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Category:ARCHIVE RECORDS
MONTHYEARML17229A7861998-06-16016 June 1998 Rev 2 to Cable Derating in Conduits W/Fire Barrier Coatings. ML17309A9491998-06-0202 June 1998 Rev 0 to Electrical Cable Ampacity Correction Factors for Thermo-Lag Fire Barriers. ML17309A8961997-06-11011 June 1997 Non-proprietary Rev 0 to ST-257, Structural Evaluation of St Lucie SG Package. IR 05000335/19960041997-05-23023 May 1997 Partially Withheld Draft Ltr Forwarding Draft Insp Repts 50-335/96-04 & 50-389/96-04 on 960218-0330 & Draft Notice of Violation ML20148E8881997-05-21021 May 1997 Monthly Performance Monitoring Audit QSL-PM-96-08, May/June 1996. Encl Partially Deleted ML20141J0861997-05-19019 May 1997 Undated Partially Deleted Package Re Allegation Mgt Sys for Plant.Functional Areas,Including Operations,Safeguards, Offsite Health & Safety & Onsite Health & Safety Discussed ML20137M4951997-04-0101 April 1997 Undated,QSL-MR-96-14, Maint Rule Compliance ML17229A8641997-02-14014 February 1997 Rev 0 to MECH-0088, Transient Temp of SFP Following Full Core Offload. ML20133E3251997-01-10010 January 1997 Press Release II-97-06, NRC Staff Proposes $100,000 Fines Against FPL at Slp ML20133D9801997-01-0707 January 1997 Calculation of Psl LOSP Initiator Event Frequency & Confidence Limits ML17229A1771996-12-18018 December 1996 Rev 1 to Cable Derating in Conduits W/Fire Barrier Coatings. ML20137K7711996-11-30030 November 1996 Monthly Performance Monitoring Audit for Oct/Nov 1996 ML20134M2121996-11-22022 November 1996 Press Release 96-165, NRC Begins First of Series of Design Insps at Nuclear Power Plants ML20134D7471996-10-30030 October 1996 Press Release II-96-89, NRC Schedules Special Insp Exit Meeting at St Lucie Plant,Nrc Also Schedules St Lucie Corrective Action Meeting in Atlanta ML20137L0031996-09-0909 September 1996 Monthly Performance Monitoring Audit for July to Aug 1996 ML17229A0941996-08-30030 August 1996 Rev a to SAIC 05-5049-05-6734-500, Steam Generator Degradation Specific Mgt Leakage Limit Calculation for St Lucie Unit 1. ML20137M2241996-07-0808 July 1996 QSL-PM-96-08, Monthly Performance Monitoring Audit, May/June 1996 ML20137M5321996-04-19019 April 1996 QSL-SEC-96-03, Functional Area Audit of Security & Safeguards Info Control ML17229A1781996-04-10010 April 1996 Rev 0 to Fire Barrier Ampacity Correction Factors Extrapolation of Test Results for 3 Hour Barrier. ML20137M1771996-04-0202 April 1996 Audit Rept QSL-PM-96-02, Monthly Performance Monitoring Audit, Feb 1996 ML20137K9291996-04-0101 April 1996 Star/Pmai Conversion Process QSL-CA-96-05. W/Related Info ML20134B7421996-03-0808 March 1996 Event Tracking & Followup Assignment Sheet of 951106 Event Re Region Draft Info Notice Discussing Series of Difficulties at Plant W/Square D Series 8501 KPD-13 Relays Installed in RS11 Sockets ML20137M9071996-01-10010 January 1996 Quality Assurance Audit Rept QSL-OPS-95-22, Monthly Performance Monitoring Audit, Nov 1995 ML20141D7991996-01-0101 January 1996 Partially Deleted Package Consisting of Personnel Contaminations for 1995,rev 1 to Health Physics Procedure HPP-70,util inter-office Correspondence & Instrument & Control Info ML20137K9351995-09-15015 September 1995 Nuclear Engineering Audit,QAS-JPN-95-01,for June 1995 ML20134B6291995-09-0606 September 1995 Event Tracking & Assignment Sheets of 950818 Event Re Spray Down of Containment ML20134B6241995-08-0909 August 1995 Event Tracking & Follow Up Assignment Sheet of 950802 Event Re UE Declaration Resulting from Two Stages of Reactor Rc Pump Seal Failures w/2 Gpm Identified Leakage ML20137L0851995-08-0808 August 1995 Pmon Activities QAS-PMON-95-5 for June 1995. Related Info Encl ML20137M8031995-08-0303 August 1995 Quality Assurance Audit Rept QSL-OPS-95-10, Radiation Protection Functional Area Audit ML20137M7111995-07-25025 July 1995 Quality Assurance Audit Rept QAS-ENV-95-1, Radiological Environ Monitoring Program & Site Nonradiological Environ Protection Plans Functional Area Audit, 950525-0714 ML17228B2371995-07-14014 July 1995 Stresses for St Lucie Unit 2,PZR Lefm. ML17228B2351995-07-11011 July 1995 Fm Analysis of St Lucie Pressurizer Instrument Nozzle. ML20137M7631995-03-30030 March 1995 Quality Assurance Audit Rept QSL-OPS-95-04, Odcm,Pcp, Effluents Functional Area Audit ML17228B0481995-02-15015 