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The inspectors identified a finding involv … The inspectors identified a finding involving the failure to follow the requirements of Procedure AP 16E-002, Post Maintenance Testing Development, for the startup feedwater pump. On November 4-6, 2010, Wolf Creek workers disassembled the startup feedwater pump for numerous preventive and corrective activities including removing the rotating element. On November 17, 2010, Wolf Creek conducted surveillance Procedure STN AE-007, Startup Main Feedwater Pump Operational Test, following reassembly. The only acceptance criteria listed in this procedure is that the motor-driven feedwater pump starts from the control room with no local operator action. The inspectors found this contrary to Procedure AP 16E-002, which requires acceptance criteria for a pump flow capacity test, vibration, bearing and lubrication temperatures, motor current, external leakage, and lubrication level be found satisfactory. This issue is captured in the corrective action program as Condition Report 39494. Wolf Creek issued a new work package to conduct a single-point pump capacity test and complete the required postmaintenance testing. Wolf Creek found, pending final review, that initial calculations show that the pump design is capable of enough flow to provide a heat sink in emergency operating procedures. Failure to follow Procedure AP 16E-002 for developing test criteria for plant equipment after the completion of maintenance activities is a performance deficiency. The finding is more than minor because it is associated with the Mitigating Systems Cornerstone attribute of equipment performance and it adversely affects the cornerstone objective of ensuring the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. Using Inspection Manual Chapter 0609.04, the inspectors determined that the finding had very low safety significance (Green) because it did not result in a loss of system safety function, an actual loss of safety function of a single train for greater than its technical specification allowed outage time, or screen as potentially risk significant due to a seismic, flooding, or severe weather initiating event. The inspectors determined that the finding had a cross-cutting aspect in the area of problem identification and resolution. Specifically, Wolf Creek created a testing procedure in response to a root cause evaluation, but did not consider acceptance criteria to ensure that the pump performs acceptably. ensure that the pump performs acceptably.

Discovered date

23:59:59, 30 June 2011 +

Docket

05000482 +

Event date

23:59:59, 30 June 2011 +

Finding integer

6 +

Finding type

Finding +

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INPO aspect

PI.3 +

Identified by

NRC identified +

Inspection Manual Chapter

NRC Inspection Manual 0609.04 +

Inspection procedure

IP 71111.19 +

Inspection report

IR 05000482/2011003 +

Inspector

Greg Pick +, Geoffrey Miller +, James Drake +, G Guerra +, A Fairbanks +, C Long +, Dustin Reinert +, Charley Peabody + and David Strickland +

Modification date"Modification date" is a predefined property that corresponds to the date of the last modification of a subject and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.

19:06:56, 30 September 2017 +

Person