ML20134D796
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| ML20134D796 | |
| Person / Time | |
|---|---|
| Site: | Trojan File:Portland General Electric icon.png |
| Issue date: | 08/09/1985 |
| From: | Orser W PORTLAND GENERAL ELECTRIC CO. |
| To: | Martin J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| WSO-521-85, NUDOCS 8508190364 | |
| Download: ML20134D796 (1) | |
Similar Documents at Trojan | |
|---|---|
Category:REPORTABLE OCCURRENCE REPORT (SEE ALSO AO LER)
MONTHYEARML20057B3231993-09-16016 September 1993
[Table view]Special Rept 93-02:on 930831,discovered a Wind Speed Instrument Channel to Have Intermittent Fault at Low Speed Due to Unknown Cause.Replaced Wind Speed Processor Card ML20056H1481993-08-30030 August 1993 Special Rept 01-93:on 930804,Deluge Sys 19 Discovered Inoperable During Surveillance Testing.Caused by Failure of Deluge Valve Due to Normal Wear.Required Fire Watches Established & Maintained Until Deluge Sys Restored ML20127B5851993-01-0606 January 1993 Special Rept SR-08-92:from 921209-30,fire Door 288 in South Side Wall of Electrical Penetration Shield Wall Blocked Open to Support Maint Activities.Hourly Fire Patrol Established While Door Blocked Open ML20062G8011990-11-15015 November 1990 Revised Special Rept:On 880916-891221,29 Dampers Could Not Be Confirmed to Meet All Design Specs & Were Inoperable. Problems Identified During Program to Identify Deviations from Mfg Installation Details for Fire Dampers ML20058N0881990-08-10010 August 1990 Special Rept:On 900710,review Revealed That 99 Fire Dampers Classified as Tech Spec Fire Barriers.Qa Audit in Fall of 1989 Identified Installation Requirements for Fire Dampers Failed to Permit Testing.Repairs to Be Completed by 900928 ML20056B0331990-08-0202 August 1990 Special Rept:On 900626,condenser Air Ejector Noble Gas Effluent Monitor PERM-6C Declared Inoperable.Caused by High Flow Rates of off-gases Present.Chiller Repaired & Monitor Placed in Svc ML20058L2121990-08-0202 August 1990 Special Rept:On 900720,discovered Circuit Breaker,Which Supplies Stated Fire Pump,In Open Position.Pump Would Have Been Unable to Automatically Start.Caused by Fire Water Sys Low Pressure While Filling Sprinkler.Personnel Counseled ML20058N6491990-07-10010 July 1990 Special Rept:On 900618,Deluge Sys 19 for Electrical Penetration Area Declared Inoperable Due to Electrical & Electronic Problems within Sys Actuation Panel.Fire Watch Established ML20248B1821989-09-27027 September 1989 Special Rept:On 890908,Emergency Diesel Generator Alternate Air Damper VX-103 Declared Inoperable.No Ul Label or Vendor Marking Found on Unit.Nonconformance Rept Initiated.Expects That Damper Will Be Operable by 891231 ML20246D5981989-08-28028 August 1989 Special Rept:On 890720,condensation Collected in Line Leading to Condenser Air Ejector Effluent Sampler & Flooded Flow Limiting Switch,Rendering Switch Inoperable for More than 7 Days.Switch Replaced & Sampler Restored to Svc ML20245F5991989-07-26026 July 1989 Reissue of Special Rept Re 3-h Fire Barrier Nonfunctional for Greater than 7 Days.Emergency Diesel Generator Ceiling Removed on 890707 for Const.Fireproofing Restored as of 890725.Compensatory Measures of Tech Spec 3.7.9 Established ML20245F6071989-07-26026 July 1989 Reissues Special Rept Re Cable Spreading Room Suppression Sys Nonfunctional for Greater than 14 Days After Declared Inoperable on 890626 to Support Planned Mods to Sys.Fire Watch Established.Sys Expected to Be Operable by 890807 ML20247L8911989-06-26026 June 1989 Special Rept:On 890626,cable Spreading Room Suppression Sys Declared Inoperable.Compensatory Measures of Tech Spec 3.7.8.2 Established ML20247L9011989-06-26026 June 1989 Special Rept:On 890707,declared Fire Barrier in East & West Emergency Diesel Generator Ceiling Inoperable.Fireproofing Restored