PNO-III-86-060, on 860621,reactor Tripped on lo-lo Water Level Signal from Steam Generator D.Caused by Closing of Feedwater Isolation Valve Due to Failure of Control Logic Card
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| ML20211J961 | |
| Person / Time | |
|---|---|
| Site: | Callaway  |
| Issue date: | 06/23/1986 |
| From: | Forney W, Warnick R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| References | |
| PNO-III-86-060, PNO-III-86-60, NUDOCS 8606270114 | |
| Download: ML20211J961 (1) | |
Similar Documents at Callaway | |
|---|---|
Category:PRELIMINARY NOTIFICATION OF EVENT OR OCCURRENCE (PNO
MONTHYEARPNO-IV-99-035A, on 990810,heater Drain Line Pipe Rupture Occurred.Caused by Flow Accelerated Corrosion in Conjunction with Moisture Impingement.Licensee Has Completed Replacement of Damage Heater Drain Piping & Conducted Insps of Piping1999-08-18018 August 1999
[Table view]PNO-IV-99-035A:on 990810,heater Drain Line Pipe Rupture Occurred.Caused by Flow Accelerated Corrosion in Conjunction with Moisture Impingement.Licensee Has Completed Replacement of Damage Heater Drain Piping & Conducted Insps of Piping PNO-IV-99-035, on 990810,operators Initiated Manual Rt When High Pressure Heater Drain Line Ruptured in Turbine Bldg. Licensee Is Evaluating Options for Facilitating Repair & Restarting Plant.Region IV Will Conduct Special Insp1999-08-11011 August 1999 PNO-IV-99-035:on 990810,operators Initiated Manual Rt When High Pressure Heater Drain Line Ruptured in Turbine Bldg. Licensee Is Evaluating Options for Facilitating Repair & Restarting Plant.Region IV Will Conduct Special Insp PNO-IV-98-059, on 981129,licensee Commenced Plant Shutdown from 100% Power to Mode 3 to Replace Fan Motor.Resident Inspector Monitored Portion of Plant Shutdown from Cr.Info Has Been Discussed with Licensee1998-11-30030 November 1998 PNO-IV-98-059:on 981129,licensee Commenced Plant Shutdown from 100% Power to Mode 3 to Replace Fan Motor.Resident Inspector Monitored Portion of Plant Shutdown from Cr.Info Has Been Discussed with Licensee PNO-IV-97-069, on 971120,plant Received Security Threat. Licensee Implemented Interim Contigency Measures & Notified CPS as That Plant Was Also Mentioned in Threat.State of Mo Notified1997-11-20020 November 1997 PNO-IV-97-069:on 971120,plant Received Security Threat. Licensee Implemented Interim Contigency Measures & Notified CPS as That Plant Was Also Mentioned in Threat.State of Mo Notified PNO-III-88-011, on 880213,reactor Tripped from 100% Power Due to Main Turbine Trip.Safety Injection Sys Actuated Due to Low Steamline Pressure Signal.Relief Valve on Seal Leakoff Replaced W/Spare & Other Two Relief Valves Repaired1988-02-16016 February 1988 PNO-III-88-011:on 880213,reactor Tripped from 100% Power Due to Main Turbine Trip.Safety Injection Sys Actuated Due to Low Steamline Pressure Signal.Relief Valve on Seal Leakoff Replaced W/Spare & Other Two Relief Valves Repaired PNO-III-86-060, on 860621,reactor Tripped on lo-lo Water Level Signal from Steam Generator D.Caused by Closing of Feedwater Isolation Valve Due to Failure of Control Logic Card1986-06-23023 June 1986 PNO-III-86-060:on 860621,reactor Tripped on lo-lo Water Level Signal from Steam Generator D.Caused by Closing of Feedwater Isolation Valve Due to Failure of Control Logic Card PNO-III-86-047, on 860518,unit Shut Down to Repair Leaking Steam Generator C Feedwater Check Valve.Return to Svc Expected on 860522.State of Mo Informed1986-05-19019 May 1986 PNO-III-86-047:on 860518,unit Shut Down to Repair Leaking Steam Generator C Feedwater Check Valve.Return to Svc Expected on 860522.State of Mo Informed PNO-III-86-038, on 860423,nonvital Dc Circuit Breaker Found Tripped in Turbine Bldg.Caused by Equipment Operator Inadvertently Tripping Circuit Breaker.Security Surveillance Increased1986-04-24024 April 1986 PNO-III-86-038:on 860423,nonvital Dc Circuit Breaker Found Tripped in Turbine Bldg.Caused by Equipment Operator Inadvertently Tripping Circuit Breaker.Security Surveillance Increased PNO-III-86-036, on 860314,sabotage Threats Prompted Upgrade of Security Measures.Security Actions Reviewed by Region Iii.Plant Resumed Operations on 860415 After First Refueling Outage Which Began on 8602281986-04-15015 April 1986 PNO-III-86-036:on 860314,sabotage Threats Prompted Upgrade of Security Measures.Security Actions Reviewed by Region Iii.Plant Resumed Operations on 860415 After First Refueling Outage Which Began on 860228 