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NEAR MISS/CLOSE CALL
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| Employee Name: |
XXXXXXXXXXXX |
Employee Number: |
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Phone: |
XXXXXXXXXXXX |
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| Date Of
Near Miss/Close Call: 01/12/2007 |
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Describe
Near Miss/Close Call
| During hot tie-in operations a rush of
gas caused controlled fire to become larger than could be controlled by
fire control stack. Excavation needed to be evacuated while fire
extinguishers were deployed to put out fire. Job was shut-down and
secured while the cause of the gas rush was investigated. Various items
were looked at as cause, such as improper fire control stack operation
and malfunction of fire control stack. It was determined that a valve
greasing operation approx. 110 ft
away caused the seat on plug valve to be hydraulically lifted creating a
path for gas to leak through from the upstream side. After cause was
determined an all hands safety meeting was conducted. Discussed what
happened, how everyone performed, and what could be done in the future
to prevent re-occurrence and to more safely execute evacuation. Also
discussed was how to proceed with the tie-in operations. We proceeded by
discontinuing the valve greasing operation, cleaning the excavation of
ansul extinguisher material and ensuring that we had charged fire
extinguishers. Then relit the tie-in location and ensured we could
control the fire. Also we ran controlled fire operations for 30 minutes
prior to allowing personnel to continue welding to ensure and give us
confidence we had fire control and would not get another surge of gas.
Rest of tie-in operations went smoothly. |
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Contributing
Factors of Near Miss/Close Call
| Greasing a closed
block valve that is isolating tie-in could allow gas leakage through
valve.
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Corrective Action
| Prohibit greasing
of closed block valves that are being used for isolation. Add warning to
tie-in procedures. Discuss the evacuation procedure for excavation
during morning safety meeting. Emphasize the diligence of fire watch
duties. Review with all work groups. |
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| Supervisor:
XXXXXXXX |
| Supv.
Email: XXXXXXXXXXXXXX |
| Supv.
Phone: XXXXXXXXXXXXX |
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