ML20055C630
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| ML20055C630 | |
| Person / Time | |
|---|---|
| Site: | Rancho Seco |
| Issue date: | 05/21/1990 |
| From: | Keuter D SACRAMENTO MUNICIPAL UTILITY DISTRICT |
| To: | Martin J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| 90-09, 90-9, AGM-NUC-90-151, NUDOCS 9005290214 | |
| Download: ML20055C630 (3) | |
Similar Documents at Rancho Seco | |
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Category:REPORTABLE OCCURRENCE REPORT (SEE ALSO AO LER)
MONTHYEARML20055F8591990-07-16016 July 1990
[Table view]Special Rept 90-11:on 900613,06,25,18,21 & 28,fire Barriers Breached More than 7 Days & Not Made Operable in 14 Days. Corrective Actions:Operability of Fire Detectors Verified on One Side of Breached Barriers ML20055C6301990-05-21021 May 1990 Special Rept 90-09:on 900424,25,30,31 & 0502,fire Barriers Inoperable for More than 7 Days,Per Tech Spec 3.14.6.2 Requirement.Hourly Fire Watches Established & Penetrations & Doors Returned to Operable Status ML20055C6291990-05-21021 May 1990 Special Rept 90-08:on 900419,fire Pump Batteries Inoperable When Surveillance Procedure SP.206 Not Performed by Due Date.Caused by Test Frequency Incorrectly Changed from Weekly to Monthly.Surveillance Schedule Revised ML20247N7491989-05-30030 May 1989 Special Rept 89-13:on 890328-29,specific Activity of Primary Sys Exceeded Limits in Administrative Procedure & Chemistry Control Commitment.Possibly Caused by Power Reduction.Isotopic Analysis Continued ML20246D4691989-05-0101 May 1989 Special Rept 89-12:on 890330,Tech Specs Violated.Caused by Fire Penetrations 34-69AA & 36-64AA Not Restored to Operable Status within 7 Days.Fire Watch Posted & Penetrations Restored to Operable Status on 890405 ML20246D6411989-04-27027 April 1989 Special Rept 89-11:on 890328,fire Barrier Door Ns 352 Not Restored to Operable Status within 7 Days.Hourly Fire Watch Established & Fire Door Restored to Operable Status on 890405.Fire Barrier Work Requests Under Review ML20245D9191989-04-20020 April 1989 Special Rept 89-10:on 890131,water Deluge Sys for Fire Zone 110 Auxiliary Feedwater Pump Area Not Returned to Operable Status within 14 Days,Per Tech Specs.Work Request 145494 Initiated to Rework Valve.Fire Watch Posted ML20245D0391989-04-10010 April 1989 Special Rept 89-08:on 890311,security Personnel Identified Closure for Fire Barrier Door AU 109 Not Restored to Operable Status within 7 Days.Hourly Firewatch Posted in Area & Tech Spec 3.14.6 Satisfied ML20248G3531989-04-0303 April 1989 Special Rept 89-07:on 890304,fire Barrier Door Not Restored to Operable Status within 7 Days as Required by Tech Specs. Caused by Commitment of Personnel to Outage Activities & Rev of Procedure M.100.Hourly Firewatch Posted in Area ML20247G1151989-03-28028 March 1989 Special Rept 89-06:on 890226,fire Barriers Not Restored to Operable Status within 7 Days.Caused by Pulling Temporary Cables in Support of Special Test Procedure 1218.Hourly Firewatch Posted in Area ML20247B4261989-03-20020 March 1989 Special Rept 89-04:on 890216,fire Barriers Breached More than 7 Days,Per Tech Spec 3.14.6.2.Hourly Firewatch Previously Posted & Fire Barrier Penetrations Restored to Operable Status on 890218 ML20247B7571989-03-20020 March 1989 Special Rept 89-05:on 890221,Tech Spec Limit Exceeded.Caused by Fire Barrier Door AU 319 Not Being Restored