ML20085D687
ML20085D687 | |
Person / Time | |
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Site: | Sequoyah |
Issue date: | 07/21/1983 |
From: | Green H TENNESSEE VALLEY AUTHORITY |
To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
References | |
RO-83-03, RO-83-3, NUDOCS 8307290039 | |
Download: ML20085D687 (2) | |
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Category:REPORTABLE OCCURRENCE REPORT (SEE ALSO AO LER)
MONTHYEARML20141C4881997-06-18018 June 1997
[Table view]Special Rept 97-03:on 970529 Fire Barriers Were Impaired to Provide Backup Fire Protection Capabilities IAW TS Before Removing Sys from Svc.Sys Impaired to Implement Mods for Upgrade of HPFP Sys.Fire Watch Established ML20138F8571997-04-28028 April 1997 Special Rept 97-01:on 970322,Unit 1 Reactor Bldg Biological Shield Blocks Removed & Containment Vessel Equipment Hatch Opened to Facilitate Movement of Equipment,Matl & Personnel Between Bldgs.Roving Firewatch Established ML20134L6991996-11-15015 November 1996 Special Rept 96-04:on 961012,lower Airlock Located on Elevation 690 in Auxiliary Bldg Breached.Caused by Movement of Personnel & Equipment Between Buildings.Established Roving Firewatch Until Barrier Reestablished on 961021 ML20112E5051996-05-22022 May 1996 Special Report 96-03:on 960420,biological Shield Doors Removed & Equipment Hatch Opened.Caused by Need to Facilitate Movement of Equipment,Material & Personnel.Roving Fire Watch Established ML20106J8561996-04-0808 April 1996 Special Rept 96-02 on 960305,fire Detector in Fan Room on Elevation 714 of Auxiliary Bldg Nonfunctional for Period Greater than Allowed by TS Due to moisture-induced Oxidation on Contacts.Fire Watch Established ML20100N3091996-02-29029 February 1996 Special Rept:On 960131,auxiliary Bldg Pipe Sleeve,Mark 1860 on Elevation 669 Breached.Roving Fire Watch Established After Fire Detectors on One Side of Penetration Verified Operable ML20096C5281996-01-0909 January 1996 Special Rept 95-10:on 951127,alarm Function for Fire Detection Zone 277 Bypassed,Rendering Fire Detectors Inoperable.Fire Watch Patrol Was Established within One Hour of Fire Zone Becoming Inoperable ML20094L7351995-11-13013 November 1995 Special Rept 95-09:on 951006,auxiliary Bldg Mechanical Sleeve Was Breached Beyond 7-day LCO Due to Tubing Inside Penetration Was Crossed & Sealant Was Removed from Sleeve. Unacceptable Seal Matl Was Removed ML20094D4131995-10-26026 October 1995 Special Rept:On 951006,notified NRC of SG Tube Insps That Fall Into Category C-3 Due to Detection of Circumferential crack-like Indications During ISI at TSP Intersections Associated W/Dents ML20093G2951995-10-11011 October 1995 Special Rept:On 950606,determined That Waste Gas Analyzer & Monitors H Concentrations Being Operated Incorrectly.Range 3 Successfully Calibrated by Comparing Analyzer Readout to Grab Sample Results ML20093B1561995-10-0303 October 1995 Special Rept 95-08: on 950909,Unit 1 Reactor Bldg Biological Shield Blocks Located on Auxiliary Bldg Removed & Equipment Hatch Opened.Roving Fire Watch Immediately Established & Fire Detectors on One Side of Breach Verified Operable ML20092H0431995-09-14014 September 1995 Special Rept 95-06:on 950810,auxiliary Bldg Sleeve Mark 1855 & 1856 Penetrating Floor Elevation Breached.Fire Barriers Will Be Reestablished After Completion of Mod Activities ML20092H0381995-09-14014 September 1995 Special Rept 95-04:on 970707,noncompliance w/10CFR50,App R, Section II.G.2 Requirements Documented on Problem Evaluation Rept.Affected Rooms Being Covered by Hourly,Roving Fire Watch Patrol ML20086T0771995-07-27027 July 1995 Special Rept:On 950621,auxiliary Bldg Pipe Sleeve,Mark 210 on Floor Elevation 669 Was Breached.Roving Fire Watch Was Established.Repair Work Rescheduled for Completion in Aug 1995 