PNO-III-86-022A, on 860314,unidentified Male Telephoned & Stated Some Tags from Mechanical Equipment Removed.Util Added Security Personnel & Checked Plant.No Abnormal Conditions Observed.Investigation Continuing1986-03-17017 March 1986 PNO-III-86-022A:on 860314,unidentified Male Telephoned & Stated Some Tags from Mechanical Equipment Removed.Util Added Security Personnel & Checked Plant.No Abnormal Conditions Observed.Investigation Continuing PNO-III-86-022, on 860312,unidentified Male Made Announcement Over PA Sys to Evacuate Containment.On 860313,sabotage Threat Received Via Telcon.Security Contingency Plan Measures for Communicated Threat Implemented1986-03-13013 March 1986 PNO-III-86-022:on 860312,unidentified Male Made Announcement Over PA Sys to Evacuate Containment.On 860313,sabotage Threat Received Via Telcon.Security Contingency Plan Measures for Communicated Threat Implemented PNO-III-86-001, on 860108,fire Destroyed Warehouse Bldg Outside Protected Area at Facility.Cause of Fire Undetermined.No Injuries Reported.No Radioactive Matl Involved.State of Mo & Region III Notified1986-01-0909 January 1986 PNO-III-86-001:on 860108,fire Destroyed Warehouse Bldg Outside Protected Area at Facility.Cause of Fire Undetermined.No Injuries Reported.No Radioactive Matl Involved.State of Mo & Region III Notified PNO-III-85-065A, on 850729,containment Spray Pump 1B Failed to Start Due to Incorrect Overcurrent Setpoint.Caused by Personnel Error.Licensee Investigation Complete.Erroneous Setpoint Could Have Existed Since 1984 W/No Pump Failures1985-08-0101 August 1985 PNO-III-85-065A:on 850729,containment Spray Pump 1B Failed to Start Due to Incorrect Overcurrent Setpoint.Caused by Personnel Error.Licensee Investigation Complete.Erroneous Setpoint Could Have Existed Since 1984 W/No Pump Failures PNO-III-85-065, on 850729,licensee Reported Possible Tampering Incident Involving Overcurrent Relay for Containment Spray Pump 1B.Relay Reset.Security Intensified. Investigation Underway1985-07-30030 July 1985 PNO-III-85-065:on 850729,licensee Reported Possible Tampering Incident Involving Overcurrent Relay for Containment Spray Pump 1B.Relay Reset.Security Intensified. Investigation Underway PNO-III-84-049, on 840611,OL Issued to Util for Callaway Nuclear Power Station.License Limited to Fuel Loading & Operation Up to 5% Power1984-06-12012 June 1984 PNO-III-84-049:on 840611,OL Issued to Util for Callaway Nuclear Power Station.License Limited to Fuel Loading & Operation Up to 5% Power ML20249A7501978-03-29029 March 1978 PNS-78-013:on 780328,guard Received Telephone Call from Female Caller Alleging That Bomb Had Been Placed in Reactor Bldg.Search of Bldg by Construction & Protective Personnel Failed to Disclose Any Suspect Devices ML20248L2531978-03-22022 March 1978 PNO-78-057:on 780321,W Smart Was Terminated for Failure to Perform Work Ordered by Foreman.Investigation of Firing of Smart Being Conducted,As Requested by Drey ML20236E9081978-03-0606 March 1978 PNS-78-000:on 780302,guard Received Telcon at Guard House from Anonymous Male Caller Who State, Bomb Will Go Off in twenty-five Minutes. When Asked Location of Bomb,Caller Hung Up.Guards Dispatched to Check for Possible Breaches ML20207G6471977-10-26026 October 1977 PNO-77-190:on 771026,an Ironworker Employed at Callaway Const Site Has Alleged That Defective Imbedments Were Installed in Concrete Structures & That QC Inspectors Inadequately Trained 1999-08-18 Category:TEXT-INSPECTION & AUDIT & I&E CIRCULARS MONTHYEARIR 05000483/19990101999-10-14014 October 1999
[Table view]Insp Rept 50-483/99-10 on 990913-16.No Violations Noted. Major Areas Inspected:Plant Support Re Biennial Exercise of Emergency Plan & Procedures IR 05000483/19990111999-09-22022 September 1999 Insp Rept 50-483/99-11 on 990812-20.No Violations Noted. Major Areas Inspected:Operations,Maint & Engineering IR 05000483/19990081999-09-13013 September 1999 Insp Rept 50-483/99-08 on 990725-0904.Noncited Violations Noted.Major Areas Inspected:Operations,Maintenance, Engineering & Plant Support IR 05000483/19990071999-09-10010 September 1999 Insp Rept 50-483/99-07 on 990809-13.No Violations Noted. Major Areas Inspected:Licensed Operator Requalification Program to Determine Whether Program Incorporated Appropriate Requirements for Evaluating Operators PNO-IV-99-035A, on 990810,heater Drain Line Pipe Rupture Occurred.Caused by Flow Accelerated Corrosion in Conjunction with Moisture Impingement.Licensee