ML20010E200
| ML20010E200 | |
| Person / Time | |
|---|---|
| Site: | Fermi, 05000452, 05000453  |
| Issue date: | 08/25/1981 |
| From: | Wells D DETROIT EDISON CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| 10CFR-050.55E, 10CFR-50.55E, EF2-54-143, NUDOCS 8109030195 | |
| Download: ML20010E200 (2) | |
Category:DEFICIENCY REPORTS (PER 10CFR50.55E & PART 21)
MONTHYEARNRC-97-0141, Deficiency Rept Re Malfunction of EDG Number 11 Automatic Voltage Regulator (AVR) Printed Circuit Board Rev B,Due to Failure of Operational Amplifier U8 Chip.Avr Board Rev B Was Sent Offsite to Independent Engineering Facility1997-12-23023 December 1997
[Table view]Deficiency Rept Re Malfunction of EDG Number 11 Automatic Voltage Regulator (AVR) Printed Circuit Board Rev B,Due to Failure of Operational Amplifier U8 Chip.Avr Board Rev B Was Sent Offsite to Independent Engineering Facility ML20211M6491997-10-0808 October 1997 Addenda 1 to Part 21 Rept Re Weldments on Opposed Piston & Coltec-Pielstick Emergency stand-by Diesel gen-set lube-oil & Jacket Water Piping Sys.Revised List of Potentially Affected Utils to Include Asterisked Utils,Submitted ML20211H7911997-09-30030 September 1997 Part 21 Rept Re Failure of Weldment Associated w/lube-oil Piping Sys on 970804 at Millstone,Unit 2.Root Cause Is Not Yet Known.Quality of Weldment Is Being Considered.Listed Util Sites Affected NRC-97-0005, Part 21 Rept Re 961113,EDG 11 Failed Surveillance Test 24.307.01 for LOP Coincident W/Loca.Avr Board Rev B Was Sent Offsite to an Independent Engineering Test Facility. CA Include More Analysis & Testing of AVR Board1997-02-0606 February 1997 Part 21 Rept Re 961113,EDG 11 Failed Surveillance Test 24.307.01 for LOP Coincident W/Loca.Avr Board Rev B Was Sent Offsite to an Independent Engineering Test Facility. CA Include More Analysis & Testing of AVR Board NRC-94-0072, Part 21 Rept Re Improper Installation of Thermo-Lag Fire Barrier Matl Furnished & Delivered by Thermal Science,Inc. Eight of Ten Thermo-Lag Fire Barriers Installed by Pr Sussman Co Being Replaced1994-08-15015 August 1994 Part 21 Rept Re Improper Installation of Thermo-Lag Fire Barrier Matl Furnished & Delivered by Thermal Science,Inc. Eight of Ten Thermo-Lag Fire Barriers Installed by Pr Sussman Co Being Replaced ML20070H1471994-07-15015 July 1994 Part 21 Rept Re Problems W/Thermolag Fire Barriers.Initially Reported on 940715.Replaced Thermolag Fire Barriers ML20059H7721994-01-17017 January 1994 Part 21 Rept Re Virginia Power Notifying Fairbands Morse Via Failure Analysis Rept NESML-Q-058 of Defective Air Start Distributor cam,16104412 ML20059F2631994-01-0707 January 1994 Part 21 Rept Re Air Start Distributor Cam Mfg by Fairbanks Morse.Mfg Suggests That Site Referenced in Encl App I Inspect Air Start Distributor Cam as Soon as Practical ML20058G5981993-11-17017 November 1993 Part 21 Rept Re Westronics Recorders,Model 2100C.Signal Input Transition Printed Circuit Board Assembly Redesigned to Improve Recorder Immunity to Electromagnetic Interference.List of Affected Recorders & Locations Encl ML20057G1511993-10-0707 October 1993 Part 21 Rept Re Westronics Model 2100C Series Recorders. Informs That Over Several Tests,Observed That Recorder Would Reset During Peak Acceleration & Door Being Forced Off Recorder.Small Retaining Clips Added to Bottom of Door ML20102B2071992-06-24024 June 1992 Part 21 Rept Re Cracking of Stellite 21 Hardfacing on Guide Nose of Poppets Supplied as Part of MSIV Leakage Improvement Mod.Initially Reported by Clei on 920522. Recommends That Liquid Penetrant Exam Be Performed ML20090L8801992-03-18018 March 