to Operable Status within 7 Days Due to Door Sticking & Not Closing Properly.Fire Watch Established & Door Operability Restored ML20235R9091989-02-27027 February 1989 Special Rept 89-003:on 890201-02,RCS Sample Data Indicated Specific Activity Exceeded 0.8 Uci/Ml I-131 Limit.Caused by Normal Increase in Iodine Activity After Power Reduction. Isotopic Analysis Continued Until Restoration Complete ML20235T7881989-02-23023 February 1989 Special Rept 89-02 on 890125:fire Barrier Mechanical Penetration 2233 Not Restored to Operable Status within 7 Days Per Tech Specs & Rubber Boot Seal Removed from Penetration.Hourly Firewatch Posted & Penetration Restored ML20206L8231988-11-23023 November 1988 Special Rept 88-18:on 881025 & 26,failure to Maintain Specific Activity of Primary Sys within Administrative Limits Occurred.Alternate Letdown Sys Purification Demineralizer Placed in Svc ML20206F5421988-11-14014 November 1988 Special Rept 88-17:on 881026,technicians Discovered That Fire Barrier Doors Were Not Restored to Operable Status within 7 Days as Required by Tech Spec 3.14.6.2.Fire Barrier Doors Were Returned to Operable Status ML20207N6211988-10-12012 October 1988 Special Rept 88-15:on 880915,fire Barrier Doors AU 216 & AU 217 Not Restored to Operable Status within 7 Days.Caused by Doors Being Kept Open to Provide Ventilation in Support of Work on Auxiliary Bldg HVAC Sys.Doors Restored ML20207N6041988-10-12012 October 1988 Special Rept 88-16:on 880918,PASS Inoperable More than 72 H. Caused by Clearance Tags Placed on Addl Valves to Disable Flow Path for Backup Dilution/Flush Water from Chilled Water Tank.Sys Returned to Operable Svc ML20207M1241988-10-11011 October 1988 Special Rept 88-14:on 880915,fire Barrier Penetrations Between Fire Areas 75/1 & 77/2 Not Returned to Operable Status within 7 Days.Caused by Insufficient Data in Design Drawings.Fire Watch Posted.Penetrations Restored by 881021 ML20155G2871988-09-27027 September 1988 Special Rept 88-13:on 880908,fire Barrier Penetration Seals for Floor Slots H8FS86 & H8FS87 Not Returned to Operable Status within 7 Days,Per Tech Spec 3.14.6.2.Hourly Firewatch Posted & Penetration Seals Will Be Restored by 881021 ML20154C9711988-09-0606 September 1988 Suppl to Special Rept 88-03 Re Removal of CO2 Fire Suppression Sys from Zones 75-80 Bringing Nuclear Svc Electric Bldg Into Compliance w/10CFR50,App R Requirements ML20154C0481988-08-30030 August 1988 Special Rept 88-12:on 880801,fire Barrier Penetration Seals for Penetrations 2041 & 2044 Breached for More than 7 Days During Power Escalation on 880729.Hourly Fire Watch Provided in Auxiliary Bldg within 1 H of Discovery ML20153F9651988-08-23023 August 1988 Suppl to Special Rept 88-07:fire Sys Changed from Deluge Sys to Spray Type Sys.Auxiliary Feedwater Pump Motors Will Only Be Sprayed During Actual Fire Situation.Shrouding on Motor Vents Modified for Addl Protection Against Water Spray ML20151U5011988-04-18018 April 1988 Special Rept 88-09:during Dec 1987 & Jan 1988,annual Surveillance of Reactor Bldg Surfaces Made ML20151T7181988-04-14014 April 1988 Special Rept 88-08:provides Updated List of Fire Barriers Breached More than 7 Days.Four Breaches Added to Support Ongoing Mod Activites & 23 Breaches Have Been Repaired.Util Will Return to Original Reporting Format ML20151K5401988-04-11011 April 1988 Special Rept 88-07:on 880315,water Deluge Sys