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Inspection Detail
Inspection: 125891770 - Southern California Edison
Inspection Information - Office: San Bernardino District Office
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
| Type | Activity Nr | Safety | Health |
|---|---|---|---|
| Accident | 362041345 |
Investigation Summary
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
| # | Inspection | Age | Sex | Degree of Injury | Nature of Injury | Occupation |
|---|---|---|---|---|---|---|
| 1 | 125891770 | Hospitalized injury | Fracture | Mechanical engineering technicians |