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Occupational Safety and Health Administration OSHA

Inspection Detail

Inspection: 18171892 - M. A. Mortenson Company

Inspection Information - Office: Boise

Nr: 18171892Report ID: 1032500Open Date: 02/18/1992

M. A. Mortenson Company
Milner Hydro Project
Murtaugh, ID 83344
Union Status: NonUnion
SIC: 1629/Heavy Construction, Not Elsewhere Classified
Mailing: Route 1 Box 145, Murtaugh, ID 83344

Inspection Type:Accident
Scope:Partial Advanced Notice:Y
Ownership:Private
Safety/Health:Safety Close Conference:04/02/1992
Close Case:06/09/1992

Related Activity:TypeIDSafetyHealth
 Accident360827729    

Violation Summary
Serious Willful Repeat Other Unclass Total
Initial Violations 3 1 4
Current Violations 2 1 3
Initial Penalty $13,500 $0 $0 $0 $0 $13,500
Current Penalty $4,700 $0 $0 $0 $0 $4,700
FTA Amount $0 $0 $0 $0 $0 $0

Violation Items
# ID Type Standard Issuance Abate Curr$ Init$ Fta$ Contest LastEvent
  1. 01001 Serious 19260021 B02 05/11/1992 05/15/1992 $2,200 $4,250 $0 I - Informal Settlement
Deleted 2. 01002 Serious 19260550 A15 I 05/11/1992 05/15/1992 $0 $4,250 $0 I - Informal Settlement
  3. 01003 Serious 19260550 B02 05/11/1992 05/15/1992 $2,500 $5,000 $0 I - Informal Settlement
  4. 02001 Other 19260550 B02 05/11/1992 06/04/1992 $0 $0 $0 I - Informal Settlement

Accident Investigation Summary
Summary Nr: 14550990Event: 02/15/1992Electric Shock - Contact With Overhead Line Thru Boom
A CRANE OPERATOR, A SAW SHOP FOREMAN, AND A MECHANIC WERE UNDER A CRANE, REMOVING AN INSPECTION PLATE SO THAT THE CUTTING DOGS FOR THE SKID STEER MECHANISM COULD BE REPAIRED. APPARENTLY, THE CRANE OPERATOR HAD ACCIDENTALLY MOVED THE BOOM LEVER SOME TIME EARLIER. SINCE THIS LEVER WAS NOT SELF-CANCELLING, THE BOOM GRADUALLY LOWERED AND CONTACTED A 34.5-KILOVOLT OVERHEAD POWER LINE. THE MECHANIC, WHO WAS IN CONTACT WITH THE CRANE, WAS ELECTROCUTED. THE OTHER TWO EMPLOYEES WERE NOT INJURED.
Keywords: overhead power line, electrical, boom, crane boom, electrocuted, e gi ia, crane
Inspection Degree Nature Occupation
1 18171892 Fatality Electric Shock Heavy equipment mechanics

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