for Fire Zone 110 Declared Inoperable.Actuation of Deluge Sys Could Adversely Affect Operability of Both Auxiliary Feedwater Pumps.Compensatory Measures Taken & Fire Watch Established ML20151F9311988-03-25025 March 1988 Special Rept 88-03:on 880225,Tech Spec 3.14.4 Violated. Caused by Fire Suppression CO2 Sys Not Being Restored to Operable Status within 14 Days.Fire Watch posted.CO2 Sys Will Remain Inoperable Until Redesign of Fire Damper Logic ML20148H3151988-03-15015 March 1988 Corrected Special Rept 88-05:on 880206 & 08,both Electric & Diesel Driven Fire pumps,P-440 & P-996 Declared Inoperable Due to Controller Replacement.Errata Corrects Date of Rept Inadvertently Omitted from Original Submittal ML20150E1361988-03-15015 March 1988 Special Rept 88-06:provides Updated List of Fire Nonfunctional Fire Barriers Which Have Not Been Restored to Functional Status within 7 Days,Per Tech Spec 3.14.6.2 ML20196E3691988-02-19019 February 1988 Special Rept 88-05:on 880208,fire Suppression Water Sys Declared Inoperable Due to Inoperable Electric & Diesel Driven Fire Pumps.Sampling Procedure CHM-5105 Revised & Auxiliary Fuel Storage Tank Assembled ML20196E3171988-02-18018 February 1988 Retracted RO 80-26 Re B&W Abnormal Transient Operating Guidelines Program Analysis Concerning Steam Generator Tube Rupture.Concerns Addressed in RO 80-26 Never Valid Since Procedure E.06 Ensures That Offsite Dose Limits Met ML20149K9441988-02-16016 February 1988 Special Rept 88-04,providing Updated List of Nonfunctional Fire Barriers Not Restored within 7 days.Forty-five Reportable Breaches Repaired.Fifteen Breaches Added During Period to Support Ongoing Mod Activities ML20149H9631988-02-0909 February 1988 Special Rept:On 880208,motor & Diesel Driven Fire Pumps Declared Inoperable Due to Failure of Fuel Storage Tank Sample Taken Per Surveillance Requirement 4.18.2.1.h.2. Diesel Pump Functional & Remains Lined Up to Supply Water ML20149D7751988-01-20020 January 1988 Special Rept 88-02:on 880106 & 17,diesel & Electric Driven Fire Pumps Declared Inoperable.Caused by Test Data Indicating Pumps Not Meeting Tech Spec Requirements & Pump Failure of Surveillance Test.Test Procedures Rewritten ML20149D5171988-01-18018 January 1988 Ro:On 880117,motor Driven Fire Pump Declared Inoperable.Pump Repaired & Returned to Operable Status on 880118.Telcon Notification Made on 880118 Per Tech Spec 3.14.2.3.b.1 ML20148K6651988-01-13013 January 1988 Special Rept 88-01:nonfunctional Fire Barriers Not Restored to Functional Status within 7 Days.Since Special Rept 87-26, 29 Reportable Breaches Repaired & 46 Breaches Added to Support Mod Activities ML20234D4651987-12-15015 December 1987 Special Rept 87-26:updated List of Nonfunctional Fire Barriers Breached More than 7 Days Provided.Listed Penetrations Erroneously Reported as Breached & Deleted from Rept ML20237A0971987-11-23023 November 1987 Special Rept 87-25:on 871104,fire Detection Zones 13 & 16 Not Restored to Operable Status within 14 Days as Specified in Tech Spec Section 3.14.1.Firewatches Established.Zones 13 & 16 Fire Detection Sys Will Be Returned to Svc by 871215 ML20236V6371987-11-16016 November 1987 Special Rept 87-24:on 870518,fire Barrier Door AU-218 Breached for More than 7 Days.List of Status of Reportable Breaches in Fire Barriers Encl.Addl 26 Breaches Added Since Special Rept 87-20.Fire Watches Established