05000000/LER-1986-009, Ro:On 860312,discovered That LER 2-86-04 & LER 86-009 Not Submitted to Nrc.Caused by Misplaced Repts.Repts Telecopied to Nrc.Procedure for Distribution of Repts Revised
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| ML20210M585 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom, Limerick, 05000000 |
| Issue date: | 04/14/1986 |
| From: | Leitch G PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | Murley T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| NUDOCS 8605020327 | |
| Download: ML20210M585 (2) | |
Category:REPORTABLE OCCURRENCE REPORT (SEE ALSO AO LER)
MONTHYEARML20199L5301999-01-19019 January 1999
[Table view]Special Rept:On 981214,seismic Monitor Was Declared Inoperable.Caused by Spectral Analyzer Not Running.Attempted to Reboot Sys & Then Sent Spectral Analyzer to Vendor for Analysis & Rework.Upgraded Sys Will Be Operable by 990331 ML20237F0291998-08-27027 August 1998 Special Suppl Rept:On 960425,one Loose Part Detection Sys (Lpds) Was Identified to Be Inoperable.Initially Reported on 960531.Caused by Loose Parts Detector Module.Repairs Performed & Intermittent Ground No Longer Present ML20198S6621997-11-10010 November 1997 Special Rept:On 971009,during D21 EDG Monthly Surveillance Test,Engine Speed Was Cycling Unusually,Load Oscillations Observed on Control Room Indicators & Flame Emanated from Exhaust Stack.Caused by EDG Internal Forces.Repaired EDG ML20211H7951997-09-29029 September 1997 Special Rept:On 970828,EDG Failure Occurred Due to Fuel Oil Leak on Fuel Oil Return Header Tube at Number Four Cylinder. Interim Repair Performed by Removing & Replacing Damaged Section of Tubing ML20198E7391997-08-0404 August 1997 Special Rept:On 970703,diesel Generator Failed Surveillance Test Procedure ST-6-092-311-2.Caused by Motor Operated Potentiometer (Mop) Set Below Its Normal 60 Hz Position. Stroked Mop Through Full Travel While Monitoring Resistance ML20136H2101997-03-14014 March 1997 Special Rept:On 961001,suppl for Inoperability of loose-part Detection Sys Channel for More than 30 Days.Channel/Detector Malfunction Isolated to Instrumentation Contained within Inerted Unit 2 Primary Containment ML20136H1291997-03-10010 March 1997 Special Rept:On 970103,LPDS Declared Inoperable.Caused by Defective Latch Board.Board Replaced & ST Procedure Was Completed Satisfactorily on 970114 ML20134D2391997-01-30030 January 1997 Special Rept:On 970101,failure of Diesel Generator Occurred. Caused by Loose Wire.Removed Banana Jacks from Terminals, Tightened Wires on Terminal Block & Returned Diesel Generator to Operable Status ML20128H3391996-10-0101 October 1996 Special Rept:On 960828,channel/detector Which Monitors Acoustic Level on 'B' Main Steam Line Annunciated in Mcr. Channel/Detector Malfunction Was Isolated to Instrumentation Contained within Inerted Unit 2 Primary Containment ML20115H7681996-07-17017 July 1996 Special Rept:On 960603,Unit 2 Vent Stack Wide Range Gas Radiation Monitor Sys Removed from Svc for Planned Mod.Sys Subsequently Returned to Svc on 960701.Mod Replaced ML20115H0111996-07-17017 July 1996 Special Rept:On 960703,main Stack Wide Range Gas Radiation Monitor Sys Removed from Svc for Planned Mod.Sys Expected to Be Returned to Svc by 960830 After Mod Work Completed ML20112F7921996-06-0606 June 1996 Special Rept:On 960507,D22 EDG Declared Inoperable.Caused by D22 EDG Crankcase Overpressurization Exhaust Backpressure. D22 EDG Exhaust Stack Scraped & Ion Oxide Scale Sheets Removed from Sidewalls