(CP)² was retained to perform a causal analysis for a radial gatefailing to
fully close after modification of the gate trunnions. (CP)²visited the project
site, reviewed the project management plans,engineering design,
fabrication inspections, and developed theroot and contributing causes,
as well as recommendations forchanges prior to modifying the other gates.
(CP)² was retained to investigate the cause of a concrete truck rollover accident while transporting concrete on a single lane mountainous road with traffic controls. (CP)² visited the accident and project location, interviewed participants, as well reviewing work processes, and then developed the root cause analysis for the accident.
(CP)²’s client found two broken pipe supports on their high-pressuresteam
line during operation. (CP)² visited the plant and reviewed the relevant
engineering documentation. (CP)² determined that the causeof the support
failures was thermal overloads of the pipe supports. Thecorrective action
was to re-install the supports in a correctedconfiguration.
During startup of the condensate pump, (CP)²’s client would oftentimes
experience a water hammerof varying intensity, sometimes strong enough
to be heard and felt in the control room. (CP)² determined the root cause
of the water hammersto be formation of a vapor bubble in the pump
discharge piping and subsequent collapse when the pump was started. The
piping was modified preventing recurrence of the waterhammers.
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