ML20084D941
ML20084D941 | |
Person / Time | |
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Site: | Ginna ![]() |
Issue date: | 07/15/1977 |
From: | Snow B ROCHESTER GAS & ELECTRIC CORP. |
To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
Shared Package | |
ML20084D931 | List: |
References | |
NUDOCS 8304120727 | |
Download: ML20084D941 (1) | |
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Category:REPORTABLE OCCURRENCE REPORT (SEE ALSO AO LER)
MONTHYEARML17265A7131999-07-22022 July 1999
[Table view]Special Rept:On 990407,radiation Monitor RM-14A Was Declared Inoperable.Caused by Failed Communication Link from TSC to Plant Process Computer Sys.Communication Link Was re-established & RM-14A Was Declaed Operable on 990521 ML17265A6251999-04-15015 April 1999 Special Rept:On 990309,halon Systems Were Removed from Svc & Fire Door F502 Was Blocked Open.Caused by Mods Being Made to CR Emergency Air Treatment Sys.Continuous Fire Watch Was Established with Backup Fire Suppression Equipment ML17264A9091997-06-0303 June 1997 Special Rept:On 970503,declared Fire Barrier Component (Fire Door) Inoperable.Caused by Maint Activities That Unintentionally Blocked Open Fire Door F-30.Stopped Activities Approx 1 Hr Later & Closed Fire Door F-30 ML17264A8941997-05-0707 May 1997 Special Rept:On 970407,inoperable Fire Suppression Sprinkler Sys Hourly Tour Was Suspended Prematurely.Caused by Personnel Error.Action Rept Initiated & Fire Watch Personnel Were Advised That Operations Approval Is Required ML17264A8411997-03-24024 March 1997 Special Rept:On 970225,declared Sping Air Ejector Radiation Monitor R-15A Inoperable Due to Calibr Activities.Replaced Detector & Cable for Channel 9,tested Satisfactorily & Returned R-15A to Service ML17264A8281997-03-0303 March 1997 Special Rept:On 970202,Plant Process Computer Sys Received Alarms on All Points for Plant Vent Radiation Monitor R-14A. Skid Was Flushed & Desired Flow Rate Was Reestablished.Skid Was Taken OOS on 970210.Conducted Monitoring of R-14A ML17264A7481996-11-27027 November 1996 Special Rept:On 961015,identified Problem W/Automatic Release Actuation of Sys Deluge Valve & Sys Declared Inoperable.Compensatory Actions Will Remain in Effect Until All Four Suppression Sys Restored to Operable Status ML17264A3761996-02-21021 February 1996 Special Rept:On 960115,diesel Fire Pump & Controller Held & Declared Inoperable for Greater than Seven Days to Install Cummins NT855-F6 Fire Rated Diesel Driver & Ul Listed Firetrol FTA-1100 Micro Controller.Mod Completed on 960124 ML17264A2841995-12-0404 December 1995 Special Rept:On 951027,staff Discovered That Portion of Overall Basis for Approval of Exemption Was Not Being Met Due to Removal of Shield Wall.Inserted Kaowool within 6 Inch Gap Now Being Used as Temporary Seal ML17263A6991994-06-14014 June 1994 Close-out of Class Reduction Conditions:On 940610,motor Was Started & Sparks Were Noticed & Plant Was in Hot Shutdown ML17263A4291993-10-14014 October 1993 Special Rept:On 930930,operators Conservatively Declared Containment Isolation Valves Inoperable.Containment Recirculation Fans Replaced During 1993 Outage & Motor Coolers for Containment Recirculation Fans Replaced ML17263A3101993-07-0202 July 1993 Ro:On 930629,malfunction in Rod Control Sys Caused Minor Misalignment Between Control Rods in Group 1 & 2 of Bank D. Cause Under Investigation.Control Rods Will Be Maintained in Manual Control & Bank D Rods Will Be Exercised Daily ML17262A9731992-08-24024 August 1992 Special Rept:On 920810,discovered That B Reactor Compartment Cooling Fan Cooling Coils Developed SW Leak. Work Order Package 9201643 Developed to Perform Tube Repair, Per Procedure EM-745, Repair of Containment Fan.. ML17262A9721992-08-24024 August 1992 Special Rept:On 920813,D Containment Recirc Fan Cooler Declared Inoperable Due to Svc Water Leak in D Containment Recirc Fan Cooling Coils.Work Order Package 9201647 Developed to Perform Repair,Per Procedure EM-745 ML17262A9291992-07-16016 