ML20117J9751996-05-31031 May 1996 Special Rept:On 960425,inoperability of loose-parts Detection Sys Channel for More than 30 Day Identified. Work Order Initiated to Inspect Instrumentation ML20111B4751996-05-10010 May 1996 Special Rept:On 960422,vent Stack Wide Range Gas Radiation Monitor Sys Was Removed from Svc for Planned Mod.Field Survey Teams Would Be Dispatched to Monitor Radioactive Effluents as Defined in Plant Emergency Plan ML20107L2501996-04-23023 April 1996 Special Rept:On 960312,two loose-part Detection Sys Channels Inoperable for More than 30 Days.Caused by Failure of Sensor.Repaired Control Rod Housing 02-31 Lpds Channel Sensor ML20101G7811996-03-25025 March 1996 Special Rept:On 960224,D21 EDG Declared Inoperable,Due to Inability to Control EDG Load.Loose Connection at Output of Motor Potentiometer Tightened ML20099L7651995-12-28028 December 1995 Special Rept:On 951130,EDG D21 Experienced Pressurization of Crankcase During Performance of Surveillance Tests.Analysis of Failure Continuing.Corrective Actions to Prevent Recurrence Will Be Developed & Implemented as Necessary ML20094M0141995-11-15015 November 1995 Special Rept:On 951017,valid Failure of EDG Occurred While Performing Surveillance Test Procedure ST-6-092-316-1.Caused by Overvoltage Permissive Relay in Output Breaker Closing Logic Not Picking Up.Relay Recalibr & Returned to Svc ML20092M1751995-09-22022 September 1995 Special Rept:On 950726,valid Failure of E-3 EDG Occurred Due to Dead Spot on Potentiometer Which Affected E-3 EDG Controller Output signal.E-3 EDG Returned to Operable Status Following Motor Operated Potentiometer Replacement ML20087H2511995-08-14014 August 1995 Special Rept:On 950726,non-valid Failure of E-3 EDG Occurred Due to Dead Spot on E-3 EDG Motor Operated Potentiometer (MOP).E-1 & E-3 EDG Mops Will Be Replaced W/New Type Mop During Future Mod Outages ML20086R5171995-07-25025 July 1995 Special Rept:On 950630,determined That Number 12 Cylinder on E-1 D/G Had Lower than Normal Operating Temps During Surveillance Test.Caused by Failure of Fuel Oil Injector Pump.Injector Pump Replaced & Satisfactorily Tested ML20086G5921995-07-0707 July 1995 Special Rept:On 950507 & 10,loose Part Detection Sys (Lpds) Channel Sensor Found to Be Not Mounted on Piping.Cause Not Yet Determined.Sensor Reattached to Pipe & Channel Returned to Operable Status ML20077E2511994-12-0505 December 1994 Special Rept:On 941124,accelerograph Sensor Inoperable for More than 30 Days.Seismic Recorder XR-VA-105 & Accelerograph Sensor XE-VA-105 Declared Inoperable on 941025.Loose Power Cable to Seismic Record XR-VA-105 Tightened ML20078C1701994-10-24024 October 1994 Special Rept:On 940924,valid Failure of E-2 EDG Occurred. Caused by Problem w/4 Kv Breaker.Breaker Incorporated Into Preventive Maint Program to Replace Grease ML20073F7451994-09-23023 September 1994 Special Rept:On 940810,describing Sequence of Events & Decisions Surrounding Potential Noncompliance W/Safe Shutdown Commitments ML20071Q5771994-08-0202 August 1994 Special Rept:On 940706,valid Failure of E-4 Emergency Diesel Generator Occurred.Caused by Solenoid Valve Spuriously Sticking.Valves Replaced ML20069D6961994-05-31031 May 1994 Special Rept:On 940422,noted Inoperability of loose-part Detection System for More than 30 Days.Caused by Tape Recorder Not Advancing in Play Mode.Tape Recorder Was Repaired,Tested & Declared Operable ML20064C3011994-02-28028 February 1994 Special Rept:On 940211,non Valid Failure of EDG E-4 Occurred When Voltage Shutdown Button