1992 Part 21 Re Cracked Piston Castings Received from Acme Foundry,Fairbanks Morse & General Casting.Magnetic Particle Insp of All Pistons Will Be Performed.List of Affected Plants Encl ML20059M1751990-09-24024 September 1990 Supplemental Part 21 Rept 1 Re Defect in Coltec Industries, Inc Connecting Rod Assemblies Nuts/Bolts on Model 38TD8-1/8 Emergency Generators.Initially Reported on 851120.Nuts/bolts for Assemblies at Stated Plants Inspected & Replaced ML20011F5971990-02-22022 February 1990 Part 21 Rept Re Solder Connections in ABB 27/59 Relays Deteriorated Due to Thermal Stress,Causing Bonding of Printed Wiring Pattern to Glass Epoxy Circuit Board.Interim Circuit Board W/Larger Pads & Higher Wattage Will Be Used ML20011F1941990-02-22022 February 1990 Part 21 Rept Re Abb 27/59 Relay Catalog Series 211L.Solder Connections to Printed Wiring Runs on Bottom of Circuit Board Deteriorated Due to Thermal Stress.No Actual Failure Occurred & Relays to Be Changed at Next Outage NRC-89-0267, Deficiency Rept Re Item 143 on as-built Deviations.Qa Audit Conducted on Category C Deviations in Sept 1989.Remaining Category C Deviations Resolved During Refueling Outage1989-11-30030 November 1989 Deficiency Rept Re Item 143 on as-built Deviations.Qa Audit Conducted on Category C Deviations in Sept 1989.Remaining Category C Deviations Resolved During Refueling Outage ML20196B8481988-01-29029 January 1988 Part 21 Deficiency Rept Re HPCI Suction Pipe Overpressure Transient.Initially Reported on 880129.Caused by Installation of Lift/Plug Check Valve.Potential Water Hammer Condition Corrected by Replacing Valve NRC-87-0259, Part 21 Rept Re Unqualified Kalrez Soft Seats Used in Feedwater Check Valves Supplied by Atwood & Morrill Co. Initially Reported on 871203.Soft Seats for Valves Replaced W/Soft Seats Using Parker Compound E692-751987-12-0808 December 1987 Part 21 Rept Re Unqualified Kalrez Soft Seats Used in Feedwater Check Valves Supplied by Atwood & Morrill Co. Initially Reported on 871203.Soft Seats for Valves Replaced W/Soft Seats Using Parker Compound E692-75 NRC-87-0105, Part 21 Rept Re Failures of Hydrogen/Oxygen Sampling Sys Supplied by Exo Sensor,Inc.Initially Reported on 870630. Sensors to Be Replaced at 6-month Intervals & Tested Every 30 Days to Ensure Operability1987-07-0606 July 1987 Part 21 Rept Re Failures of Hydrogen/Oxygen Sampling Sys Supplied by Exo Sensor,Inc.Initially Reported on 870630. Sensors to Be Replaced at 6-month Intervals & Tested Every 30 Days to Ensure Operability ML20215G2441987-06-16016 June 1987 Part 21 Rept Re Failure of Load Sequencing Equipment Supplied in Aug 1977 During Scheduled Testing.Caused by Open Electrical Connection on One Crimp Lug.Since 1978,insulated Lugs Used on All Equipment ML20211P7211987-02-23023 February 1987 Part 21 Rept Re Rockbestos Coaxial Cable Used in Sorrento Electronics Digital & Analog high-range Radiation Monitor. Insulation Resistance at High Temp Not High Enough for Ion Chamber & Associated Electronics to Operate Properly ML20206S0841986-06-30030 June 1986 Part 21 Rept Re Possible Cut Wires in Wire Harness of Bbc Brown Boveri K600/K800 Circuit Breakers.Initially Reported on 860509.Safety Implications Listed.Gear Guard Designed to Prevent Cut Wires ML20211D8351986-06-0606 June 1986 Part 21 Rept Re Failure of Four External Closing Springs on MSIVs Supplied to Plant Due to Quench Cracks Developed During Mfg Process.Encl List Details Utils,Plants & Quantity & Size of Valves Supplied ML20195E4881986-05-23023 May 1986 Part 21 Rept Re Potential Failure of Ite/Gould Disconnect Switch,Type 7860 Ds Series.Instructions