ML20236M2331987-11-0303 November 1987 Special Rept 87-22:on 871013,listed CO2 Zones Not Restored to Operable Status within 14 Days as Specified in Tech Spec Section 3.14.4.Firewatches Established.Sys Will Be Restored to Operable Status Upon Completion of Maint by 871231 ML20236K2511987-11-0303 November 1987 Special Rept 87-23:on 870910,util Identified That CO2 Zones 53 & 54 Not Restored to Svc within 14 Days.Caused by Opening Doors to Allow Nitrogen Dissipation Due to Plant Maint. Firewatches Established ML20236K4771987-10-29029 October 1987 Special Rept 87-21:on 870929,deluge Sys for Zone 81 Not Returned to Operable Status within 14 Days.Caused by Delay in Required Matl Procurement.Fire Watch Established for Inoperable Sys Per Tech Spec 3.14.3.2 ML20236B4531987-10-15015 October 1987 Special Rept 87-20:forwards Updated List of Nonfunctional Fire Barriers Not Restored to Svc within 7 Days.Since Last rept,72 Breaches Repaired.Twenty Breaches Still Open.Addl 87 Breaches Added to Support Ongoing Mod Activities ML20236A2201987-10-0505 October 1987 Special Rept 87-19:on 870920,Zone 110 Fire Protection Components Not Restored to Operable Status within 14 Days Per Tech Specs.Caused by Disabling of Sys to Prevent Actuation During Mod Work.Firewatch Posted.Sys Restored ML20235S2301987-09-22022 September 1987 Special Rept 87-18:on 870907,Zone 80 Fire Suppression Carbon Dioxide Sys Not Restored to Operable Status within 14 Days. Fire Watch Posted within One Hour Per Tech Specs Section 3.14.4.2 ML20235B0681987-09-15015 September 1987 Special Rept 87-17:on 870824,diesel Drive Fire Pump P-996 Inoperable for Over 7 Days,Per Tech Spec 3.14.2.2.Pump P-996 Restored to Operable Status on 870904 Following Bearing Replacement & Satisfactory Surveillance Testing ML20235J6241987-09-15015 September 1987 Special Rept 87-16,providing Updated List of Nonfunctional Barriers Not Restored to Functional Status within 7 Days. Revised Forecast Dates for Completion of Required Significant Engineering Work for Listed Penetrations Stated ML20238B6381987-08-21021 August 1987 Special Rept 87-15:on 870625,listed Carbon Dioxide Zones Inoperable.Caused by Sys Isolation at Sys Manual Isolation Valve.Fire Watch Established for Listed Inoperable Sys in Accordance W/Tech Spec 3.14.4.2 ML20237F8581987-08-18018 August 1987 Special Rept 87-14:providing Updated List of Nonfunctional Fire Doors Which Have Not Been Restored to Functional Status within 7 Days.Since Issuance of Special Rept 87-13,83 Breaches Repaired & 62 New Breaches Added to List ML20236M8481987-07-15015 July 1987 Special Rept 87-13 Re Nonfunctional Fire Barriers Which Have Not Been Restored to Functional Status within 7 Days.Util Evaluated Each Nonfunctional Fire Barrier Against Tech Spec Requirements & Verified That Proper Fire Watch Established 1990-07-16 Category:TEXT-SAFETY REPORT MONTHYEARML20211H7921999-08-13013 August 1999
