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Occupational Safety and Health Administration OSHA

Inspection Detail

Violation Summary
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 Amount $0 $0 $0 $0 $0 $0

Violation Items
# ID Type Standard Issuance Abate Curr$ Init$ Fta$ Contest LastEvent
  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 -

Accident Investigation Summary
Summary Nr: 170199392 Event: 06/20/1991One Killed, Two Injured When Tank Roof Collapses
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 Degree Nature Occupation
1 112125604 Non Hospitalized injury Bruise/Contus/Abras Millwrights
2 112125604 Non Hospitalized injury Strain/Sprain Millwrights
3 112125604 Fatality Fracture Millwrights

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