on 890725 & Compensatory Measures of Tech Spec 3.7.9 Established ML20247J1281989-05-26026 May 1989 Special Rept:On 890426,penetration 174A,located on 45-ft Elevation of Turbine Bldg East Wall,Declared Inoperable & Remained Inoperable for More than 7 Days.Caused by Concrete Failing on One Side of Penetration.Detectors Checked ML20246E7591989-05-0505 May 1989 Special Rept:On 890411,13 & 22,fire Barriers Nonfunctional for Greater than 7 Days.Barriers Degraded to Support Indicated Maint Work in Each Area.Local Smoke Detector Checked & Hourly Fire Patrol Established ML20248J7251989-04-0707 April 1989 Special Rept:On 890325,train B Narrow Range North Containment Sump Level Instrument Declared Inoperable.On 890327,instrument Could Not Be Restored to Operable Status within 72 H.Caused by Air in-leakage Into Sealed Ref Line ML20247F8001989-03-27027 March 1989 Ro:On 890325,train B narrow-range North Containment Sump Level Instrument Failed Channel Check.Caused by Air in-leakage Into Sealed Ref Leg of Transmitter.Replacement Planned During 1989 Refueling Outage Scheduled on 890406 ML20206A0761988-11-0404 November 1988 Special Rept Re Fire Barriers Remaining Inoperable for Greater than Seven Days in Listed Areas.Caused by Doors Being Inspected Once Every Six Months Leading to Large Number of Doors Needing Repair.Insp Switched to Monthly ML20205A2801988-10-18018 October 1988 Special Rept:On 880912,Tech Spec 3.7.8.1 Violated.Caused by Diesel Fire Pump Being Inoperable for More than 7 Days for Svc Due to Incapability of Developing Flow Rate of 3,000 Gpm.Pump Expected to Be Restored to Svc by 881031 ML20154N2841988-09-16016 September 1988 Special Rept:Fire Barriers in Listed Areas Declared Inoperable Greater than 7 Days.Checking Local Smoke Detectors & Establishing Hourly Fire Patrol Established as Required ML20153B9561988-08-22022 August 1988 Special Rept:On 880718,diesel Fire Pump Out of Svc for Routine Preventive Maint in Excess of 7 Days.Fire Truck Brought on Site & Available as Redundant Fire Suppression Source During Period.Doors Will Be Replaced by 881030 ML20154M6711988-05-26026 May 1988 Special Rept:Listed Fire Barriers Declared Inoperable on Dates Indicated & Remained Inoperable for Greater than 7 Days.Barriers Degraded in Order to Support Indicated Maint Work in Each Area.Barriers Will Be Restored by 880630 ML20153F8001988-05-0606 May 1988 Special Rept:On 880416,20,21 & 24,fire Barriers in Listed Areas Declared Inoperable for Greater than 7 Days. Compensatory Measures of Tech Spec 3.7.9 Established as Required ML20151Y1291988-04-27027 April 1988 Special Rept:On 880321 & 0401,fire Barriers in Listed Areas Declared Inoperable & Remained Inoperable for More than 7 Days.Barriers Degraded to Support Maint Work.Compensatory Measures of Tech Spec 3.7.9 Established ML20149H9811988-02-17017 February 1988 Special Rept:On 880128,listed Fire Barriers Determined to Be Nonfunctional to Provide 3-h Fire Barrier.Compensatory Measures of Tech Spec 3.7.9 Established as Required.Barriers Expected to Be Upgraded to Comply W/Current Stds by 880801 ML20196A0111988-01-29029 January 1988 Special Rept:On 880114,Channel a Narrow Range Containment Water Level Declared Inoperable.On 880115,narrow Range Level Instrument Not Restored to Operable Status.Cause Cannot Be Identified During Plant Operation.Repairs Planned ML20148G4501988-01-15015 January 1988 Special Rept:On 880114,Channel a Narrow Range Containment Water Level Instrument Declared Inoperable Due to Suspected Level Transmitter Problem.Alternate Method of Monitoring Containment Sump a Narrow Range Level Established ML20149E9461988-01-0808 January 1988 Special Rept:On 871223,3-h Fire Barrier Nonfunctional for Greater than 7 Days.Caused by Inadequate Const That Left Structural Separation Gap Between Fire Areas T8 & T1.Fire Patrol Established