[Table view]Safety Evaluation Supporting Amend 126 to License DPR-54 ML20195D1901999-05-0606 May 1999 Annual Rept ML20195H8571998-12-31031 December 1998 1998 Annual Rept for Smud. with ML20155D4801998-10-27027 October 1998 Amend 3 to Rancho Seco DSAR, Representing Updated Licensing Basis for Operation of Permanently Shutdown & Defueled Rancho Seco Nuclear Facility During Permanently Defueled Mode ML20248C4301998-05-0606 May 1998 Annual Rept, Covering Period 970507-980506 ML20249A7831997-12-31031 December 1997 1997 Smud Annual Rept ML20198G8271997-08-22022 August 1997 Safety Evaluation Supporting Amend 125 to License DPR-54 ML20217D3271997-07-30030 July 1997 Update of 1995 Decommissioning Evaluation for Rancho Seco Nuclear Generating Station ML20140A6371997-05-0606 May 1997 Annual Rept, Covering Period 960507-970506 ML20140G4481997-05-0101 May 1997 Part 21 Rept Re Potential Defect in Component of Dsrv & Dsr Enterprise Standby Diesel Generator Sys.Recommends That Springs Be Inspected on Periodic Basis,Such as During Refueling Outages ML20137W8151997-03-20020 March 1997 Amend 1 to Post Shutdown Decommissioning Activities Rept ML20141J2711996-12-31031 December 1996 Smud 1996 Annual Rept ML20138L1231996-11-13013 November 1996 Smud Rancho Seco Incremental Decommissioning Action Plan, Rev 0,961113 ML20129E7151996-10-14014 October 1996 Defueled SAR for Rancho Seco ML20059H6821994-01-17017 January 1994 Revised Rancho Seco Quality Manual ML20058K3841993-12-0909 December 1993 Part 21 Rept Re Potential Defect in Component of Dsrv & Dsr Enterprise Standby DG Sys,Regarding Potential Problem W/ Subcover Assembled Atop Power Head ML20056E5171993-08-31031 August 1993 Technical Review Rept, Tardy Licensee Actions ML20059K1981993-05-0606 May 1993 Annual Rept, Covering Period from 920501- 930506,consisting of Shutdown Statistics,Narrative Summary of Shutdown Experience & Tabulations of Facility Changes, Tests & Experiments,Per 10CFR50.59(b) ML20128C9641993-02-0202 February 1993 Informs Commission of Status of Open Issues & Progress of Specified Facilities Toward Decommissioning 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 ML20126B0421992-12-17017 December 1992 Final Part 21 Rept Re Potential Problem W/Steel Cylinder Heads.Initially Reported on 921125.Caused by Inadequate Cast Wall Thickness at 3/4-inch-10 Bolt Hole.Stud at Location Indicated on Encl Sketch Should Be Removed ML20125C7161992-12-0707 December 1992 Part 21 Rept Re Possibility for Malfunction of Declutching Mechanisms in SMB/SB-000 & SMB/SB/SBD-00 Actuators. Malfunction Only Occurs During Seismic Event.Balanced Levers May Be Purchased from Vendor.List of Affected Utils Encl ML20127P5861992-11-23023 November 1992 Followup to 921005 Part 21 Rept Re Potential Defect in SB/SBD-1 Housing Cover Screws.Procedure Re Replacement of SBD-1 Spring Cover Bolts Encl.All Fasteners Should Be Loosened & Removed.List of Affected Utils Encl ML20126E6771992-08-0303 August 1992 Rev 7 to Rancho Seco Quality Manual NL-90-451, Monthly Operating Rept for Oct 1990 for Rancho Seco Nuclear Generating Station1990-10-31031 October 1990 Monthly Operating Rept for Oct 1990 for Rancho Seco Nuclear Generating Station ML17348B5061990-10-0909 October 1990 Part 21 Rept Re Zener Diode VR2 on Power Supply Board 9 1682 00 106 Possibly Being Installed Backwards ML20059G9621990-09-10010 September 1990 Safety Evaluation Supporting Amend 115 to License DPR-54 NL-90-443, Monthly Operating Rept for Aug 1990 for Rancho Seco1990-08-31031 August 1990 Monthly Operating Rept for Aug 1990 for Rancho Seco ML20217A5711990-08-28028 August 1990 Final Engineering Rept,Assessment of Spent Fuel Pool Liner Leakage NL-90-439, Monthly Operating Rept for Jul 1990 for Rancho Seco Nuclear Generating Station1990-07-31031 July 1990 Monthly Operating Rept for Jul 1990 for Rancho Seco Nuclear Generating Station ML20055F8591990-07-16016 July 1990 