July 1992 Special Rept:On 920702,containment (CNMT) Sump a Actuation Received Due to Svc Water Leak Inside Containment. Alternatives to Redesign & Replacement of CNMT Recirculation Fan Cooling Coils Will Be Considered During 1994 Outage ML17262A8681992-05-20020 May 1992 Special Rept:On 920413,motor-driven Fire Pump Declared Inoperable,Disabling auto-start Logic for More than 7 Days. Domestic Water Supply cross-tied to Fire Water Sys.Pump Declared Operable on 920513 & cross-tie Removed ML17262A6271991-10-24024 October 1991 Ro:On 911011,pin Hole Leak in 1/2-inch Copper Tubes Between 3-inch Carbon Steel Discharge Header & Cooling Coils on Fan Cooler B Discovered.Caused by Defect in Tubes.Work Request/ Trouble Rept Initiated.Reported Per NRC Bulletin 80-24 ML17262A6021991-09-17017 September 1991 Special Rept:On 910903,svc Water Leak Inside Containment Sump a Pump Identified.Abnormal Procedure AP-SW.1, Svc Water Leak, Entered.Work Order Package Prepared to Identify & Repair Svc Water Leak ML17262A4331991-04-0303 April 1991 Followup Rept of 910403 Event Re Removal of RHR Sys & Component Cooling Water Sys from Svc Due to Packing Leak from MOV-738B.Valve Manually Placed on Backseat & Leak Terminated ML17261B1471990-08-23023 August 1990 Special Rept:On 900717,fire Suppression Sys Inoperable for More than 7 Days W/Redundant Component.Replacement of Defective B Batteries Delayed Pending Receipt of Batteries for Both Banks.Limiting Condition Ended on 900724 ML17250B1821990-05-30030 May 1990 Special Rept:On 900430,RCS Pressure Transient Occurred Due to Excess Letdown Being Ineffective at Lower Pressures. Operating Procedures Revised to Alert Operators on Effective Methods of Pressure Control Under Conditions ML17261B0091990-03-16016 March 1990 Special Rept:On 900213,inoperable Fire Damper I-411-21-P Found.Caused by Improper Damper Installation.Replacement Damper in Procurement Process & Will Be Installed by Jul 1990 ML17250A9041989-07-31031 July 1989 Ro:On 890729,control Room Received Annunciator Alarm, Indicating Failure of Microprocessor Rod Position Indication Sys & Disabling CRT & Plant Process Computer Sys.Unusual Event Declared & Terminated on 890730 ML17251A5481989-06-20020 June 1989 Ro:On 890619,safety Injection Pump Recirculation Valves B & C Discovered Locked Full Open at Approx 99% Power.Power Reduction Commenced to Comply W/Tech Spec.Testing & Throttling of Safety Injection Pumps B & C Accomplished ML17309A4151988-12-22022 December 1988 Followup Summary of Closeout of Ro:On 881222,onsite Medical Emergency Declared Due to Large Filter Falling on Contractor Workman Lower Leg.Injured Worker Found Not to Be Contaminated & Unusual Event Terminated ML17251A3691988-11-23023 November 1988 Special Rept:On 881018,turbine Driven Auxiliary Feedwater Pump Inoperable Per Procedure A-52.4.Existing Check Valve Leakage Indicated by Higher than Ambient Temp in Turbine Driven Auxiliary Feedwater Discharge Piping ML17251A3451988-11-0505 November 1988 Ro:On 881104,automatic Flow Alarm Received in Control Room on S-05.Caused by Inadvertent Operation of Control Station by Personnel Working in Area.No Fire Existed ML17251A2791988-09-22022 September 1988 Closeout Ro:On 880918,security Reported Smelling Smoke in Security Diesel Generator Room.Smoke Observed in Electrical Panel & All Power to Panel Terminated.Fire Brigade Captain Declared Fire Out ML17251A2621988-09-0909 September 1988 Ro:On 880908,info on Bomb Threat to Util Received from Wayne County Sheriff Ofc.Original Threat Received by Monroe County & Rochester Police Dept.Unusual Event Declared Per SC-100 & Offsite Notifications Made Per SC-601 ML17251A1761988-07-18018 July 1988 Ro:On 880716,electrical Fault Caused Five Main Breakers in Substation to Trip Open,Resulting in Loss of Approx one-half of Transmission Capability of Substation.Caused by Exploding Circuit Breaker.Offsite Power Restored ML17251A1691988-07-0707 July 1988 Special Rept:On 880516,turbine Driven Auxiliary Feedwater Sys Inoperable