Until Repairs Made ML20149D8851988-01-0606 January 1988 Special Rept:On 871207,listed Fire Penetrations Determined to Be Nonfunctional for Greater than 7 Days.Caused by Normal Aging of Sealing Matl & Inadequate Restoration of Seals. Penetrations Repaired ML20234D3841987-12-30030 December 1987 Special Rept:On 871229,Channel a of Reactor Vessel Level Instrumentation Sys (RVLIS) Declared Inoperable.Caused by Hydraulic Isolator Failure.Adjustment Made.Failed Power Supply in RVLIS Channel B Replaced & Channel Made Operable ML20236T2201987-11-24024 November 1987 Special Rept:On 871112,south Fire Main Loop Removed from Svc to Repair Leak in Sys.Backup Fire Suppression Water Sys Established in Accordance W/Limiting Condition for Operation 3.7.8.1.Sys Returned to Operable Status on 871112 ML20236R5731987-11-18018 November 1987 Special Rept,Rev 1:updates 871027 Rept Re Violation of Tech Specs.Caused by Inoperability of Smoke Detectors for More than 14 Days Due Undetermined Operability Due to Temps Below 32 F.Replacement Expected to Be Completed by Feb 1988 ML20236Q8811987-11-13013 November 1987 Special Rept:On 871112,south Fire Main Loop Removed from Svc to Repair Leak in Sys.Backup Fire Suppression Water Sys Established ML20236F8951987-10-23023 October 1987 Special Rept:Smoke Detectors for Electrical Penetration Area Found to Be Inoperable.Hourly Fire Patrol Will Be Established During 871030-880401.Detector Replacement Expected to Be Completed by Feb 1988 ML20236C5931987-10-23023 October 1987 Special Rept:On 871010,both Channels of RCS Subcooling Margin Monitor Declared Inoperable.Caused by Failed High RCS Loop Resistance Temp Detector Input to Subcooling Margin Monitor.Periodic Engineering Test 7-5 Performed ML20236C8051987-10-21021 October 1987 Special Rept:On 871005,two Fire Barriers for Emergency Diesel Generator Exhaust Stack Penetrations Found to Be Nonfunctional.Tech Spec 3.7.9 Compensatory Measures Fulfilled & Smoke Detector Operability Verified ML20235X4271987-10-12012 October 1987 Special Rept:On 871010,both Channels of RCS Subcooling Margin Monitor Declared Inoperable.Caused by Suspected Computer Software Calculation Problem.Alternate Monitoring Procedure Established.Followup Rept Expected in 14 Days ML20235K0841987-09-28028 September 1987 Special Rept:On 870904,Door 41 Determined to Be Nonfunctional for Greater than 7 Days.Caused by Metal Panel Welded to One Side of Door,Deviating from Ul Listing.Repair Estimated to Be Completed on 880103 ML20234C8141987-09-15015 September 1987 Special Rept:On 870901,PORV PCV 456 Declared Inoperable Due to Excessive Leakage.Cause Undetermined.Valve Will Be Inspected When Facility Conditions Allow ML20237J5321987-08-12012 August 1987 Special Rept:On 870729 & 30,Doors 64 & 45,respectively, Determined Nonfunctional for Greater than 7 Days.Cause Unknown.Compensatory Measures Described in Tech Spec 3.7.9 Fulfilled on 870729 for Door 64 & on 870730 for Door 45 ML20235A2941987-07-0101 July 1987 Special Rept:On 870611,fire Detectors U127 & U128 Found Inoperable.Fire Watch Patrol Established to Inspect Zone. Estimated Completion Date for Repair & Return to Svc Is 870731 ML20235A2621987-07-0101 July 1987 Special Rept:On 870611,during Routine Insp,Fire Barrier Penetration P 2696 on South Wall of Diesel Auxiliary Feed Pump Room Found Inoperable.Caused by Electrical Extension Cord Routed Through Penetration.Fire Patrol Established ML20216G5311987-06-23023 June 1987 Special Rept:On 870602,determined That 3 H Fire Barrier Doors 52 & 53 Nonfunctional for Greater than 7 Days,Contrary to Limiting Condition for Operation 3.7.9.Caused by Improper Welding Condition.Doors Will Be Repaired by 871001 ML20215G8911987-06-17017 June 1987 Ro:On 870605,discovered Door 428 Inoperable for Greater than 7 Days,Exceeding Limiting Condition for Operation 3.7.9. Cause