Inadvertently Bumped.Maint Insp Initiated to Determine If Generator Damage May Have Occurred Due to Event.Remaining EDGs Were Operable ML20062L6071993-12-23023 December 1993 Special Rept:On 930526,discovered That Triaxial Response Spectrum Analyzer (Trsa) Could Not Be Properly Calibr & Was Inoperable.Trsa Returned to Vendor on 930626 But Could Not Be Repaired Due to Lack of Spare Parts ML20059A8271993-10-22022 October 1993 Special Rept:On 931012,valid Failure of EDG E-2 Occurred During Routine Monthly Test.Edg E-2 Declared Inoperable Due to High Fuel Oil Differential Pressure Condition.Edg E-2 Fuel Oil Filters Replaced ML20056G8701993-08-27027 August 1993 Special Rept:On 930803,discovered That Cylinder on 2-EDG Lower than Normal Operating Temps.Caused by Fuel Pin on Cylinder Injector Pump Not Fully Engaged ML20128B9561993-01-28028 January 1993 Special Rept:On 930102,ST Procedure in Progress D21 EDG Kilowatt Output Was Erratic & Unstable.Caused by Loose Wire on D21 EDG Electronic Governor.Unit 1 EDGs Were Inspected & Verified Not to Have Same Conditions ML20126E8751992-12-18018 December 1992 Special Rept:On 921125,EDG D21 Output Began Erratically Increasing & Decreasing When Control Logic Converted to Isochronous Mode.Caused by Test Start Circuit Deenergizing. Damaged Wire Repaired & Shortened & Governors Inspected ML20115D8981992-10-16016 October 1992 Special Rept:On 920909,discovered That Channel 1 (Longitudinal Axis of Three Orthogonal Axes) of Accelerograph Sensor Failed Test Criteria.Cause Not Yet Determined.Maint Work Request Initiated on 920922 ML20114B9551992-08-25025 August 1992 Special Rept:On 920730,intermittent Operation of Speed Control Response Occurred While Attempting to Synchronize EDG D24 to 4 Kv Safeguard Bus.Caused by Loose Fuse Clip Contacts in 125-volt Dc Circuit.Contacts Tightened ML20079L6291991-10-30030 October 1991 Special Rept:On 910916 & 23,cable Spreading & Computer Room CO2 Fire Protection Sys Out for Svc for More than 14 Days. Caused by Need to Provide for Worker Safety During Mod Work. Fire Detectors Verified Operable & Firewatch Stationed ML20083B9371991-09-18018 September 1991 Special Rept:On 910823,D23 Emergency Diesel Generator Declared Inoperable While Plant Personnel Performed Troubleshooting Activities to Resolve Discrepancy Between D23 EDG Local & Remote Kw Meters ML20077P9701991-08-15015 August 1991 Special Rept:On 910714,diesel Driven Fire Pump Out of Svc for More than Seven Days Due to Annual Preventative Maint Activities.Preventative Maint Completed & Pump Returned to Svc.Operability Testing Completed Satisfactorily on 910723 ML20064A4651990-08-27027 August 1990 Special Rept:On 900802,diesel-driven Fire Pump Declared Inoperable During Testing Due to Engine Overheating.Caused by Silt & Marine Biotic Life Plugging Y Strainer in Cooling Line.Strainer Cleaned & Retested ML20059B8991990-08-21021 August 1990 Special Rept:On 900802,diesel Driven Fire Pump Declared Inoperable During Testing Due to Engine Overheating.Diesel Generator E-2 Returned to Operable Status & motor-driven Fire Pump Declared Operable on 900807 ML20058N6651990-08-0808 August 1990 Special Rept:On 900802 & 07,diesel Driven & Motor Driven Fire Pumps,Respectively,Declared Administratively Out of Svc.Caused by Engine Overheating & Diesel Generator (DG) E-2 Out of Svc.Local Fire Depts Notified & DG E-2 Repaired ML20245H4461989-08-10010 August 1989 Ro:On 890710,diesel Driven Fire Pump Out of Svc for More than 7 Days.Caused by Disconnected Coolant Hose from Engine