05000382/FIN-2010004-01
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Finding | |
|---|---|
| Title | Licensee-Identified Violation |
| Description | On May 23, 2008, the licensee identified that one transmitter for Steam Generator No. 1 and one transmitter for Steam Generator No. 2 were inoperable during a previous cycle of operation with the associated technical specification of limiting condition for operation had not been entered. Specifically, the licensee operable with one less than the total number of channels required for startup or power operations without placing the channel in bypass or a trip condition within one hour. This was a violation of Technical Specification Table 3.3-1. The licensee determined that the cause was an inadequate procedure that did not provide enough detail to assure proper valve manipulation and venting to properly calibrate the transmitters. The licensee documented this issue in Condition Report CR-WF3-2008-02107. The corrective actions included enhancing training for temporary outage workers on how to properly calibrate the equipment, revising calibration procedures to provide specifics on appropriate set-up of sensing lines and to identify other reference leg level transmitter calibration procedures which are inadequate. This finding is more than minor because it is associated with the procedure quality attribute of the Mitigating System Cornerstone and affects the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences (i.e., core damage). This finding was considered to have very low safety significance (Green) after using NRC Manual Chapter 0609, Phase 1 screening worksheet under the Mitigation Systems Cornerstone. This licensee-identified finding involved a violation of Technical Specification 3.3.1, Reactor Protective Instrumentation. |
| Site: | Waterford  |
|---|---|
| Report | IR 05000382/2010004 Section 4OA7 |
| Date counted | Sep 30, 2010 (2010Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | W Schaup K Clayton P Elkmann M Davis J Clark R Azua D Overland |
| INPO aspect | |
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Finding - Waterford - IR 05000382/2010004 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Waterford) @ 2010Q3
Self-Identified List (Waterford)
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