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Inspection Detail
Inspection: 112125604 - U.S. Borax And Chemical Corp
Inspection Information - Office: Fresno District Office
Site Address:
U.S. Borax And Chemical Corp
Borax Road
Boron, CA 93516
Mailing Address:
, , 00000
Union Status: Union
SIC:1474
NAICS: 0
Inspection Type: Accident
Scope: Partial
Advanced Notice: N
Ownership: Private
Safety/Health: Safety
Close Conference: 06/25/1991
Emphasis:
Case Closed: 05/28/1992
| Type | Activity Nr | Safety | Health |
|---|---|---|---|
| Accident | 361261928 |
| Violations/Penalties | Serious | Willful | Repeat | Other | Unclass | Total |
|---|---|---|---|---|---|---|
| Initial Violations | 2 | 1 | 3 | |||
| Current Violations | 2 | 1 | 3 | |||
| Initial Penalty | $4,000 | $0 | $0 | $0 | $0 | $4,000 |
| Current Penalty | $4,000 | $0 | $0 | $0 | $0 | $4,000 |
| FTA Penalty | $0 | $0 | $0 | $0 | $0 | $0 |
| # | Citation ID | Citaton Type | Standard Cited | Issuance Date | Abatement Due Date | Current Penalty | Initial Penalty | FTA Penalty | Contest | Latest Event | Note |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | 01001 | Other | 1509 B | 06/28/1991 | 07/30/1991 | $0 | $0 | $0 | - | ||
| 2. | 02001 | Serious | 5164 B | 06/28/1991 | 07/12/1991 | $2,000 | $2,000 | $0 | - | ||
| 3. | 03001 | Serious | 3328 G | 06/28/1991 | 07/12/1991 | $2,000 | $2,000 | $0 | - |
Investigation Summary
At approximately 10:40 a.m. on June 20, 1991, Employees #1 through #3 were preparing to remove a fiberglass roof from the #T4-B tank at a refinery. Employees #1 and #2 were on the tank roof disconnecting the heavy metal catwalk, while Employee #3 was riding in a self-propelled aerial manbasket, using wooden wedges to break the outer tank roof seal. As they were working, the tank roof collapsed. The roof edge projected outward during the collapse and pinned Employee #3 in the manbasket. It then fell inward, causing Employees #1 and #2 to fall about 45 ft. Employee #1 suffered fatal head injuries, Employee #2 sustained a sprained back, and Employee #3 suffered a bruised abdomen. Ten out of the sixteen bolts on the lower support flange of the inner support compression ring of the fiberglass compression dome were badly corroded and had been cut out, which contributed to the roof collapse.
Keywords: ROOF COLLAPSE, HEAD, ROOF, DISMANTLING, INADEQUATE MAINT, UNSECURED, WORK RULES, STORAGE TANK, FALL, FALL PROTECTION
| # | Inspection | Age | Sex | Degree of Injury | Nature of Injury | Occupation |
|---|---|---|---|---|---|---|
| 1 | 112125604 | Fatality | Fracture | Millwrights | ||
| 2 | 112125604 | Non Hospitalized injury | Strain/Sprain | Millwrights | ||
| 3 | 112125604 | Non Hospitalized injury | Bruise/Contus/Abras | Millwrights |