During Period from 880516-25.Valve V-3504B Operated W/Notable Resistance.Procedure A-52.4 Revised to Incorporate Check Valve ML17251A9871988-03-15015 March 1988 Ro:On 880314,radiation Process Monitor R-15 Alarmed, Indicating Possible Steam Generator Tube Leak.Leak Confirmed by Analysis of Steam Generator Blowdown & Air Injector Sys Grab Samples.Reactor Shut Down ML17251A9341988-02-10010 February 1988 Ro:On 880209,health Physics Technician Got Slightly Contaminated About Face & Head.Caused by Technician Falling Approx 15 Ft Inside Containment Vessel Loop Reactor Coolant Pump B Seal Area.Technician Taken to Hosp & Decontaminated ML17251A3671987-10-0505 October 1987 Special Rept:On 870630 & 0713,potential Problems W/Fire Doors Due to Several Small Door Skin Spot Weld Fractures Identified.Caused by Inability of Hydraulic Door Closer to Control Door Operation.Doors Repaired ML17261A4671987-04-21021 April 1987 Ro:On 870420,truck Bomb Threat Received.Armed Security Personnel Posted at Site Entrances.Security Threat Did Not Materialize & Plant Resumed Normal Operations ML20207R7521987-03-0909 March 1987 Ro:On 870207,MSIV Failed to Close During Plant Shutdown. Caused by Binding of Valve Disc on Partially Removed Valve Stop.Disc Stop Matl Removed & Valve Tested.Sketch of Valve & Stop Encl ML20207C8141986-12-22022 December 1986 Ro:On 861023 & 1128,RCS High Pressure Transient Occurred. Caused by Lifted Pressurizer PORV Due to Internal Event.More Specific Info Re Events Can Be Found in LERs 86-008 & 86-011 ML20215D6231986-12-11011 December 1986 Followup Ro:On 861128,operator Inadvertently Closed Main Steam Line Isolation Valves 3516 & 3517 Instead of Containment Vessel Depressurization Valves,Causing Pressurizer High Pressure Reactor Trip ML20204F9221986-07-29029 July 1986 Ro:On 860729,manual Reactor Trip Initiated When Large Quantity of Steam Found Rising Over Turbine Bay Area.Caused by Leak from Moisture Separator Reheater Drain Line 2A to High Pressure Feedwater Heater 5B.Drain Lines Repaired ML20138Q8751985-11-0707 November 1985 Followup Summary:On 851106,alarm & Deluge of Fire Sys S-05 Received in Control Room.Caused by Spurious Signal Spike on Second Alarm Module.Investigation on Failure Mode of Fire Sys Continuing.Cable Tunnel Dried Out ML20128L9181985-07-12012 July 1985 Ro:On 850701,containment Vessel Sump Pump Actuation Interval Decreased Significantly from Normal.Caused by Svc Water Leak.Fan Cooler Inspected & Repaired ML20083P8141984-03-20020 March 1984 Ro:On 840307,during Drainage of RCS to Holdup Tanks,Rhr Containment Sump B Suction Valves MOV 851 a & B Opened Before Valve 850 a Closed,Causing Drainage of RCS Into Sump B ML20087P7331984-02-21021 February 1984 Ro:Providing Sequence Summary of Closeout or Class Reduction Condition for Unusual Event on 840219 Re out-of-svc Accumulators.Accumulators Returned to Svc & Declared Operable ML20087P9711984-01-27027 January 1984 Ro:On 831228,turbine Driven Auxiliary Feedwater Pump Steam Stop Valve Found in Tripped Position,Although Control Room Indication Indicated Valve Open.Caused by Contractor Stepping on Valve Trip Mechanism ML17255A4931983-10-0707 October 1983 Ro:On 831007,seismic Event Occurred in Upstate Area of Ny. Movement Not Noted by Control Room Operators.Unusual Event Declared & Earthquake Emergency Plan Initiated.Plant Tour Indicated No Damage ML20077N5901983-08-31031 August 1983 Ro:On 830303,diesel Fuel Oil for Fire Pump Found Below Viscosity Limit.Caused by Delays in Transporting Sample to Lab for Analysis.Procedures to Expedite Resampling & Analysis Being Reviewed ML20072N5891983-07-0808 July 1983 Ro:On 830609,during Safety Injection Functional Test,When Safety Injection Signal Initiated by Simulating High Containment Pressure,Charging Pump 1C Did Not Trip, Causing Operation of Reactor Overpressure Protection Sys ML20072U5941983-03-31031 March 1983 Ro:On 830331,health Physics Technician Fell 40 Ft to Floor of Reactor Cavity.Individual Removed from Area & Taken to Hosp to Be