ML20086T5681995-07-26026 July 1995 Special Rept 95-04:on 950707,separation of Cables & Equipment & Associated Nonsafety Circuits of Redundant Trains by Fire Barrier Having 3-h Rating Occurred.Affected Rooms Being Covered by Roving Fire Watch Patrol ML20083M2881995-05-0909 May 1995 Special Rept 95-03:on 950404,auxiliary Bldg Pipe Sleeve Located on Floor Elevation 690 Breached to Support Routing of Drain Hose.Roving Fire Watch Established & After Fire Detectors on One Side of Penetration Verified Operable ML20082D3581995-03-24024 March 1995 Special Rept:On 950305,fire Detector Near RCP Declared Inoperable.Cause Unknown.Unit 1 Lower Containment Air Temp Being Monitored Frequently Until Detector Restored to Operable Status ML20080H6091995-02-17017 February 1995 Special Rept 95-01:on 950119,fire Barrier Intentionally Removed from Svc to Support Planned Work Activities Associated W/Replacement Batteries in 24/48 Volt Battery Room ML20080C1301994-12-0202 December 1994 Special Rept 94-13:on 941109,three Control Bldg Cable Tray Penetrations Breached & Will Be Breached in Excess of TS Allowable Timeframe to Support Mod Activities Associated W/ Cable Installation to Secondary Alarm Station ML20073F5291994-09-23023 September 1994 Special Rept:On 940923,provides Several Fire Barrier Penetrations That Have Been Intentionally Removed from Service to Support Unit 2 Cycle 6 Refueling Outage Activities ML20073B8411994-09-15015 September 1994 Special Rept 94-11,providing Details Re Fire Barrier Wall & Fire Barrier Penetration Intentionally Rendered Nonfunctional as Fire Barriers to Support Snp Unit 2 Cycle 6 Refueling Outage Activities.Roving Fire Patrol Established ML20072R1871994-08-29029 August 1994 Special Rept:On 940802 Provides Details Re Electrical Penetrations That Are Considered to Be Nonfunctional as Fire Barriers ML20072G1181994-08-17017 August 1994 Special Rept 94-09:on 940711,discovered That Fire Barrier Door A-182 Damaged & Nonfunctional as Fire Barrier.Caused by Broken Tack Welds.Cause of Broken Tack Welds Cannot Be Determined.New Door Ordered ML20071Q6851994-08-0101 August 1994 Special Rept:On 940707,several Fire Barrier Penetrations & Fire Barrier Doors Intentionally Removed from Service to Support Unit 2 Outage Discovered Inoperable for Period Greater than TS Limits ML20071L7351994-07-27027 July 1994 Special Rept 94-07:on 940621,fire Detection Instrument in Zone 116 for Auxiliary Bldg Cask Loading Area Inoperable for Period Greater than Allowable TS Timeframe. Hourly Fire Watch Patrol Established ML20070F8341994-07-14014 July 1994 Special Rept 94-06:on 940531,photoelectric Detection Instrumentation in Lower Compartment Cooler Areas Inoperable.Caused by Trouble Alarms on Pyrotronics Sys.Air Temp Is Being Monitored Every Hour ML20149E2551994-05-23023 May 1994 Special Rept 94-05:on 940407,Unit 2 Fire Detectors Declared Inoperable,On 940416,fire Protection Sprinkler Sys in ABGTS Filter Housing Area Declared Inoperable & on 940415,fire Protection Hose Station in ERCW Bldg Taken Out of Svc ML20065Q6021994-04-22022 April 1994 Special Rept 94-04:on 940314,fire Detection Instruments in Fire Zone 116 for Auxiliary Bldg Cask Loading Area Inoperable for Period Greater than Allowable TS Timeframe. Hourly Fire Patrol Established to Inspect Loading Area ML20064N2101994-03-22022 March 1994 Special Rept 94-03:on 940216,fire Barrier Wall Between Unit 1 & 2 Board Rooms on Elevation of Auxiliary Bldg Breached & LCO 3.7.12 Entered.Patrol Will Be Maintained Until Mod Completed & Wall Reestablished as Functional Fire Barrier ML20063L6411994-02-25025 February 1994 Special Rept 94-02 Re Six Fire Barriers Nonfunctional for Period of Time Greater than TS Allowable Timeframe in Support of Mod Activities.Fire Detectors Verified Operable & Roving Fire Watch