TXX-5036, Interim Deficiency Rept CP-86-11 Re Component Cooling Water Pump Impeller Linear Indications.Initially Reported on 860623.Requisition for Offsite Repair of Replacement Spare Impeller Being Processed.Next Rept Anticipated by 861205
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| ML20215C633 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 10/01/1986 |
| From: | Counsil W, Keeley G TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| To: | Johnson E NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| References | |
| CP-86-11, TXX-5036, NUDOCS 8610100379 | |
| Download: ML20215C633 (1) | |
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|---|---|
Category:DEFICIENCY REPORTS (PER 10CFR50.55E & PART 21)
MONTHYEARML18016A9011999-04-12012 April 1999
[Table view]Part 21 Rept Re Defect in Component of DSRV-16-4,Enterprise DG Sys.Caused by Potential Problem with Connecting Rod Assemblies Built Since 1986,that Have Been Converted to Use Prestressed Fasteners.Affected Rods Should Be Inspected ML20236V3121998-07-29029 July 1998 Final Part 21 Rept Re Enterprise DSR-4 & DSRV-4 Edgs.Short Term Instability Was Found During post-installation Testing & Setup as Part of Design mod/post-work Testing Process. 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Rocker Arms Machined & Inspected to Incorrect Print & Discovered at Tu.Defective Rocker Arms Recalled from Nuclear Customers.No Corrective Action Required at Respective Utils ML20024H8341993-08-19019 August 1993 Part 21 Rept Re Potential Problem W/Installation of Bushing in gear-type,3 Gpm,Oil Pump Used in Refrigerant Compressors, Mfg by Dunham-Bush.CVI Will Call for Hold Point in Fabrication Process Where Bushing Installed ML20012G3261993-02-18018 February 1993 Part 21 Rept Re Borg-Warner Bolted Bonnet Swing Check Valve Failing to Close During Preoperational Testing.Caused by Internal Body Wall Protrusions Resulting from Intersecting Machine Bores.Design Mods Will Be Implemented ML20128M7821993-02-12012 February 1993 Part 21 Rept Re Failure of 4-inch,150 Bolted Bonnet Swing Check Valve 2CC-0697 to Fully Close During Preoperational Testing.Disc Design Mod Installed.New Disc Component Should Be Installed or Existing Disc Refurbished ML20127P6151993-01-22022 January 1993 Final Deficiency Rept CP-92-019 Re Steam Leak Discovered in Train a RHR Pump Casing Gasket & Seal on 920729.No Apparent Damage to Seal Noted.Item Not Reportable Per 10CFR50.55(e) or Part 21 ML20127L4661993-01-20020 January 1993 Suppl to Final Deficiency Rept CP-89-015,provided on 921130 Re Check Valves 2CC-0693 & 2CC-0697 Failure to Close on 921201.Valves Reworked & Retested Satisfactorily.Supplier Bw/Ip Advised of Test Failures,Cause & Corrective Actions ML20127H2301993-01-15015 January 1993 Part 21 Rept Re Potential Defeat in Component of Dsrv & Dsr Enterprise Standby DG Sys.Starting Air Distributor Housing Assemblies Installed as Replacement Parts at Listed Sites ML20127A1201993-01-0808 January 1993 Supplemental Deficiency Rept CP-92-004 Re Mfg Defects in Printed Circuit Boards for Elgar Class 1E Electric Power Inverters.Initially Reported on 920513.Baseline Data Established for Each Printed Circuit Board ML20127C2191993-01-0707 January 1993 Supplemental Deficiency Rept CP-92-010 & Final Deficiency Rept CP-92-020 Re Cracks in Containment Spray Pump Suction Vent Piping,Initially Reported on 920722 & 1204, Respectively.Unacceptable Configurations Modified TXX-9263, Interim Deficiency Rept CP-92-020 Re Cracks