Treated for Serious Injuries & Decontaminated ML20028G2491983-01-26026 January 1983 RO 83-008/01:on 830125,emergency Diesel Generator Start Relay (R-1,R-2) Indicating Lights Found Off,Causing Loss of Permissive Start Relays.Caused by Personnel Error.Relays Reset.Memo Will Be Issued Describing Incident ML20083P1021983-01-21021 January 1983 RO 83-006/01:on 830120,alarm Received in Control Room Indicating Low Screenhouse Water Level of 20 Ft,Rendering Fire Suppression Water Sys Inoperable.Addl Info Will Be Presented in 14-day Written Rept 1999-07-22 Category:TEXT-SAFETY REPORT MONTHYEARML17265A7601999-10-0505 October 1999
[Table view]Part 21 Rept Re W2 Switch Supplied by W Drawn from Stock, Did Not Operate Properly After Being Installed on 990409. Switch Returned to W on 990514 for Evaluation & Root Cause Analysis ML17265A7621999-09-30030 September 1999 Monthly Operating Rept for Sept 1999 for Re Ginna Npp.With ML17265A7531999-09-23023 September 1999 Part 21 Rept Re Corrective Action & Closeout of 10CFR21 Rept of Noncompliance Re Unacceptable Part for 30-4 Connector. Unacceptable Parts Removed from Stock & Scrapped 05000244/LER-1999-011, :on 990823,small Tears Were Discovered in Flexible Duct Work Connector at Inlet of CR HVAC Sys Return Air Fan (AKF08).Caused by in-leakage Greater than That Assumed.Implemented Temporary Mod 99-029.With1999-09-22022 September 1999
ML17265A5941999-03-0808 March 1999 Safety Evaluation Accepting Request for Relief 34 from ASME Code Section XI Requirements for Plant Third 10-yr ISI Interval ML17265A5621999-03-0303 March 1999 Safety Evaluation Supporting Amend 73 to License DPR-18 ML17265A5661999-03-0101 March 1999 Rev 26 to QA Program for Station Operation ML17265A5581999-03-0101 March 1999 Rev 1 to Gnpp Internal Flooding Probabilistic Safety Assessment Final Rept ML17265A5961999-02-28028 February 1999 Monthly Operating Rept for Feb 1999 for Ginna Nuclear Power Plant.With ML17265A5541999-02-25025 February 1999 Safety Evaluation Approving Request to Apply leak-before- Break Status to Portions of Plant Residual Heat Removal Sys Piping ML17265A5341999-02-0404 February 1999 Safety Evaluation Granting Request Relief 36 from ASME Code Section XI Requirements for Plant Third 10-yr ISI Interval ML17265A5371999-01-31031 January 1999 Monthly Operating Rept for Jan 1999 for Re Ginna Nuclear Power Plant.With 1999-09-30 |
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i, 3 ROCHESTER Gdi AMD ELEC1MDC CORNRATlON e 89 EAST AVENUE, ROCNESTER,
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Jely 13. 1977 i
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P.r. Jerces F. O' Reilly, DirecDor S. Muc) ear P.cguistory Costdissipa
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11Miice of inspection sud Enfrircement r.rI; iou I 633 Park Avenus T,ing of Prussia, Pennsylvanta 154 06 I
I Reportable occurrence f 77-10
Subject:
Redundanc sesvice' Veter Dis-l charge Line Support Design Error I
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Dear r.r. O'Reilly:
144 1977 to '
to confirin my phone call to' yfr, Donald Havercamp on July supp?caental inforesstori regarding Reportable occurrence f 77-10 at
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r.ym t cinnin Station.
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<l po)1owing discovery of this Reportable occusvence, 01.1bert Aesociatee was di-As a rreted to review the redundarte house service discharge line coupletely.
resul e of this reviesa four maljlitional supports (su-69, 59-73, SW-78; SW-83) stre condit. ions,
could produce, doder design basis earthquaket
- 70. Wa.are epplicabic allemable values :ss was previously identified for SW-proceeding to rectify the condition.
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Bruce A. Sterne Assistan' Superintendent r./.S :ks a i
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Mr. G. J, Fwarthouc, i:Md Corp.
7:r. L. D. White, Jr., RGV, Corp.
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