05000247/FIN-2012002-02
Finding | |
|---|---|
| Title | Abnormal Operating Procedure Not Followed for Annuciator Alarm Deficiency |
| Description | The inspectors identified an NCV of Technical Specification 5.4.1.a, Procedures, because Entergy personnel did not follow Procedure 2-AOP-ANNUN-1, Failure of Flight or Supervisory Panel Annunciators, for an intermittent control roo
annunciator problem. Specifically, between January 18, 2012 and January 30, 2012, operations personnel did not enter Procedure 2-AOP-ANNUN-1 when the entrance criteria were satisfied for an intermittent problem that involved control room annunciator horns sounding but alarms not flashing on control room panels SAF-SCF. The procedure directed troubleshooting the problem, notifying the shift manager (SM) / control room supervisory (CRS) to determine methods of compensatory monitoring, initiating a work request (WR) to repair the problem, determining emergency action level applicability and initiating a CR. After this issue was identified by NRC inspectors, Entergy personnels corrective actions included troubleshooting the issue, developing a standing order for an extra operator to verify annunciators during a transient, and initiating a WR to fix the annunciator issue during the refueling outage in March 2012. Entergy personnel entered this issue into the CAP as CR-IP2-2012-595. This finding is more than minor because it is associated with the equipment performance attribute of the Mitigating Systems Cornerstone and affects the cornerstone objective of ensuring the availability and reliability of systems that respond to initiating events to prevent undesirable consequences. Specifically, the failure of the control room annunciators to alert operators to changing plant conditions during a transient could delay or impact operators ability to mitigate an accident. Using IMC 0609.04, "Phase 1 Initial Screening and Characterization of Findings," the inspectors determined this finding was of very low safety significance (Green) because the finding was not a design or qualification deficiency, did not result in an actual loss of safety function, was not a loss of barrier function, and was not potentially risk significant for external events. The finding has a cross-cutting aspect in the area of human performance associated with decision making because Entergy personnel did not make safety-significant or risksignificant decisions using a systematic process including entering 2-AOP-ANNUN-1, especially when faced with uncertain or unexpected plant conditions, to ensure safety is maintained. This includes formally defining the authority and roles for decisions affecting nuclear safety, communicating these roles to applicable personnel, and implementing these roles and authorities as designed and obtaining interdisciplinary input and review on safety-significant or risk-significant decisions. |
| Site: | Indian Point  |
|---|---|
| Report | IR 05000247/2012002 Section 1R12 |
| Date counted | Mar 31, 2012 (2012Q1) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.12 |
| Inspectors (proximate) | E Gray J Furia J Laughlin M Catts M Gray M Jennerich O Ayegbiso S Mccarver |
| INPO aspect | |
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Finding - Indian Point - IR 05000247/2012002 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Indian Point) @ 2012Q1
Self-Identified List (Indian Point)
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