in Containment Spray Sys.Initially Reported on 921204.Detailed Rept Will Be Submitted by 9301111993-01-0404 January 1993 Interim Deficiency Rept CP-92-020 Re Cracks in Containment Spray Sys.Initially Reported on 921204.Detailed Rept Will Be Submitted by 930111 ML20126J5961992-12-31031 December 1992 Part 21 Rept Re Potential Loss of RHR Cooling During Nozzle Dam Removal.Nozzle Dams May Create Trapped Air Column Behind Cold Leg Nozzle Dam.Mod to Nozzle Dams Currently Underway. Ltrs to Affected Utils Encl TXX-9262, Suppl to Final Deficiency Rept CP-87-122 Re Overstress Condition in Various Equipment Nozzles.Initially Reported on 871125.Nozzle Loads Specified for Applicable Equipment Qualified & within Stress Limits Specified in FSAR1992-12-31031 December 1992 Suppl to Final Deficiency Rept CP-87-122 Re Overstress Condition in Various Equipment Nozzles.Initially Reported on 871125.Nozzle Loads Specified for Applicable Equipment Qualified & within Stress Limits Specified in FSAR ML20126E1551992-12-22022 December 1992 Supplemental Deficiency Rept CP-92-007 on QA Program Breakdown of Kranco,Inc Re Parts for Polar Crane Supplied W/O Dedicated QA Program.Initially Reported on 920814.Util Will Not Utilize Supplied Components for Critical Lifts ML20126C7691992-12-18018 December 1992 Final Deficiency Rept CP-92-018 Re Steam Leak Discovered in 3-inch Schedule 80 Lateral Installed SG Blowdown Sys. Initially Reported on 920729.Caused by Porosity in Initial Casting.Item Not Reportable Per 10CFR50.55(e) or Part 21 ML20125D5431992-12-11011 December 1992 Final Deficiency Rept CP-92-016 Re Stems on Borg-Warner manually-operated 3-inch Gates Valves Separating from Disks. Initially Reported on 920911.Addl Administrative Controls Will Be Implemented to Prevent Inadvertent Damage ML20125D3871992-12-0808 December 1992 Interim Deficiency Rept CP-92-019:on 920729,steam Leak Discovered in Train a RHR Pump Casing Gasket & Seal During Hot Functional Testing.Deviation Being Evaluated.Evaluation Will Be Complete by 930125 ML20125A9511992-12-0404 December 1992 Part 21 Rept,Providing Major Milestone Schedule & Portions of Part 21 Open Items List of Issues Currently in Review TXX-9253, Final Deficiency Rept CP-89-015 Re Backleakage Through AFW Check Valves Supplied by Bw/Ip Intl,Inc.Initially Reported on 890519 & Documented in Insp Rept 50-446/92-25. Check Valves Will Be Inspected Prior to Fuel Load1992-11-25025 November 1992 Final Deficiency Rept CP-89-015 Re Backleakage Through AFW Check Valves Supplied by Bw/Ip Intl,Inc.Initially Reported on 890519 & Documented in Insp Rept 50-446/92-25. Check Valves Will Be Inspected Prior to Fuel Load ML20116E2991992-11-0303 November 1992 Part 21 Rept Forwarding CPSES Major Milestone Schedule & Portions of Part 21 Open Items List of Issues That Are Currently in Review ML20116C4631992-10-30030 October 1992 Final Deficiency Rept CP-92-08 Re Train B Diesel Generator Auxiliary Lube Oil Pump Valve.Initially Reported on 920722. 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Caused by THD Measurement Exceeding Westinghouse Equipment Spec Criteria.Not Reportable Per 10CFR50.55(e) or Part 21 ML20115H0771992-10-20020 October 1992 Final Deficiency Rept CP-92-017 Re Improper Position of Seal Water Circulating Ring on Train a RHR Pump Supplied by Intersoll-Rand.Initially Reported on 920921.Motor Raised & Disassembled to Position Circulating Ring Properly ML20115C1781992-10-13013 October 1992 Interim Deficiency Rept SDAR-CP-92-016,re Defect in Two Manually Operated 3 Inch Gate Valves,In Which Stems Separated from Disks & Disks Being Wedged in Seats.Initially Reported on 920911.Internals of Two Valves Replaced TXX-9247, Final Deficiency Rept CP-86-41 Re Effect of Small Break LOCA During Mode 4 Operation.Initially Reported on 860528. Westinghouse Owners Group Program Modified to Eliminate Use of leak-before-break Methodology1992-10-0202 October 1992 Final Deficiency Rept CP-86-41 Re Effect of Small Break LOCA During Mode 4 Operation.Initially Reported on 860528. 