Email from S. Shields (NRR) to OPEX Daily Report - Braidwood, Et Al, Subject: DIER - Daily Industry Event Report for Monday, July 19, 2004ML080290621 |
Person / Time |
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Site: |
Palisades, Palo Verde, Braidwood, Clinton, Quad Cities, Zion, LaSalle ![Constellation icon.png](/w/images/b/be/Constellation_icon.png) |
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Issue date: |
07/16/2004 |
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From: |
Shields S Office of Nuclear Reactor Regulation |
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To: |
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References |
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FOIA/PA-2008-0046 |
Download: ML080290621 (1) |
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Category:E-Mail
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3.5.2, SIT Shutdown; 3.6.5, Containment Air Temperature; and SRs for TS 3.5.1, SITs Operating ML23328A0132023-11-22022 November 2023 Supplement - Security Rule Exemption Request ISFSI Docket No. Reference (L-2023-LLE-0028) ML23331A8922023-11-22022 November 2023 Supplement - Braidwood Security Rule Exemption Request ISFSI Docket No. Reference ML23338A1192023-11-21021 November 2023 NRR E-mail Capture - Draft Request for Additional Information Quad Cities Relief Request I5R-26 ML23321A2012023-11-17017 November 2023 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request - Acceptance of Proposed Alternative for Examination of Pressurizer Circumferential and Longitudinal Shell-to-Head Welds and Nozzle-to-Vessel Welds (L-2023-LLR-0062) ML23311A1692023-11-0707 November 2023 NRR E-mail Capture - Constellation - Fleet Request - Acceptance of Proposed Alternative for Examinations of Exam Categories B-B, B-D, and C-A SG Pressure Retaining Welds and Full Penetration Welded Nozzles (L-2023-LLR-0055 and L-2023-LLR-00 ML23311A1682023-11-0707 November 2023 NRR E-mail Capture - Constellation - Fleet Request - Acceptance of Proposed Alternative for Examinations of Examination Category C-B Steam Generator Nozzle-to-Shell Welds and Nozzle Inside Radius Sections (L-2023-LLR-0053 and L-2023-LLR-005 ML23304A0162023-10-30030 October 2023 NRR E-mail Capture - Final RCI - Constellation Energy Generation, LLC - LaSalle 1 & 2 - Exemption from Security Rule (L-2023-LLE-0028) ML23304A0222023-10-30030 October 2023 NRR E-mail Capture - Final RCI - Constellation Energy Generation, LLC - Braidwood 1 & 2 - Exemption from Security Rule (L-2023-LLE-0030) ML23298A1232023-10-25025 October 2023 NRR E-mail Capture - Palo Verde, Unit 1 - RAIs for Relief Request 70, Proposed Alternatives for Pressurizer Lower Shell Temperature Nozzle ML23271A0612023-09-26026 September 2023 NPS, Units 1 and 2, Reference for ISFSI from Zion Solutions ML23268A0022023-09-22022 September 2023 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request - Acceptance of License Amendment Request to Adopt TSTF-264-A, Revision 0 ML23264A7992023-09-21021 September 2023 NRR E-mail Capture - Final RAI - Constellation Energy Generation, LLC Fleet Request License Amendment Request to Adopt TSTF-580, Revision 1 ML23262A7432023-09-19019 September 2023 NRR E-mail Capture - Quad Cities Nuclear Power Station, Units 1 and 2 Acceptance of Relief Request I5R-26 ML23261A0032023-09-15015 September 2023 NRR E-mail Capture - NRC Acceptance Review of Clinton Amendment Request to Revise Timing of Reactor Water Cleanup Isolation Valves ML23243B0082023-08-31031 August 2023 NRR E-mail Capture - Action: Opportunity to Review and Comment on a New NRC Information Collection, 10 CFR Part 50.55a, Codes and Standards (3150-XXXX) ML23237B3972023-08-24024 August 2023 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request - Acceptance of Alternative Request to Use Updated BWRVIP Guidelines ML23230B1682023-08-18018 August 2023 NRR E-mail Capture - Clinton Power Station, Unit 1, Preliminary Requests for Additional Information (Rais) Related to the Amendment Request to Revise Diesel Generator Starting Air Technical Specifications ML23233A0132023-08-18018 August 2023 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Acceptance Review of License Renewal Commitment for Pressurizer Surge Line Welds Inspection Program to Manage Environmentally Assisted Fatigue ML23233A1502023-08-11011 August 2023 Extent of Condition Request for 2023 Confirmatory Survey ML23219A2142023-08-0404 August 2023 NRR E-mail Capture - NRC Acceptance Review of Clinton Request for Partial Site Release ML23220A0512023-08-0303 August 2023 NRR E-mail Capture - Re Palo Verde 1, 2, and 3 - SUNSI Review of UFSAR, Rev. 22 ML23202A0162023-07-20020 July 2023 NRR E-mail Capture - Palo Verde 1, 2, and 3 - Acceptance Review of LAR to Revise TSs 3.5.1, SITs - Operating; 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[Table view] |
Text
Eder, David C.
