What is your IST Organizational Culture like?by

NextEra Energy Seabrook Station LLCBob Parry, Tim Couture, and Debbie Masters

Inservice Test Owner’s Group (ISTOG) MeetingDecember 2010

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• Organizational Culture – the shared basic assumptions that are developed in an

organization as it learns and copes with problems.

– the basic assumptions that have worked well enough to be considered valid are taught to new members of the organization as the correct way to perceive, think, act, and feel.

• Safety Culture– An organization’s values and behaviors – modeled by its leaders

and internalized by its members – that serve to make nuclear safety the overriding priority.

INPO’s Principles for a Strong Nuclear Safety Culture

Safety Culture

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• Who owns the IST Issues?– IST Engineer?– Component Engineer?– System Engineer?– Maintenance Engineering or even from a Broke/Fix standpoint, Maintenance?

• Each site will have their own unique issues, or culture.– Work in progress, constantly evolving as we address issues

• Detailed Program Documents will help improve your IST Culture:– IST Program Bases Document (LAN) to show what is/what is not/and why.– IST Database (LAN) with adequate depth of content.– IST Implementing Procedures – Generic, Pump, Valves.– Visible Interface with other key groups on site.

IST Culture – IssuesA Team Effort?

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• Instruments used for IST out of tolerance – Adverse trend? What is the interval? First time event?

• Stroke Time – What is the trend? How to know when it is adverse – what rules are applied?

• IST Pump - Close to ALERT value, or fails surveillance test – What was the trend? What/who is tracking the issue?

• Relief Valve fails setpoint test – Repeat? Contingency? Expanded Scope? What other valves are impacted? What S/N is involved?

• Relief Valve not tested within required timeframe – How and who is tracking? Change in model?

• Check Valves – How to describe Check Valve Condition Monitoring activities – Forward, reverse, interval, PMT issues?

IST Culture Some Seabrook issues where

we are working to get ahead of the issue

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IST Culture – IssuesInstrumentation

• Pumps– Recent IC Design calculations for Accuracy– IC Maintenance Procedures or PM Tasks scheduled in Work

Management process– Protected steps for key attributes – M&TE, intervals, when to

adjust, etc.– Known locations for this info.– Reviewed by IST Group for acceptability.– Adequate Technical Rigor used in these reviews? Partnering

with Pump and System Engineer for margin issues? (KPIs)– Database feature – select by instrument, historical sheet

showing AF/AL results, past AR’s and corrective actions.– OX1456.86 contains all relevant acceptance criteria info – used

as the technical bases for Operations.

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IST Culture – IssuesStroke Time Variations

• What has the historical trend been? Slow and gradual?, versus sudden step? Margin issue?

• How determined? “At- a-glance”, or graphical, or statistical analysis?

• When does troubleshooting begin? Some valves, like AOVs, require partnering with Program Engineer (KPIs)

• Immediate retest performed?

• Control Room or local?

• Database feature – graphical presentation

• OX1456.81 contains all relevant acceptance criteria information – used as our technical bases for Operations.

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IST Culture – IssuesPump Issues

• Hydraulic Condition – what is the bases?

– Degradation taken in long term view (e.g. stair step versus basement view), Head curve as original test bases? (KPIs)

– Scatter issues used to improve test methodology?

• Mechanical Condition – – Smooth running pumps and use of analysis being identified as margin issue?– Design issues identified with corrective actions? – Operations interface – ON LINE versus Outage– Baseline procedure protocols

Shop head Curve test with vibrations as practical

In situ Head Curve performed with IST (patience)

CBM taking vibrations and performing analysis

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IST Culture – IssuesPump Issues

• IST Database features– Reference Values

– Test Results

– Instrumentation

• OX1456.86

• SS-EE-98-006 Engineering Systems Minimum Performance

From Program Plan

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IST Culture – IssuesRelief Valve Issues

• Database demonstration– Spreadsheet Concept

Group,

Model,

AF/AL,

S/N,

when tested,

Contingency and outage sequencing

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IST Culture – IssuesRelief Valve Issues

• RV Issues– Some Design changes to replace obsolete valve designs

Change in trending– Standardization of tail pipe to permit interchangeability– Outage Planning for failures – train rolls, additional testing.– Not much expanded acceptance criteria (PZRs, MSSVs for AF

testing)– Hot/Hot Testing– ES1850.011 Procedure, EX1804.044 for IST Valves– Tracking of AL post refueling Outage??

In house ARPZRs shipped

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IST Culture – IssuesCheck Valve Condition Monitoring Issues

• Two separate databases– One on LAN and one in Group Drive

– Needed increased visibility

• Database Demonstration– Analysis bases

– Forward Activity – by activity/interval

– Reverse Activity – by activity/interval

• Technical Rigor– Two person review – next outage focus.

• Instrumentation issues – instrument accuracy

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IST Culture – IssuesCheck Valve Condition Monitoring Issues

IST Database denotes the valve is in Check Valve Condition Monitoring

Active button opens the Check Valve Condition Monitoring Database for information on the Check Valve

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IST Culture – IssuesCheck Valve Condition Monitoring Issues

Initial Grouping of the valve including the date for inclusion

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IST Culture – IssuesCheck Valve Condition Monitoring Issues

Valve Information – future enhancements may include link to valve picture and location map

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IST Culture – IssuesCheck Valve Condition Monitoring Issues

Maintenance History to review

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IST Culture – IssuesCheck Valve Condition Monitoring Issues

Maintenance and Test History has been reviewed as well as operating experience from the industry and vendor.

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IST Culture – IssuesCheck Valve Condition Monitoring Issues

Reverse Test done during PIV testing on a refueling (18 month) frequency

Instrumentation Information

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IST Culture – IssuesCheck Valve Condition Monitoring Issues

Recorded Test Results – future enhancement to graph test results.

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IST Culture – IssuesCheck Valve Condition Monitoring Issues

Test Interval – looks both past and future

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IST Culture – IssuesCheck Valve Condition Monitoring Issues

Forward Flow Activity – Frequency, OPS activity and OPS procedure

Instrumentation Information

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IST Culture – IssuesCheck Valve Condition Monitoring Issues

Recorded Test Results

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IST Culture – IssuesCheck Valve Condition Monitoring Issues

Test Interval – looks at the past as well as scheduling in the future

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IST Culture – IssuesCheck Valve Condition Monitoring Issues

• Post Maintenance Testing issues– Planner Interface

– Component Engineer interface

– Outage Planning – correct sequencing

• Performance Monitoring– PWR PIV testing performance based

– Trending for next outage issues

– Transfer to OPS for SI Test Header Operation

Not just getting to SAT

Sequencing of the testing – test second outs before first outs get seated by RCS Pressure.

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IST Culture – IssuesTrending vs. Data Entry

• Data Entry does not equal trending

• Technical Specification compliance – verification of the activity and that it meet acceptance criteria

• Performance Monitoring review - multi layered– Identify adverse trend

– Focus on next outage activities

– Adjust “knowledge” of component performance

– Interface with System, Component, or other Program Engineers

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IST Culture – IssuesSummary

• Evolving effort

• Highlights only – could not get into all of the details

• Welcome comments or questions

• Welcome recommendations