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[Table view]CPSES Unit 1 Cycle 8 Colr ML20217G4151999-09-30030 September 1999 Monthly Operating Repts for Sept 1999 for Cpses,Units 1 & 2 ML20212F7671999-09-24024 September 1999 SER Granting Relief Request C-4 Pursuant to 10CFR50.55a(g)(6)(i) for Unit 2,during First 10-year ISI Interval & Relief Requests B-15,B-16 & B-17 Pursuant to 10CFR50.55a(g)(6)(i) ML20216J5701999-09-16016 September 1999 Rev 2 to CPSES Unit 2 Cycle 5 Colr TXX-9920, Monthly Operating Repts for Aug 1999 for Cpses.With1999-08-31031 August 1999 Monthly Operating Repts for Aug 1999 for Cpses.With ML20211M2981999-08-0606 August 1999 Rev 1 to CPSES Fuel Storage Licensing Rept, CPSES Credit for Soluble Boron & Expansion of Spent Fuel Storage Capacity, Consisting of Revised Title Page and 4-1 ML20210U4081999-07-31031 July 1999 Monthly Operating Repts for July 1999 for Cpses,Units 1 & 2 ML20210D8321999-07-23023 July 1999 Safety Evaluation Accepting Relief Requests Re Use of 1998 Edition of Subsections IWE & Iwl of ASME Code for Containment Insp ML20209H7661999-07-15015 July 1999 Safety Evaluation Accepting GL 95-07, Pressure Locking & Thermal Binding of Safety-Related Power-Operated Gate Valves, for Comanche Peak Steam Electric Station,Units 1 & 2 ML20209H2721999-07-0909 July 1999 2RF04 Containment ISI Summary Rept First Interval,First Period,First Outage ML20209H2631999-07-0909 July 1999 2RF04 ISI Summary Rept First Interval,Second Period,Second Outage ML20209G7501999-07-0808 July 1999 SER Finding That Licensee Individual Plant Exam of External Events Complete with Regard to Info Requested by Suppl 4 to GL 88-20 & That IPEEE Results Reasonable Given Design, Operation & History of Comanche Peak Steam Electric Station ML20196L0191999-07-0808 July 1999 Safety Evaluation Granting Request Relief B-6 (Rev 2),B-7 (Rev2),B-12,B-13,B-14 & C-9,pursuant to 10CFR50.55a(g)(6)(i).Technical Ltr Rept Also Encl ML20210J9391999-06-30030 June 1999 CPSES Commitment Matl Change Evaluation Rept 0003,for 970802-990630 ML20209G0801999-06-30030 June 1999 Monthly Operating Repts for June 1999 for Cpses,Units 1 & 2 ML20196J0621999-06-29029 June 1999 Safety Evaluation Supporting Proposed Changes to Emergency Plan Re Licenses NPF-87 & NPF-89 Respectively ML20195G5141999-05-31031 May 1999 Monthly Operating Repts for May 1999 for Comanche Peak Steam Electric Station,Units 1 & 2.With ML20216E0711999-05-21021 May 1999 1999 Graded Exercise - Comanche Peak Steam Electric Station ML20206Q0091999-05-14014 May 1999 Safety Evaluation Accepting GL 92-08, Thermo-Lag 330-1 Fire Barriers, Dtd 921217,for Comanche Peak Electric Station,Unit 1 ML20206H2061999-05-0606 May 1999 SER Accepting Exemption to App K Re Leading Edge Flowmeter for Plant,Units 1 & 2 ML20196L2241999-04-30030 April 1999 Monthly Operating Repts for Apr 1999 for Cpses,Units 1 & 2 ML20205R5701999-04-14014 April 1999 Rev 6 to ER-ME-067, TU Electric Engineering Rept,Evaluation of Thermo-Lag Fire Barrier