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ENTERGY FLEET FEEDWATER SYSTEM VULNERABILITY REVIEW

This initiative aims to conduct a detailed vulnerability review of the feedwater systems at Entergy sites, identifying common weaknesses and scheduling corrective actions. By analyzing industry operational experience and site-specific failure reports, the team undertook group walkdowns at IPEC to spot vulnerabilities. Out of 50 identified fleet-wide vulnerabilities, 21 were found applicable to WF3. Actions have been initiated, including the introduction of new SIPDs and modifications to existing systems, ensuring safety and reliability across the fleet.

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ENTERGY FLEET FEEDWATER SYSTEM VULNERABILITY REVIEW

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  1. ENTERGY FLEETFEEDWATER SYSTEM VULNERABILITY REVIEW

  2. Purpose • System Engineering Peer Group Initiative • Fleetwide Effort To: • Perform a Detailed Feedwater Vulnerability Review of Each Site • Identify Common Fleet FW System Vulnerabilities • Get Corrective Actions Scheduled and Funded

  3. Methodology • Reviewed Industry FW System OE and Failure Reports and Plant Specific OE • Performed System Walkdowns as a Group at IPEC • Identified Plant Specific Vulnerability Gaps • Developed Common Fleet FW System Vulnerabilities • Identified Corrective Actions

  4. Fleet Results • 50 Fleet Common FW System Vulnerabilities were Identified • Each Site Ranked Applicability of Each Fleet Common Vulnerability • 21 of the 50 Fleet Common FW System Vulnerabilities were Identified as Applicable to WF3 • Gaps of Each Site’s Applicable Fleet Vulnerabilities were Evaluated and Actions Initiated to Resolve.

  5. WF3 Results • 23 WF3 Site Specific Actions Initiated • One New SIPD (1307) Initiated to Modify MFIV Tubing. • Two Existing Modification SIPDs MFIV Accumulator Pressure Switch Mod SPID 310 and ESFAS SPV Mod SIPD 549 • One Repetitive Capital SIPD (196) Revised to Include New PM for FW Pump Inspection

  6. WF3 Results Cont. • Two Obsolete Equipment Issue (FW Governor Controller) included with SIPD 63 Digital FW Control & (FWPT Vibration Instrumentation) include in SIPD 58 Main Turbine Vibration Instrumentation • Remaining Actions to be Completed by WO Process

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