Block During Test,Draining Coolant from Engine & Heat Exchanger.Insp & Repair of Engine Performed ML20245J5571989-05-0101 May 1989 Ro:On 890331,motor Driven Fire Pump Out of Svc in Excess of 7 Days.Caused by Removal of Pump from Svc on 890324 to Allow Implementation of Electrical Mods.Diesel Driven Fire Pump Verified Operable & Tested Every 72 H ML20245B3391989-04-14014 April 1989 Special Rept:On 890303,seismic Monitoring Instruments Inoperable for More than 30 Days.Caused by Triaxial Accelerometer Cables Picking Up Electrical Noise Which Caused Spurious Alarms.Noise Filters Will Be Installed ML20195E5011988-11-0303 November 1988 Special Rept:On 881020,diesel Driven Fire Pump Failed to Start Automatically During Surveillance Test.Caused by Inadequate Test.Diesel Driven Fire Pump & auto-start Feature Tested & Rev of Fire Pumps Surveillance Tests in Process ML20205H2561988-10-21021 October 1988 Ro:On 881020,diesel Driven Fire Pump Failed to Start Automatically During Performance of Surveillance Test.Cause Under Investigation.Diesel Driven Fire Pump Subsequently Tested Successfully & Returned to Svc ML20154A7261988-09-0202 September 1988 Special Rept:On 880726,motor-driven Fire Pump Out of Svc for More than 7 Days.Caused by Action Taken to Allow Cleaning & Insp of of E-42 4 Kv bus.Motor-driven Fire Pump Restored to Operable Status on 880821 ML20153G3131988-09-0101 September 1988 Special Rept:On 880817,primary & Secondary Meteorological Towers Declared Inoperable.Caused by Towers Being Struck by Lightning During Thunderstorm.Tower Sensors Returned to Svc on 880823 & Air Temp Difference Sensors Being Replaced ML20154A9611988-09-0101 September 1988 Special Rept:On 880822,discharge Pressure Lost While Motor Driven Fire Pump in Operation.Caused by Crack That Formed in Column Pipe Flange Area Where It Bolts to Pump.Motor Driven Pump Removed from Pump Structure,Disassembled & Inspected ML20151P1071988-07-12012 July 1988 Special Rept:On 880602,six Triaxial Time History Accelerographs Declared Inoperable Due to Inadequate Calibr Surveillance Tests.Tests Revised to Incorporate tilt-table Testing of Accelerographs 1999-01-19 Category:TEXT-SAFETY REPORT MONTHYEARML20217K9931999-10-14014 October 1999
[Table view]Safety Evaluation Supporting Amend 234 to License DPR-56 ML20217B4331999-10-0505 October 1999 Safety Evaluation Supporting Amend 233 to License DPR-56 ML20217D1211999-09-30030 September 1999 Monthly Operating Repts for Sept 1999 for Lgs,Units 1 & 2. with ML20217G3541999-09-30030 September 1999 Monthly Operating Repts for Sept 1999 for Pbaps,Units 2 & 3. with ML20216H7091999-09-24024 September 1999 Safety Evaluation Supporting Amends 229 & 232 to Licenses DPR-44 & DPR-56,respectively ML20217A1691999-09-22022 September 1999 Part 21 Rept Re Engine Sys,Inc Controllers,Manufactured Between Dec 1997 & May 1999,that May Have Questionable Soldering Workmanship.Caused by Inadequate Personnel Training.Sent Rept to All Nuclear Customers ML20212D1281999-09-17017 September 1999 Safety Evaluation Supporting Proposed Alternatives CRR-03, 05,08,09,10 & 11 ML20212A8861999-09-13013 September 1999 Safety Evaluation Authorizing First & Second 10 Yr Interval Inservice Insp Plan Requestss for Relief RR-01 ML20212A4481999-08-31031 August 1999 Monthly Operating Repts for Aug 1999 for Limerick Generating Station,Units 1 & 2.With ML20212A5871999-08-31031 August 1999 Monthly Operating Repts for Aug 1999 for Peach Bottom,Units 2 & 3.With ML20211D5501999-08-23023 August 1999 Safety Evaluation