Unstated.Compensating Measures Fulfilled on 870605. Completion Date for Repair Is 870801 ML20209E4181987-04-24024 April 1987 Special Rept:On 870408,Door 126,separating Electrical Penetration Fire Area E-1 & Turbine Bldg Fire Area T-1, Determined Nonfunctional for More than 7 Days.Caused by Deficient Latching Mechanism.Latch Corrected ML20207R3591987-03-10010 March 1987 Special Rept:On 870220,west Wall of Turbine Bldg Electrical Switchgear Room Determined to Be Nonfunctional for Greater than 7 Days.Void in West Wall Discovered While Installing New Equipment.Date for Repair & Return to Svc Is 870501 ML20210F4501987-02-0404 February 1987 Special Rept:On 870120,3-hr Fire Barrier Discovered to Be Nonfunctional for Greater than 7 Days.Door 69 Mechanically Blocked Open to Prevent Personnel Injury Since 860510.Parts Ordered from Mfg.Estimated Date for Repair Is 870901 ML20214P8091986-11-13013 November 1986 Special Rept:On 861014,fire Barrier Between Control Bldg Switchgear Room Train B & Electrical Auxiliary Room Train a Rated for 1.5 H Only.On 861017,3 H Fire Barrier in Turbine Bldg Nonfunctional.Barriers Restored or Upgraded ML20212P9071986-08-25025 August 1986 Special Rept:On 860722,diesel-driven Fire Pump Removed from Svc for Preventative Maint.Replacement Parts Not Received in Time to Return Pump to Svc within 7 Days.Component Parts Replaced & Pump Tested & Returned to Svc on 860630 1993-09-16 Category:TEXT-SAFETY REPORT MONTHYEARML20210F8701999-07-22022 July 1999
[Table view]Rev 1 to PGE-1076, Trojan Reactor Vessel Package Sar ML20209C6531999-07-0606 July 1999 Rev 8 to Defueled SAR, for Trojan Nuclear Plant ML20206H4501999-05-0505 May 1999 Safety Evaluation Supporting Amend 201 to License NPF-1 ML20206C9351999-04-23023 April 1999 Safety Evaluation Supporting Amend 199 to License NPF-1 ML20206C9751999-04-23023 April 1999 Safety Evaluation Supporting Amend 200 to License NPF-1 ML20207G9881999-03-0303 March 1999 Rev 6 to Trojan Nuclear Plant Decommissioning Plan ML20207J0781999-02-28028 February 1999 Update to Trojan ISFSI Sar ML20202G4511999-02-0202 February 1999 Rev 0 to PGE-1076, Trojan Reactor Vessel Package Sar ML20207C6981998-12-31031 December 1998 1998 Annual Rept for Trojan Nuclear Plant. with ML20195J2501998-11-17017 November 1998 Rev 7 to Trojan Nuclear Plant Defueled Sar ML20155E0561998-10-29029 October 1998 SER Approving Two Specific Exemptions Under 10CFR71.8 for Approval of Trojan Reactor Vessel Package for one-time Shipment to Us Ecology Disposal Facility Near Richland,Wa ML20155E0411998-10-27027 October 1998 Amend 7 to Quality-Related List Classification Criteria for Tnp ML20154R4121998-10-0202 October 1998 Requests Commission Approval,By Negative Consent,For Staff to Grant Two Specific Exemptions from Package Test Requirement Specified in 10CFR71 for Trojan Reactor Vessel Package & to Authorize one-time Transport for Disposal ML20237B6121998-08-13013 August 1998 Revised Trojan Reactor Vessel Package Sar ML20151W5471998-08-13013 August 1998 Rev 22 to PGE-8010, Poge Nuclear QA Program for Trojan Nuclear Plant ML20236Y2691998-08-0808 August 1998 Revised Trojan Rv Package Sar ML20249B4081998-06-17017 June 1998 Rev 6 to Trojan Nuclear Plant Defueled Sar ML20203E6291998-02-28028 February 1998 Trojan Nuclear Plant Decommissioning Plan ML20198T1741998-01-0404 January 1998 Rev 5 to Trojan Nuclear Plant Decommissioning Plan ML20248K6891997-12-31031 December 1997 Enron 1997 Annual Rept ML20203J3821997-12-31031 December 1997 Annual Rept of Trojan Nuclear Plant for 1997 ML20248K6931997-12-31031 December 1997 Pacificorp 1997 Annual Rept. Financial Statements & Suppl Data for Years Ended Dec 1996 & 97 Also Encl ML20203B0341997-11-26026 November 1997 Rev 5 to Trojan Nuclear Plant Defueled Sar ML20199F8141997-10-21021 October 1997 Requests Approval of Staff Approach for