February 1995 Nonproprietary Version of Stresses for St Lucie Unit 2 Pressurizer Lefm. ML17228B0471995-02-13013 February 1995 Nonproprietary Version of Fracture Mechanics Evaluation of St Lucie Pressurizer Instrument Nozzles. ML20134B5381994-11-10010 November 1994 Event Tracking Sheet Re 941023 Event Concerning Potential Containment Bypass Path Thru Lpsi/Naoh Addition Sys.Caused by Design or Installation Error ML20134B5161994-07-26026 July 1994 Event Tracking & follow-up Assignment Sheet of 940714 Event Re Failure of Trip Circuit Breaker 5 to Open ML20134B5611994-06-17017 June 1994 Event Tracking Sheet Re 930625 Event Involving Refueling Water Tank Corrosion ML20134B5351994-06-17017 June 1994 Event Tracking Sheet Re 930414 Event Involving Relay Failures ML20134B5021994-03-22022 March 1994 Package Consisting of Oeab Event Tracking Sheet Re 930416 Event ML20064K7521993-06-0808 June 1993 Package Consisting of St Lucie & Turkey Point 1992 Preliminary Llnl Hazard Estimates for Peak Acceleration ML20137K9661993-02-26026 February 1993 Rept of QA Audit for 921027-930204. Incomplete QA Audit Rept QSL-PCM-96-11 Encl ML20079N2201991-11-11011 November 1991 Responses to NUMARC Survey in Support of NRC License Renewal Rulemaking ML20132F8891985-09-20020 September 1985 Power Plant Exam Results Summary Sheets.Info Deleted ML20129F4831985-05-0909 May 1985 Package of Compilations of Results of Operator Licensing & Requalification Exams ML20134A5681983-06-13013 June 1983 Press Release Discussing 830610 Amend to Facility License Authorizing Full Power Operation.Viewgraphs of 830627 Briefing Re Nuclear QA & of 830627-0701 Site Visit Encl ML19208A6111979-07-26026 July 1979 Discusses Possibility of Obtaining Extension for Commitments Re Responses to IE Bulletin 79-06A 1998-06-02
[Table view] Category:PACKAGE OF NONCODED MATERIAL
MONTHYEARIR 05000335/19960041997-05-23023 May 1997 Partially Withheld Draft Ltr Forwarding Draft Insp Repts 50-335/96-04 & 50-389/96-04 on 960218-0330 & Draft Notice of Violation ML20141J0861997-05-19019 May 1997 Undated Partially Deleted Package Re Allegation Mgt Sys for Plant.Functional Areas,Including Operations,Safeguards, Offsite Health & Safety & Onsite Health & Safety Discussed ML20134B7421996-03-0808 March 1996 Event Tracking & Followup Assignment Sheet of 951106 Event Re Region Draft Info Notice Discussing Series of Difficulties at Plant W/Square D Series 8501 KPD-13 Relays Installed in RS11 Sockets ML20141D7991996-01-0101 January 1996 Partially Deleted Package Consisting of Personnel Contaminations for 1995,rev 1 to Health Physics Procedure HPP-70,util inter-office Correspondence & Instrument & Control Info ML20134B6291995-09-0606 September 1995 Event Tracking & Assignment Sheets of 950818 Event Re Spray Down of Containment ML20134B6241995-08-0909 August 1995 Event Tracking & Follow Up Assignment Sheet of 950802 Event Re UE Declaration Resulting from Two Stages of Reactor Rc Pump Seal Failures w/2 Gpm Identified Leakage ML20134B5381994-11-10010 November 1994 Event Tracking Sheet Re 941023 Event Concerning Potential Containment Bypass Path Thru Lpsi/Naoh Addition Sys.Caused by Design or Installation Error ML20134B5161994-07-26026 July 1994 Event Tracking & follow-up Assignment Sheet of 940714 Event Re Failure of Trip Circuit Breaker 5 to Open ML20134B5611994-06-17017 June 1994 Event Tracking Sheet Re 930625 Event Involving Refueling Water Tank Corrosion ML20134B5351994-06-17017 June 1994 Event Tracking Sheet Re 930414 Event Involving Relay Failures ML20134B5021994-03-22022 March 1994 Package Consisting of Oeab Event Tracking Sheet Re 930416 Event ML20064K7521993-06-0808 June 1993 Package Consisting of St Lucie & Turkey Point 1992 Preliminary Llnl Hazard Estimates for Peak Acceleration ML20079N2201991-11-11011 November 1991 Responses to NUMARC Survey in Support of NRC License Renewal Rulemaking ML20132F8891985-09-20020 September 1985 Power Plant Exam Results Summary Sheets.Info Deleted ML20129F4831985-05-0909 May 1985 Package of Compilations of Results of Operator Licensing & Requalification Exams 1997-05-23
[Table view] |
Text
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l -
{
OEAB EVENT TRACKING SHEET
[o SSb No Sort Specified QUERY > "BENNER" $ Assigned To & Assigned Date >- 06/09/94 & Assigned Date <- 06/09/94 Plcnt:
SAINT LUCIE Unit:
Engineer:
BENNER E.