Special Rept 90-11:on 900613,06,25,18,21 & 28,fire Barriers Breached More than 7 Days & Not Made Operable in 14 Days. Corrective Actions:Operability of Fire Detectors Verified on One Side of Breached Barriers NL-90-423, Monthly Operating Rept for June 1990 for Rancho Seco Nuclear Generating Station1990-06-30030 June 1990 Monthly Operating Rept for June 1990 for Rancho Seco Nuclear Generating Station ML20055C6291990-05-21021 May 1990 Special Rept 90-08:on 900419,fire Pump Batteries Inoperable When Surveillance Procedure SP.206 Not Performed by Due Date.Caused by Test Frequency Incorrectly Changed from Weekly to Monthly.Surveillance Schedule Revised ML20055C6301990-05-21021 May 1990 Special Rept 90-09:on 900424,25,30,31 & 0502,fire Barriers Inoperable for More than 7 Days,Per Tech Spec 3.14.6.2 Requirement.Hourly Fire Watches Established & Penetrations & Doors Returned to Operable Status ML20058B6521990-05-0404 May 1990 Rev 0 to ERPT-M0216, Property Loss Study for Rancho Seco Nuclear Generating Station in Long Term Defueled Mode ML20248E0121989-09-13013 September 1989 Supplemental Part 21 Rept Re Potential Problem W/Six Specific Engine Control Devices in Air Start,Lube Oil, Jacket Water & Crankcase Sys.Initially Reported on 890429. California Controls Co Will Redesign Valve Seating NL-89-634, Monthly Operating Rept for Aug 1989 for Rancho Seco Nuclear Generating Station1989-08-31031 August 1989 Monthly Operating Rept for Aug 1989 for Rancho Seco Nuclear Generating Station NL-89-598, Monthly Operating Rept for Jul 1989 for Rancho Seco Nuclear Generating Station1989-07-31031 July 1989 Monthly Operating Rept for Jul 1989 for Rancho Seco Nuclear Generating Station ML20247B3611989-07-17017 July 1989 Safety Evaluation Supporting Amend 112 to License DPR-54 NL-89-556, Monthly Operating Rept for June 1989 for Rancho Seco Nuclear Station1989-06-30030 June 1989 Monthly Operating Rept for June 1989 for Rancho Seco Nuclear Station ML20245E1161989-06-20020 June 1989 Safety Evaluation Supporting Amend 111 to License DPR-54 ML20245B6651989-06-15015 June 1989 Part 21 Rept 150 Re Potential Defect in Component of Dsr Standby Diesel Generator.Cause of Failure Determined to Be Combination of Insufficient Lubrication to Bushings.Listed Course of Action Recommended at Next Scheduled Engine Maint ML20245A1991989-06-0909 June 1989 Safety Evaluation Supporting Amend 110 to License DPR-54 ML20248B9361989-06-0505 June 1989 Safety Evaluation Supporting Amend 107 to License DPR-54 ML20248B6321989-06-0505 June 1989 Safety Evaluation Supporting Amend 108 to License DPR-54 ML20248B9621989-06-0505 June 1989 Safety Evaluation Supporting Amend 109 to License DPR-54 NL-89-517, Monthly Operating Rept for May 1989 for Rancho Seco Nuclear Generating Station1989-05-31031 May 1989 Monthly Operating Rept for May 1989 for Rancho Seco Nuclear Generating Station ML20247P1761989-05-30030 May 1989 Safety Evaluation Accepting Generic Ltr 83-28,Item 4.5.2 Re on-line Testing of Reactor Trip Sys ML20247N7491989-05-30030 May 1989 Special Rept 89-13:on 890328-29,specific Activity of Primary Sys Exceeded Limits in Administrative Procedure & Chemistry Control Commitment.Possibly Caused by Power Reduction.Isotopic Analysis Continued ML20247K7261989-05-23023 May 1989 Safety Evaluation Supporting Amend 105 to License DPR-54 1999-08-13 |
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