for Verification of Proper Operation of Switches Included in Notification to Plants.New Switches Available by 860901 ML20141A2501986-02-25025 February 1986 Part 21 Rept Re Two Broken Carrier Assemblies from NEMA Size 5 Contactor A103G12,preventing Proper Closing of Contactor. Breakage Believed Due to Dropping Device in Shipping Carton. Packaging Modified as of 860205 ML20151X3641986-01-30030 January 1986 Revised Page 3-4 to Attachment 3 to Deficiency Rept Re Traversing in-core Probe Nitrogen Purge Line Isolation & RWCU Sys Mods.Detailed Review of Potentially Overloaded Embedments Continuing & Will Be Completed Prior to Restart ML20138P0281985-12-13013 December 1985 Part 21 Rept Re Defect Identified in Two Oxygen Sensors. Added Thickness of Matl Will Eventually Cause Failure in Diffusion Membrane of Sensors.Sensors in Field Replaced ML20137S4441985-11-26026 November 1985 Part 21 Rept Re Unparallel Fitup of Nut to Mating Surface of Connecting Rod Cap & Nonperpendicular Faces of Nuts to Thread Pitch Line.Nuts & Bolts in Assembled Calvert Cliffs Onsite Spare Engine Will Be Replaced ML20198C8601985-10-23023 October 1985 Amended Final Deficiency Rept,Item 116 Re Potential Design Defect Which Allowed Freezing of Buried Piping Sys.Initially Reported on 840131.Constant Flow of 0.1 Gpm Through Affected Fire Protection Lines Will Be Maintained ML20210G9921985-08-13013 August 1985 Part 21 Rept Re Failure of Isolated Worm Shaft Gear When Certain Critical Speeds Combined W/Repetitive Transfer of Actuator Clutch Mechanism from Manual (Handwheel) to Motor Drive Mode.Two Possible Solutions Noted ML20108D5681985-03-0606 March 1985 Suppl to Final Deficiency Rept,Item 146,re Failure of Emergency Diesel Generators 11 & 12.Actions Taken to Minimize Stress & Deterioration of Bearings.Operating Procedures Modified & Quarterly Oil Filter Checks Planned ML20099M1751985-03-0606 March 1985 Revised Final Deficiency Rept,Item 101 Re Debris in Piping Sys.Initially Reported on 850114.Items Removed & Safety Analysis Performed ML20107K4701985-02-16016 February 1985 Final Deficiency Rept,Item 143 Re Deviations in Instrument Racks from Applicable Instrumentation & Controls Design Drawings.Initially Reported on 841219.Checklists Will Be Used During Verification of Drawing Rev Process ML20107H9371985-02-14014 February 1985 Final Deficiency Rept,Item 145 Re Tubing Configuration & Connection Hook Up Discrepancy.Initially Reported on 850115. Solenoid Valves on Nitrogen Inerting/Purge Makeup Sys Reinstalled.Operation Will Be Verified ML20107F1181985-02-12012 February 1985 Final Deficiency Rept,Item 146 Re Failure of Colt Industries Emergency Diesel Generators 11 & 12.Initially Reported on 850118.Procedures Revised to Require 2-minute Prelubrication Prior to Generator Starts ML20106B5021985-02-0101 February 1985 Final Deficiency Rept,Item 142 Re Failure of Two Target Rock Solenoid Valves.Initially Reported on 841213.Engineering Design Package & Field Mod Request Issued to Change Field Wiring ML20101U0751985-01-18018 January 1985 Interim Deficiency Rept,Item 143 Re Deviations Between Design Documents & as-built Plant.Initially Reported on 841218.Evaluation of as-built Drawings to Define Scope of Problem Performed ML20101U0591985-01-15015 January 1985 Amended Deficiency Rept,Item 111 Re Design Defect on RHR Reservoir Freeze Over.Temporary Auxiliary Boiler Will Be Used to Add Heat to RHR Svc Water Reservoirs,Instead of Operating Emergency Diesel Generators ML20114D2251985-01-11011 January 1985 Interim Deficiency Rept,Item 142 Re Failure of Two Target Rock Solenoid Valves.Initially Reported on 