bm: Shields, Stephen T. r'zx Friday, July 16, 2004 3:53 PM OPEX Daily Report - Braidwood; OPEX Daily Report - Clinton; OPEX Daily Report - Dresden; OPEX Daily Report - LaSalle; OPEX Daily Report - Quad Cities; OPEX Daily Report - Byron; OPEX Daily Report - Zion; OPEX Daily Report - Miscellaneous; OPEX Daily Report - Cantera; OPEX Daily Report - Limerick/Kennett Square; OPEX Daily Report - TMI; OPEX Coordinators
Subject:
DIER - Daily Industry Event Report for Monday, July 19, 2004
!1. SIGNIFICANT EVENTS (AS DEFINED IN 10 CFR 50.72) REPORTS FILED IN THE PAST 24 HOURS EVENT #40874 FACILITY PALO VERDE EVENT DATE : 07/14/2004 EVENT TIME 16:30 [MST]
ALL THREE UNITS EXCEEDED THE MAXIMUM POWER LEVEL SPECIFIED IN THEIR OPERATING LICENSE "PALO VERDE NUCLEAR GENERATING STATION UNITS 1, 2, AND 3 DETERMINED THAT THE MAXIMUM POWER LEVEL SPECIFIED IN OPERATING LICENSE CONDITION 2.C(I) WAS EXCEEDED IN THE PAST DUE TO A NONCONSERVATIVE FEEDWATER FLOW INPUT IN THE SECONDARY CALORIMETRIC CALCULATION SINCE INSTALLATION OF ULTRASONIC FEEDWATER FLOW MEASUREMENT (UFM) INSTRUMENTATION IN UNITS 1 AND 3 IN 1999 AND 2000 IN UNIT 2. ON 06/09/2004, THE VENDOR (CALDON) NOTIFIED PALO VERDE P A LETTER THAT THERE MAY BE AN ERROR OF UP TO ONE TO ONE AND ONE-HALF CENT IN THE FLOW MEASUREMENT. AS A COMPENSATORY MEASURE, ALL THREE UNITS UCED POWER AND REMOVED THE UFM FROM SERVICE. FEEDWATER FLOW VENTURIS ARE USED FOR MEASUREMENT WITH THE UFM OUT OF SERVICE. ENGINEERING EVALUATION CONCLUDED ON 07/14/2004 THE MAXIMUM PALO VERDE SPECIFIC CALORIMETRIC ERROR WAS APPROXIMATELY 38.76 MW IN UNITS 1 AND 3 AND 39.90 MW IN UNIT 2 OR APPROXIMATELY 1 PERCENT.
THE ERROR RESULTED IN CORE POWER LEVELS ABOVE THE OPERATING LICENSE LIMIT OF 3876 MW THERMAL IN UNITS 1 AND 3 AND THE OPERATING LICENSE LIMIT OF 3990 MW THERMAL IN UNIT 2 WHILE THE UFM WAS IN SERVICE.
THIS REPORT IS BEING MADE BECAUSE A REVIEW OF HISTORICAL OPERATING DATA REVEALED THAT THE MAXIMUM POWER LEVEL WAS EXCEEDED.
THE PALO VERDE SAFETY ANALYSES BOUND A POWER LEVEL OF 102 PERCENT. POWER LEVEL DID NOT EXCEED THE SAFETY ANALYSIS.
NO ESF ACTUATIONS OCCURRED AND NONE WERE REQUIRED AS A RESULT OF THE MISCALIBRATION. THERE WERE NO OTHER STRUCTURES, SYSTEMS, OR COMPONENTS THAT WERE INOPERABLE AT THE TIME OF DISCOVERY THAT CONTRIBUTED TO THIS CONDITION.
THERE WERE NO FAILURES THAT RENDERED A TRAIN OF A SAFETY SYSTEM INOPERABLE AND NO FAILURES OF COMPONENTS WITH MULTIPLE FUNCTIONS WERE INVOLVED. THE EVENT DID NOT RESULT IN THE RELEASE OF RADIOACTIVITY TO THE ENVIRONMENT AND DID NOT ADVERSELY AFFECT THE SAFE OPERATION OF THE PLANT OR HEALTH AND SAFETY OF THE PUBLIC."
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