Sys ML18016A9011999-04-12012 April 1999 Part 21 Rept Re Defect in Component of DSRV-16-4,Enterprise DG Sys.Caused by Potential Problem with Connecting Rod Assemblies Built Since 1986,that Have Been Converted to Use Prestressed Fasteners.Affected Rods Should Be Inspected ML20205J7831999-04-0101 April 1999 Rev 0 to ERX-99-001, CPSES Unit 2 Cycle 5 Colr ML20205N3101999-03-31031 March 1999 Monthly Operating Repts for Mar 1999 for Cpses,Units 1 & 2 ML20204H6371999-02-28028 February 1999 Monthly Operating Repts for Feb 1999 for Comanche Peak Units 1 & 2 ML20205N1481999-02-28028 February 1999 Corrected Monthly Operating Rept for Feb 1999 for CPSES, Units 1 & 2 ML20203A4881999-02-0303 February 1999 Safety Evaluation Granting Requests for Relief B-3 - B-6,C-2 & C-3 for Plant,Unit 2 ML20210J9201999-02-0101 February 1999 CPSES 10CFR50.59 Evaluation Summary Rept 0008,for 970802- 990201 ML20202D0101999-01-27027 January 1999 Safety Evaluation Supporting First 10-yr Interval ISI Program Plan Requests for Relief B-9,B-10 & B-11 for CPSES, Unit 1 ML20199E9961998-12-31031 December 1998 Monthly Operating Repts for Dec 1998 for Cpses,Units 1 & 2 ML20207D6091998-12-31031 December 1998 1998 Annual Operating Rept for Cpses,Units 1 & 2. with ML20197K2371998-11-30030 November 1998 Monthly Operating Repts for Nov 1998 for Cpses,Units 1 & 2 ML20195F3161998-10-31031 October 1998 Monthly Operating Repts for Oct 1998 for Cpses,Units 1 & 2 ML20154M8841998-09-30030 September 1998 Monthly Operating Repts for Sept 1998 for Cpses,Units 1 & 2 ML20154B5741998-09-30030 September 1998 Safety Evaluation Re Licensee Response to GL 96-05, Periodic Verification of Design-Basis Capability of Safety- Related Motor-Operated Valves. 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Log # TXX-5036 File # 10010 909.2 TEXAS UTr.LITIES GENERATING COMPANY I EYWAY TOWER . d'A NORTH OI.IVE RTMEP:T. L.B. 81 = DALLAS. TEXAN 7b201 October 1, 1986
= = = = , %$@$
v OCT - 2 i986 .
Mr. Eric H. Johnson, Diractor i '
Division of Reactor Safety and Projects -
U. S. Nuclear Regulatory Commission J 611 Ryan Plaza Drive, Suite 1000 Arlington, TX 76012
SUBJECT:
COMANCHE PEAK STEAM ELECTRIC STATION (CPSES)
DOCKET NOS. 50-445 AND 50-446 COMP 0NENT COOLING WATER PUMP IMPELLER LINEAR INDICATIONS SDAR: CP-86-11 (INTERIM REPORT)
Dear Mr. Johnson:
On June 23, 1986, we notified you of a reportable item involving linear indications on impellers for the component cooling water (CCW) pumps (see TXX-4871). This is a follow-up interim report on a reportable item under the provision of 10CFR50.55(e). We received an extension in submitting this report from your Mr. T. Westerman until Octoher 3, 1986.
The inspection of the Unit 1, Train A, CCW pump inpeller is currently scheduled for completion in October,1986. Train B impeller will be inspected following the availability of Train A service water (scheduled for mid-November 1986). Upon completion of each inspection, the extent of the required rework will be determined and the repair will be scheduled as required.
We are processing a requisition for the off-site repair of the replacement
" spare" impeller. Upon completion of this requisition processing and approval, the replacement " spare" impeller will be repaired.
We anticipate submitting our next report by December 5, 1986.
Very truly yours, W. G. Co sil By: .
G. S. Keeley e L Manager,NuclearLiMnsing g0%$h b S
- a s>uvussos or rexas ursurses us.scranc courany y Q 'f
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