Supporting Amends 228 & 231 to Licenses DPR-44 & DPR-56,respectively ML20211E9891999-08-20020 August 1999 LGS Unit 2 Summary Rept for 970228 to 990525 Periodic ISI Rept Number 5 ML20212H6311999-08-19019 August 1999 Rev 2 to PECO-COLR-P2C13, COLR for Pbaps,Unit 2,Reload 12 Cycle 13 ML20210L7051999-07-31031 July 1999 Monthly Operating Repts for July 1999 for Limerick Generating Station,Units 1 & 2.With ML20210N7641999-07-31031 July 1999 Monthly Operating Repts for Jul 1999 for PBAPS Units 2 & 3. with ML20209G0211999-06-30030 June 1999 GE-NE-B13-02010-33NP, Evaluation of Limerick Unit 2 Shroud Cracking for at Least One Fuel Cycle of Operation ML20209H1121999-06-30030 June 1999 Monthly Operating Repts for June 1999 for Pbaps,Units 2 & 3. with ML20209D7741999-06-30030 June 1999 Monthly Operating Repts for June 1999 for Limerick Generating Station,Units 1 & 2 ML20195G4651999-05-31031 May 1999 Monthly Operating Rept for May 1999 for Lgs,Units 1 & 2 ML20195H8841999-05-31031 May 1999 Monthly Operating Repts for May 1999 for Pbaps,Units 2 & 3. with ML20207H8331999-05-31031 May 1999 Non-proprietary Rev 0 to 1H61R, LGS - Unit 2 Core Shroud Ultrasonic Exam ML20209D7791999-05-31031 May 1999 Revised Monthly Operating Repts for May 1999 for Limerick Generating Station,Units 1 & 2 ML20195B3021999-05-0606 May 1999 Rev 0 to PECO-COLR-L2R5, COLR for Lgs,Unit 2 Reload 5 Cycle 6 ML20195G4761999-04-30030 April 1999 Revised Monthly Operating Repts for Apr 1999 for Lgs,Units 1 & 2 ML20206N2901999-04-30030 April 1999 Monthly Operating Repts for Apr 1999 for Limerick Generating Station,Units 1 & 2.With ML20206N1661999-04-30030 April 1999 Monthly Operating Repts for Apr 1999 for Pbaps,Units 2 & 3. with ML20206D8971999-04-22022 April 1999 Rev 2 to PECO-COLR-L1R7, COLR for Lgs,Unit 2 Reload 7, Cycle 8 ML20206A2921999-04-20020 April 1999 Safety Evaluation Concluding That Proposed Changes to EALs for PBAPS Are Consistent with Guidance in NUMARC/NESP-007 & Identified Deviations Meet Requirements of 10CFR50.47(b)(4) & App E to 10CFR50 ML20205K7411999-04-0707 April 1999 Safety Evaluation Supporting Amends 227 & 230 to Licenses DPR-44 & DPR-56,respectively ML20205N8341999-04-0101 April 1999 Part 21 Rept Re Automatic Switch Co Nuclear Grade Series X206380 & X206832 Solenoid Valves Ordered Without Lubricants That Were Shipped with Std Lubrication to PECO & Tva.Affected Plants Were Notified ML20205N9311999-03-31031 March 1999 Monthly Operating Repts for Mar 1999 for Limerick Generating Station,Units 1 & 2.With ML20205P5851999-03-31031 March 1999 Monthly Operating Repts for Mar 1999 for Peach Bottom Units 2 & 3.With ML20204G9851999-03-11011 March 1999 Safety Evaluation Re Revised Emergency Action Levels for Limerick Generating Station,Units 1 & 2 ML20207J7461999-02-28028 February 1999 Monthly Operating Repts for Feb 1999 for Limerick,Units 1 & 2.With ML20207G9971999-02-28028 February 1999 Monthly Operating Repts for Feb 1999 for Peach Bottom Units 2 & 3.With ML20199G2371999-01-31031 January 1999 Rev 0 to NEDO-32645, Limerick Generating Station,Units 1 & 2 SRV Setpoint Tolerance Relaxation Licensing Rept ML20199L5301999-01-19019 January 1999 Special Rept:On 981214,seismic Monitor Was Declared Inoperable.Caused by Spectral Analyzer Not Running.Attempted to Reboot Sys & Then Sent Spectral Analyzer to Vendor for Analysis & Rework.Upgraded Sys Will Be Operable by 990331 B110078, Rev 1 to GE-NE-B1100786-01, Surveillance Specimen Program Evaluation for Limerick Generating Station,Unit 11998-12-31031 December 1998 