Evcnt: (p Sh Morning Report:
Briefing:
i I
50.72#: O LER#:
050000009400000 PN#:
Other Notification:
UPRSE #94041811.7 IR 60-556/13-/8 8
sycten: 8CC6 Component: ReReig AMee Ok.
OPERATING MODE SIGNIFICANCE h-Operation A - Reactor Protection System
@ Fuel Cladding 2 - Startup Safety-Related Cooling System 3 - Hot Standby G -
4 - Hot Shutdown D - Reactor Coolant Pressure Boundary 5 - Cold Shutdown E - Containment 6 - Refueling F - Plant Power 7 - Other G - Unexpected Plant Performance H - Other:
CAUSE EVENT TYPE h1-EquipmentFailure SIG -
Significant Event [ b7,2
]
z - Design or Installation Error E0I - Event of Interest 3 - Operating Error D - To Be Determined
)
4 - Maintenance Error
- Other S - External 6 - Other POTENTIAL AO: MO Criterion:
Eg er Approved:
M Section Leader A. Chaffee Branch Chief g
EVENTS ASSESSMENT PANEL First Screening:
N Closure:
significance
Description:
REFUELING WATER TANK CORROSION (SEE ATTACHED PAGE).
QSe3e1o253 U+
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.,~.2GPY
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- f...G v
ETS-02 Page:1 06/17/94 Q3,.
i 94041811.7 ST. LUCIE - Refuelina water tank corrosion
==
Description:==
St. Lucie 1 refueling water tank corrosion could potentially prevent l
having a sufficient source of borated water for the safety injection systera.
LER:
None identified i
50.72:
None identified I.R.: 50-335, 389/93-18 Regional contact: unspecified i
~_
\\
l DOCUMENT LOCATION & NAME: G:\\EJBl\\UPRSE_29.EFR PSE:UPR EVENT FOLLOW-UP ASSIGNMENT SHEET ASSIGNMENT DATE:
06/09/94 ASSIGNED T0:
BENNER E.
i PLANT & UNIT:
SAINT LUCIE. UNIT 1 EVENT DATE:
06/25/93 i
50.72 REPORT NO:
DAILY REPORT DATE/NO:
)
l OTHER REPORT:
UPRSE #940418II.7 i
.Lnspection Report 50-335. -389/93-18 EVENT
SUMMARY
AND SPECIFIC FOLLOW-UP ASSIGNMENT f
REFUELING WATER TANK CORROSION (SEE ATTACHED PAGE).
f DETERMINE DETAILS, PREVIOUS DISPOSITIONS (IF ANY), RISK SIGNIFICANCE (If I
PRACTICAL), PREVIOUS SIMILAR EVENT DISPOSITIONS, AND ENFORCEMENT ACTIONS.
PROPOSED EVENT CLASSIFICATION AND EVALUATE THE NEED FOR GENERIC COMMUNICATION.
INCLUDE THE NUMBER OF HOURS SPENT ON THIS ASSIGNMENT TN THE CLOSE0UT.
CIRCLE THE APPLICABLE CASE:
SAFETY SIGNIFICANCE CLASSIFICATION: OTH YES E01 NO SIG NO A0 N0 t
t GENERIC CONCERN STATUS:
NO IN #
BUL #
GL#
i
[
OR BRIEF:
NO #
CLOSE0VT l
While operators were performing a log data review, they identified a slow loss of water inventory from the 525,000 gallon refueling water tank (RWT)
(Technical Specification minimum is 400,000 gallons).
RWT water inventory had begun to drop by about 0.6 to 1.5 gpm on about June 15, 1993.
The leak was l
nearly constant during the period of discovery and repair.
It was determined that a total of about 55,000 gallons leaked befnre the leak was repaired. The cause of the leakage was a 5-mm hole corroded into the bottom of the RWT.
1 Inspections found no indications of major tank integrity problems.
The licensee repaired the RWT by epoxying an aluminum plate over the hole on July 17, 1993, and intends to institute a more permanent repair at a later date.
l r
The analysis by PNL addressed the potential for a minor leak such as the one experienced (1.5 gpm), and also evaluated the potential for an RWT rupture (100 gpm, maximum makeup capability to the RWT). The risk assessment estimated an increase in core damage frequency (CDF) of 4.4% for the 1.5 gpm leak, and 0.5% for the 100 gpm rupture.
These estimated increases in CDF assume that RWT tank repairs are ineffective due to corrosion within t'-
remaining life of the plant.
RWT level is indicated and annunciated in the control room, as well as being subject to a shiftly surveillance.
The evaluation also indicated that if the RWT does leak, it is highly likely that the plant staff will be effective in maintain',ng adequate RWT level pending completion of repairs.
This event is classified as OTHER.
Approximately three hours (in addition to resources spent by PNL) were spent on this assignment.
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