Resolving Issues Re Waste Classification of Plant Rv ML20216F4291997-07-25025 July 1997 Requests Commission Approval of Staff Approach for Reviewing Request from Poge for one-time Shipment of Decommissioned Rv,Including Irradiated Internals to Disposal Site at Hanford Nuclear Reservation in Richland,Wa ML20141F2311997-06-24024 June 1997 Rev 3 to PGE-1061, Tnp Decommissioning Plan ML20148K3541997-06-0909 June 1997 Safety Evaluation Supporting Amend 198 to License NPF-1 ML20148E8631997-05-31031 May 1997 Amend 6 to PGE-1052, Quality-Related List Classification Criteria for Trojan Nuclear Plant ML20148D2681997-05-23023 May 1997 Safety Evaluation Supporting Amend 197 to License NPF-1 ML20141H3181997-05-19019 May 1997 Safety Evaluation Supporting Amend 196 to License NPF-1 ML20140D9451997-03-31031 March 1997 Tnp First Quarter 1997 Decommissioning Status Rept ML20137K5811997-03-31031 March 1997 SAR for Rv Package ML20136D5591997-03-0606 March 1997 Safety Evaluation Approving Merger Between Util & Enron Corp ML20134B6231997-01-15015 January 1997 Draft Rev 3 of Proposed Change to Trojan Decommissioning Plan ML20217M2381996-12-31031 December 1996 Portland General Corp 1996 Annual Rept ML20217M2471996-12-31031 December 1996 Pacific Power & Light Co (Pacifcorp) 1996 Annual Rept ML20217M2551996-12-31031 December 1996 1996 Enron Annual Rept ML20135C3521996-12-31031 December 1996 Annual Rept of Trojan Nuclear Plant for 1996 ML20132G2831996-12-19019 December 1996 Rev 2 to PGE-1061, Trojan Nuclear Plant Decommissioning Plan ML20132H0011996-12-12012 December 1996 Rev 20 to PGE-8010, Portland General Electric Nuclear QA Program for Trojan Nuclear Plant ML20132B8491996-12-12012 December 1996 Rev 20 to PGE-8010, Trojan Nuclear Plant Nuclear QA Program ML20135B5241996-11-27027 November 1996 Rev 4 to Trojan Nuclear Plant Defueled Sar ML20135B5341996-11-25025 November 1996 Trojan ISFSI Safety Analysis Rept ML20134M3381996-11-20020 November 1996 SER Approving Physical Security Plan for Proposed Trojan ISFSI ML20134K6621996-11-11011 November 1996 Decommissioning Plan,Tnp ML20134F1211996-10-31031 October 1996 Safety Evaluation Supporting Amend 195 to License NPF-1 ML20134F4661996-10-30030 October 1996 Final Survey Rept for ISFSI Site for Trojan Nuclear Plant ML20134P4321996-09-30030 September 1996 Tnp Quarter Decommisioning Status Rept,Third Quarter 1996 ML20137K5321996-09-0505 September 1996 Rev 0 to H Analysis of Residue Protocol ML20137K5091996-06-28028 June 1996 Summary Rept Poge Tnp SFP Project 1999-07-06 |
Text
Portland General Electric Company Trojan Nuclear Plant P.O. Box 439 Rainier, Oregon 97048 (503)556 3713 August 9, 1985 WSO-521-85 Mr. John B. Martin Regional Administrator, Region V US Nuclear Regulatory Commission 1450 Maria Lane, Suite 210 Walnut Creek, CA 94596-5368
Dear Sir:
Special Report Limiting condition for operation (LCO) 3.3.3.11 of the Trojan Technical Specifications requires a special report be submitted if the number of operable channels of post-accident monitoring instrumentation is less than the required number.
The condenser air ejector effluent monitor (PRM-6) was inoper-able from July 4, 1985 when the plant entered Mode 2 until July 18, 1985. The cause of the failure was an inoperable flow switch and a stuck ball valve in a flow controller.
The flow switch and flow controller problems were attributed to moisture in the system. Action was taken to replace the flow switch and to relubricate the ball valve in the flow controller. A design modification is in progress to install an additional cooler to eliminate moisture from the system during all expected condenser offgas flow rate conditions.
Sincere ,
. W. S. Orser General Manager WSO/hB/W spat g c: Distribution t
File: 93.24a 8508190364 85000934 DR ADOCK O 9 I
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