF-NOT UG
Nature of injury: MULTIPLE INJURIES
Body part affected: HEAD,NEC
Experience at this mine: 13 years
Degree of injury: FATALITY

Related fatalities

Same operator

August 18, 1998 · Drill Helper · U S Borax Inc, CA
July 28, 1996 · Maintenance Man · U S Borax Inc, CA
March 27, 1995 · Maintenance Man · U S Borax Inc, CA
November 1, 1993 · Laborer · U S Borax Inc, CA

Same classification

September 23, 2026 · Front-End Loader · Zack Burkett Co., TX
August 13, 2026 · Master Mechanic · Memphis Stone & Gravel Company, MS
July 29, 2026 · Mine Manager · Tata Chemicals Soda Ash Partners LLC, WY
April 30, 2026 · Laborer · Seubert Excavators Inc, OR
March 28, 2026 · Steel Worker · Alpine Silica, LLC, TX

Same year

December 28, 1991 · Mine Manager · Stillwater Mining Company, MT
December 27, 1991 · Haul/Off Road/Coal/Ore/Pit/Quarry/Rock/Rubber Tire Truck Driver · Sierra Rock Products, CA
December 26, 1991 · Maintenance Man · Spring Creek Coal Company, MT
December 19, 1991 · Laborer · Coal Valley Mining Inc, IL
December 18, 1991 · Welder (Shop) · Barrick Goldstrike Mines Inc, NV

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Accident record: Download MSHA Accidents.zip then search for Document number 219911790001 (the unique key per MSHA Form 7000-1)
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Source: US Mine Safety and Health Administration (MSHA) · Document 219911790001 · Mine ID 0400743 Trainer view →