Established ML20063K8531994-02-14014 February 1994 Special Rept 94-01:on 931230,two Thermal Fire Detectors in Fire Zone 277 Removed from Svc.Detectors Removed to Facilitate Removal & Repair of ERCW Pump M-B.Roving Fire Watch Established.Detectors Returned to Svc on 940123 ML20063A3941994-01-18018 January 1994 Special Rept 93-24:on 931218,penetrations 1602,1731,60A & 860 Intentionally Breached to Facilitate Installation of Design Mod.Fire Detectors on One Side of Penetrations Verified Operable & Roving Fire Watches Established ML20063A6381994-01-13013 January 1994 Rev 1 to Special Rept 93-16:on 921228,930821 & 28 DG 2A-A Failures Occurred Due to Lack of Adequate Internal Wiring, Actuators Restoring Spring Compression Relaxing & Less than Desired Testing.Supports for Internal Wiring Installed ML20062M0991993-12-27027 December 1993 Special Rept 93-23:on 930712,failure to Functionally Test Fire Protection Instrument Panel,Associated Fire Detectors & to Comply W/Ts Action Statements.Directive Issued Requiring Periodic Test Coordinator ML20058A8621993-11-18018 November 1993 Special Rept 93-22:on 931026,Fire Door A-156A Breached to Permit Temporary Electrical Cables to Be Routed from Existing Card Reader to Reactor Access Room.Fire Door A-156A Expected to Be Returned to Functional Status in Dec 1993 ML20059A9681993-10-20020 October 1993 Special Rept 93-21:on 930924,fire Barrier Door A-36 Intentionally Breached.Fire Door Barrier Will Be Breached in Excess of TS Allowable Timeframe & Is Expected to Be Returned to Functional Status in Dec 1993 ML20057E9021993-10-0808 October 1993 Special Rept 93-17:on 930903,LCO 3.7.12 Entered for Fire Barrier Being Nonfunctional for Period Greater than Allowed by Ts.Fire Detectors on One Side of Nonfunctional Fire Barrier Verified Operable ML20057F3421993-10-0808 October 1993 Special Rept 93-20:on 930927,LCO 3.7.11.1 Entered When Portion of Auxiliary Bldg Fire Header Isolated & Fire Pumps 2A & 2B Removed from Svc in Order to Perform Surveillance Test on Fire Pumps 1A & 1B.Test Completed & LCO Exited ML20057E9261993-10-0707 October 1993 Special Rept:On 930924,LCOs 3.7.11.1,3.7.11.2 & 3.7.11.4 Entered When Portion of Fire Header in Auxiliary Bldg Removed from Svc in Order to Perform Maint.Fire Suppression Water Sys Returned to Svc on 930925 & LCOs Exited ML20057D6101993-09-28028 September 1993 Special Rept 93-18:on 930916,LCOs 3.7.11.1,3.7.11.2 & 3.7.11.4 Entered When Fire Header in Auxiliary Bldg Removed from Svc as Result of Maint Activities for Repair & Replacement of Leaking Lines.Repairs Completed on 930919 ML20057B5361993-09-0202 September 1993 Special Rept 93-15:on 930902,declared Isolation Valve in One of Four Main HPFP Water Suppression Flow Paths Inoperable Upon Valve Failure of Annual Surveillance Operability Test. WR Written to Inspect,Repair or Replace Valve ML20056H2331993-09-0101 September 1993 Special Rept 93-08:on 930820,LCO 3.7.11.1 Was Entered Due to Inoperable Valve.Work Request Initiated to Inspect & Correct Valve Problem.Valve Cycled & Returned to Operable Status ML20056D6461993-08-12012 August 1993 Special Rept 93-14,fire Barriers Nonfunctional for Period That Exceeded Allowable TS Timeframe,After Being Intentionally Breached.Fire Detectors on One Side of Breaches Verifed Operable & Roving Fire Watches Established ML20046B3981993-07-28028 July 1993 Special Rept 93-13:on 930715,fire Header in Auxiliary Bldg Removed from Svc as Result of Maint Activities in Process of Repairing & Replacing Leaking Lines.Fire Watches & Backup Fire Suppression Water Sys Established ML20046A5341993-07-19019 July 1993 Special Rept 93-09 Provides Detail Re 19 Fire Protection Barriers,Detection Sys & Water Suppression Sys Being Impaired for Period Greater than TS Allowable Timeframe ML20045H9681993-07-16016 July 1993 