Rev 1 to GE-NE-B1100786-01, Surveillance Specimen Program Evaluation for Limerick Generating Station,Unit 1 ML20199F9611998-12-31031 December 1998 Monthly Operating Repts for Dec 1998 for Limerick Generating Station.With ML20206P1651998-12-31031 December 1998 Fire Protection for Operating Nuclear Power Plants, Section Iii.F, Automatic Fire Detection ML20205K0381998-12-31031 December 1998 PECO Energy 1998 Annual Rept. with ML20206D3591998-12-31031 December 1998 1998 PBAPS Annual 10CFR72.48 Rept. with ML20206D3651998-12-31031 December 1998 1998 PBAPS Annual 10CFR50.59 & Commitment Rev Rept. with ML20199E3471998-12-31031 December 1998 Monthly Operating Repts for Dec 1998 for Peach Bottom,Units 1 & 2.With ML20198A3871998-12-10010 December 1998 Safety Evaluation Supporting Licensee Response to GL 95-07, Pressure Locking & Thermal Binding of Safety-Related Power- Operated Gate Valves ML20198C7151998-12-10010 December 1998 Rev 1 to COLR for LGS Unit 1,Reload 7,Cycle 8 ML20196G7021998-12-0202 December 1998 SER Authorizing Proposed Alternative to Delay Exam of Reactor Pressure Vessel Shell Circumferential Welds by Two Operating Cycles ML20206N4061998-11-30030 November 1998 Monthly Operating Repts for Nov 1998 for Limerick Generating Station,Units 1 & 2.With ML20196E8261998-11-30030 November 1998 Response to NRC RAI Re Reactor Pressure Vessel Structural Integrity at Peach Bottom Units 2 & 3 ML20198B8591998-11-30030 November 1998 Monthly Operating Repts for Nov 1998 for Pbaps,Units 2 & 3. with 1999-09-30 |
| Event date: | |
|---|---|
| Report date: | |
| 0002086009R00 - NRC Website | |
text
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PHILADELPHIA ELECTRIC COMPANY 2301 MARKET STREET P.O. BOX 8699 PHILADELPHI A. PA.19101 1215)841 4000 April 14, 1986 Docket Nos. 50-277 50-352 Dr. Thomas E. Murley, Administrator '
Region I U.S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, PA 19406
SUBJECT:
Delayed Submittal of Two Licensee Event Reports
Dear Dr. Murley:
On March 12, 1986, two Licensee Event Reports were discovered as not having been mailed to the Document Control Desk in a timely manner. The purpose of Chis letter is to provide an explanation of this incident which was immediately reported to the Resident Site Inspectors of each plant'upon. discovery. The reports of concern are:
Peach Bottom Atomic Power Station Docket No. 50-277 LER 2-86-04, February 24, 1986 Limerick Generating. Station Docket No. 50-352 LER 86-009, February 26, 1986 The Licensing Section discovered this error by means of internal procedures which have been in use since 1961. The subsequent search found the two original reports,_ which had been misplaced in a "to be copied" hin. The reports were immediately telecopied to the Resident Site Inspectors and mailed to the Document Control Desk. The reports were also telecopied to the Region I Of fice to minimize effects of the delay.
8605020327 860414 PDR 5 ADOCK 05000277 pyg_ ,
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Dr. Thomas E. Murley April 14, 1986 Page.2 A change has been made to the process of distributing correspondence-to prevent this problem from. recurring. The original . signed reports will now be mailed immediately af ter a single copy is produced for the remaining distribution copies.
We regret any inconvenience these delayed submittals may
- have caused.
V t yours,
_/2 G. h Superintendent Nuclear Generation Division cc: ' E. M. Kelly, Senior Resident Site Inspector (LGS)
T. P. Johnson, Resident Site Inspector (PBAPS) w