841213. Investigation of Cause,Scope & Necessary Corrective Action for Problem Continuing ML20101P2771984-12-18018 December 1984 Final Deficiency Rept,Item 141 Re Deviations from Specified Clearance Between Cable Trays & Vertical Support Members. Initially Reported on 841107.Item Not Reportable Per 10CFR50.55(e) ML20101M9621984-12-13013 December 1984 Amend to Final Deficiency Rept,Item 114 Re Possible Overpressurization of North RHR Hx.Initially Reported on 840124.Investigation & Analysis Determined HX Acceptable for Intended Function ML20101M9521984-12-12012 December 1984 Final Deficiency Rept,Item 139 Re Deficient Shop Weld in Fluid Head Structure.Initially Reported on 841015.Review of Stress Calculations Revealed Max Stress on Welds Does Not Exceed Allowable.Item Not Reportable Per 10CFR50.55(e) ML20100N8841984-11-30030 November 1984 Supplemental Final Deficiency Rept,Item 111 Re Design Deficiency on RHR Reservoir Freeze Over.Methods for Adding Heat to RHR Reservoir Clarified ML20100N8651984-11-30030 November 1984 Amended Final Deficiency Rept,Item 116 Re Potential Design Deficiency Allowing Freezing of Buried Piping Sys.Walls Will Be Installed & Temp Monitored.Pipes Will Not Be Rerouted ML20100L2041984-11-30030 November 1984 Interim Deficiency Rept,Item 141 Re Deviations from Specified Clearance Between Cable Trays & Vertical Support Members.Initially Reported on 841107.As-built Tray/Hanger Clearance for Hangers & Cable Trays Acceptable ML20100K7301984-11-27027 November 1984 Final Deficiency Rept,Item 129 Re Lack of Design Calculations for HVAC Duct Supports.Initially Reported on 840614.Supports & Base Plates Modified & Installation Discrepancies Documented on Nonconformance Repts ML20099F5011984-11-0505 November 1984 Final Deficiency Rept,Item 121 Re Water Found in HPCI Lube Oil Reservoir.Initially Reported on 840330.Byron-Jackson Field Mod Request 6337 Revised to Provide Proper Piping Configuration for Main Pump Seal ML20099E3911984-11-0303 November 1984 Final Amended Deficiency Rept,Item 76 Re Limitorque Switch Rotor Failures.Initially Reported on 820731.Repairs Performed Per Maint Instructions MI-M070,M179,M182,M203,M272 & M187 ML20099F5381984-11-0202 November 1984 Final Part 21/deficiency Rept Re Contaminated Hydraulic Fluid in Hydraulic Pipe Snubbers.Initially Reported on 821015.All Affected Hydraulic Pipe Snubbers Returned to Power Piping Co for Refurbishment ML20099F5261984-10-31031 October 1984 Final Deficiency Rept,Item 112 Re Poor Quality of Vendor Connection Workmanship in Emergency Diesel Generator Panels. Initially Reported on 840113.Deficient Wiring Terminations Documented on Nonconformance Repts Reterminated 1997-09-30 Category:TEXT-SAFETY REPORT MONTHYEARML20217N4381999-10-25025 October 1999
[Table view]Safety Evaluation Supporting Amend 17 to License DPR-9 ML20217P3551999-10-22022 October 1999 LER 99-S01-00:on 990922,loaded 9mm Handgun Was Discovered on Truck Cargo Area of Vehicle Inside Protected Area.Caused by Inadequate Vehicle Search.Guidance in Procedures & Security Training to Address Multiple Vehicle Searches Was Provided ML20217M7121999-10-19019 October 1999 Safety Evaluation Supporting Amend 135 to License NPF-43 05000341/LER-1999-004, :on 990913,HPCI Sys Was Noted Inoperable.Caused by Failed HPCI Room Temp Switches.Replaced Temp Switches & HPCI Was Restored to Operable Status.With1999-10-13013 October 1999
