Inspection Detail

Inspection: 125891770 - Southern California Edison

Inspection Information - Office: San Bernardino District Office

Inspection Nr: 125891770

Report ID: 0950633

Date Opened: 09/30/1997

Site Address:
Southern California Edison
37000 East Santa Fe Street
Daggett, CA 92327

Mailing Address:
Post Office Box 337, Daggett, CA 92327

Union Status: NonUnion

SIC:4911

NAICS: 0

Inspection Type: Accident

Scope: Partial

Advanced Notice: N

Ownership: Private

Safety/Health: Safety

Close Conference: 09/30/1997

Emphasis:

Case Closed: 01/12/1998

Related Activity
Type	Activity Nr	Safety	Health
Accident	362041345

Investigation Summary

Investigation Nr: 201150745

Event: 08/05/1997

EMPLOYEE FRACTURED PELVIS IN FALL

An instrument technician for an electric utility was assigned to test an air outlet bleed-off line at the base of a generator tower. The tower was under partial reconstruction, and the employee was testing the system before the utility took over this part of the project. The valve for the line had been improperly installed by a subcontractor's employee, who had assembled a compression fitting with the flared end of the tubing backwards. After pressurizing the system to 830 pascals with a temporary bank of compressed air tanks, the technician placed his hand on the bleed-off valve handle. The valve and about 1 meter of 6-millimeter diameter tubing blew off. The valve and tubing struck the employee in the chest with enough force to knock him down. He received a fractured pelvis in the fall. He was hospitalized for his injuries.

Keywords: EQUIPMENT FAILURE, PELVIS, VALVE, ELEC UTILITY WORK, FALL, FLYING OBJECT, PRESSURE RELEASE

Investigated Inspection
#	Inspection	Age	Sex	Degree of Injury	Nature of Injury	Occupation
1	125891770			Hospitalized injury	Fracture	Mechanical engineering technicians

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