Special Rept 93-12:on 930621,portion of Fire Header in Auxiliary Bldg Removed from Svc & Sys Not Restored to Operability within TS Required Time Period.Piping Repaired & Incident Investigation Initiated ML20045E6881993-06-25025 June 1993 Special Rept 93-07:on 930519,0521 & 0527,fire Doors A-146 & A-44 & A-196,respectively,were Breached Open.On 930525, Mechanical Sleeve C2/J Breached to Permit Cable Pulling. Detectors Verified Operable & Fire Watch Established ML20045C9211993-06-17017 June 1993 Special Rept 93-06:on 930511,HPFP Sys Operated W/Only One Operable HPFP Pump for Period,Exceeding TS 3.7.11.1 Allowable Timeframe Due to Maint.Dg 2A-A Returned to Svc on 930519 & EP Supply Reestablished to 2A-A HPFP Pump ML20044G5521993-05-27027 May 1993 Special Rept 93-05:on 930426,fire Barrier for Mechanical Sleeve Between 480-volt Shutdown Board Rooms 1B1 & 1B2 Breached.Caused by Unavailability of Fire Retardant Sealant.Roving Fire Watch Established ML20036B5031993-05-17017 May 1993 Special Rept 93-04:on 930415,Unit 1 East Valve Room, Elevation 706 Breached to Support Refueling Outage Activities for Timeframe Greater than Allowed by Ts.Fire Detectors on One Side of Penetration Verified Operable 1997-06-18 Category:TEXT-SAFETY REPORT MONTHYEAR05000327/LER-1999-002-03, :on 990916,EDG Started as Result of Cable Being Damaged During Installation of Thermo-Lag for Kaowool Upgrade Project.Caused by Inadequate pre-job Briefing. Involved Individuals Were Counseled on Event1999-10-15015 October 1999
[Table view]
1999-09-30 |
Text
TENNESSEE VALLEY AUTHORITY
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1750 Chestnut Street Tower II 0]NL eg G!s Ag*.88 July 21, 1983 Mr. James P. O'Reilly, Director U.S. Nuclear Regulatory Commission Suite 2900 101 Marietta Street, NW Atlanta, Georgia 30303
Dear Mr. O'Reilly:
TENNESSEE VALLEY AUTHCRITY - SEQUOYAH NUCLEAR PLANT UNIT 1 - DOCKET NO. 50-327 - FACILITY OPERATING LICENSE DPR SPECIAL REPORT 83-03 i
The enclosed report provides details concerning penetration fire barriers being non-functional for a period in excess of seven days. This report is submitted in accordance with Sequoyah unit 1 Technical Specifications 3.7.12 and 6.9.2.
Very truly yours, TENNESSEE VALLEY AUTHORITY
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$05 p H. J. Green f
Director of Nuclear Power Enclosure cc (Enclosure):
Document Control Desk U.S. Nuclear Regulatory Commission Washington, D.C.
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l Records Center Institute of l'uclear Power Operations Suite 1500 1100 Circle 75 Parkway Atlanta, Georgia 30339 NRC Inspector, NUC PR, Sequoyah i
8307290039 830721 g]Q-}4COMe DR ADOCK 05000
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An Equal Opportunity Employer
SEQUOYAH NUCLEAR PLANT SPECIAL REPORT 83-03 UNIT 1 Event Description Two mechanical penetrations in the auxiliary building (elevations 714 and 728) were breached for a period greater than seven (7) days. The penetrations were breached at 2100 EDST on 06/16/83 and both were resealed at 2240 EDST on 06/23/83.
Probable Cause The cacan of the event has been attributed to the lack of communication between personnel. The craft foreman who was in charge of the work requiring the penetrations to be breached took leave but failed to inform his relief of the breached penetrations. A routine inspection of work locations revealed the breached penetrations, and they were sealed at 2240 EDST on 06/23/83.
Corrective Actions Foremen have been instructed to post copies of all breaching permits in the general foremen's office so that all foremen will be aware of the status of all breached penetrations. A firewatch as required by technical specification 3.7.12 was initiated upon discovery.
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