NRC-98-0139, Monthly Operating Rept for Sept 1998 for Fermi,Unit 2.With1998-09-30030 September 1998 Monthly Operating Rept for Sept 1998 for Fermi,Unit 2.With ML20154H8161998-09-30030 September 1998 Rev 0 to COLR Cycle 7 for Fermi 2 ML20153B8811998-09-18018 September 1998 Safety Evaluation Accepting Request for Relief from Certain Requirements of ASME Boiler & Pressure Vessel Code,Section Xi,For Plant,Unit 2 ML20153C4781998-09-16016 September 1998 Safety Evaluation Supporting Amend 128 to License NPF-43 ML20151X0651998-09-11011 September 1998 Safety Evaluation Re Inservice Testing Program Relief Request VR-63 for Plant ML20153B7921998-08-31031 August 1998 Rev 0 to Fermi 1 Sar NRC-98-0111, Monthly Operating Rept for Aug 1998 for Fermi 2.With1998-08-31031 August 1998 Monthly Operating Rept for Aug 1998 for Fermi 2.With ML20237E1751998-08-25025 August 1998 Safety Evaluation Supporting Amend 127 to License NPF-43 ML20237E1171998-08-25025 August 1998 Safety Evaluation Accepting Licensee Relief Requests for First 10-yr Interval Inservice Insp Nondestructive Exam Program ML20237E2071998-08-25025 August 1998 Safety Evaluation Supporting Amend 126 to License NPF-43 ML20237C5571998-08-20020 August 1998 Safety Evaluation Supporting Amend 125 to License NPF-43 ML20236X8611998-08-0505 August 1998 SER Related to Revised Feedwater Nozzle Analysis to Facility Operating License NPF-43,Enrico Fermi Nuclear Power Plant, Unit 2 ML20237D1491998-08-0404 August 1998 Safety Evaluation Supporting Amend 124 to License NPF-43 1999-09-30 |
Text
Danald A Weds
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Detroit
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25, 1981,W {
August
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EF2-54,143
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Mr. James G. Feppler, Director Region III
% g rroes U. S. Nuclear Regulatory Coanission 9;
/g 799 Roosevelt Road Glen Ellyn, lb 00137 Cu
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Dear Mr. Keppler:
Subject:
Interim Report of 10CFR50.55(e) Item on Transversing In-Core Probe System (#36)
This additional interna report on the Transversing In-Core Probe System problen has been prepared to provide you with the current status of this problea.
This iten was originally reported to Mr. R. Knop of NRC-Region III by Detroit Edison's Mr. H. A. Walker, Supervisor-Construction Quality Assurance on December 29, 1980.
At that tire, Engineering investigation indicated that the transversing in-core probe instrument tubing is possibly deficient. This detennination was made by Project Design and F. ?ld Engineering while doing a design analysis of the thennal novenents associated with the prinksg containnent liner during a loss of coolant accident (LDCA).
The Detroit Edison Engineering Research Department nocked up the existing design and perforned tests based on the thernal novement associated with o IDCA. These tests have been docunented to provide a basis for acceptance /
verification of the existing design in a forthcoming report. The analysis contained in the report should resolve this item.
Another report on this item, either interim or final, is scheduled to be I
sent to you on or before Decerber 23, 1981.
If you have questions concern-ing this matter, please contact Mr. H. A. Walker, Supervisor-Construction Quality Assurance.
Very truly yours,
- 2. h
.cp1 IVM:mu 8109030195 810825 PDR ADOCK 05000341 S
PDR AUG 2 71981
Mr. James G. Keppler, Director August 25, 1981 Page Two EP2-54143 cc:
Mr. Victor Stello, Jr., Director Office of Inspection and Enforcement Division of Reactor Inspection Programs U.S. Nuclear Regulatory Cormtission Washington, D.C. 20555 Mr. Bruce Little, Resident Inspector U.S. Nuclear Regulatory Conmission Resident Inspectors Office 6450 North Dixie liighway Newport, Michigan 48166 I