Has Completed Replacement of Damage Heater Drain Piping & Conducted Insps of Piping1999-08-18018 August 1999 PNO-IV-99-035A:on 990810,heater Drain Line Pipe Rupture Occurred.Caused by Flow Accelerated Corrosion in Conjunction with Moisture Impingement.Licensee Has Completed Replacement of Damage Heater Drain Piping & Conducted Insps of Piping IR 05000483/19990061999-08-13013 August 1999 Insp Rept 50-483/99-06 on 990613-0724.One Severity Level 4 Violation Noted & Being Treated as Ncv.Major Areas Inspected:Operations,Maint & Plant Support PNO-IV-99-035, on 990810,operators Initiated Manual Rt When High Pressure Heater Drain Line Ruptured in Turbine Bldg. Licensee Is Evaluating Options for Facilitating Repair & Restarting Plant.Region IV Will Conduct Special Insp1999-08-11011 August 1999 PNO-IV-99-035:on 990810,operators Initiated Manual Rt When High Pressure Heater Drain Line Ruptured in Turbine Bldg. Licensee Is Evaluating Options for Facilitating Repair & Restarting Plant.Region IV Will Conduct Special Insp IR 05000483/19990051999-06-25025 June 1999 Insp Rept 50-483/99-05 on 990502-0612.Two Violations Noted & Being Treated as Noncited Violations.Major Areas Inspected: Operations,Maint,Engineering & Plant Support IR 05000483/19990031999-05-19019 May 1999 Insp Rept 50-483/99-03 on 990321-0501.Noncited Violation Noted.Major Areas Inspected:Operations,Maintenance, Engineering & Plant Support IR 05000483/19993021999-05-0303 May 1999 Exam Rept 50-483/99-302 on 990416.Exam Results:Ro License Applicant Passed Retake Written Exam & Test Matl Adequate IR 05000483/19990011999-04-0505 April 1999 Insp Rept 50-483/99-01 on 990207-0320.One Violation Occurred & Being Treated as Noncited Violation.Major Areas Inspected: Operations,Maint,Engineering & Plant Support IR 05000483/19993011999-02-0202 February 1999 NRC Operator Licensing Exam Rept 50-483/99-301 for Exams Administered on 990111-15 ML20199D9261999-01-12012 January 1999 Notice of Violation from Insp on 981115-1226.Violation Noted:Licensee Failed to Perform Written Safety Evaluation, from 840611-980505 IR 05000483/19980181998-12-0404 December 1998 Insp Rept 50-483/98-18 on 980914-1002.Violations Noted. Major Areas Inspected:Review of Design & Licensing Basis for Essential Service Water Sys,Associated Electrical Support Sys & Review of Program Implement 10CFR50.59 ML20198A1231998-12-0404 December 1998 Notice of Violation from Insp on 980914-1002.Violation Noted:Listed Activities Affecting Quality Either Not Prescribed by Documented Instructions Appropriate to Circumstances or Not Accomplished with Procedures PNO-IV-98-059, on 981129,licensee Commenced Plant Shutdown from 100% Power to Mode 3 to Replace Fan Motor.Resident Inspector Monitored Portion of Plant Shutdown from Cr.Info Has Been Discussed with Licensee1998-11-30030 November 1998 PNO-IV-98-059:on 981129,licensee Commenced Plant Shutdown from 100% Power to Mode 3 to Replace Fan Motor.Resident Inspector Monitored Portion of Plant Shutdown from Cr.Info Has Been Discussed with Licensee IR 05000483/19980241998-11-25025 November 1998 Insp Rept 50-483/98-24 on 981026-30.Violation Noted.Major Areas Inspected:Licensee Implementation of NRC Approved Fire Protection Program ML20196G3471998-11-25025 November 1998 Notice of Violation from Insp on 981026-30.Violation Noted: on 981030,control Room Pantry Fire Door,Identified as Being Nonfunctional Without Fire Barrier Impairment Permit or Conpensatory Actions,As Required by Procedure APA-ZZ-00701 IR 05000483/19980221998-11-25025 November 1998 Insp Rept 50-483/98-22 on 980927-1114.No Violations Noted. Major Areas Inspected:Operations,Maintenance,Engineering & Plant Support IR 05000483/19980231998-10-28028 October 1998 Insp Rept 50-483/98-23 on 981013-15.No Violations Noted. Major Areas Inspected:Operational Status of License Emergency Preparedness Program Was Conducted IR 05000483/19980151998-10-26026 October 1998 Insp Rept 50-483/98-15 on 980706-10.No Violations Noted. Major Areas Inspected:Guidance of Temporary Instruction 2515/137, Insp of Medium-Voltage & Low-Voltage Power Circuit Breakers IR 05000483/19980201998-10-15015 October 1998 Insp Rept 50-483/98-20 on 980817-0904.No Violations Noted. Major Areas Inspected:Operations & Maint IR 05000483/19980211998-10-0909 October 1998 Insp Rept 50-483/98-21 on 980816-0926.No Violations Noted. Major Areas Inspected:Operations,Maint & Engineering IR 05000483/19980191998-09-29029 September 1998 Insp Rept 50-483/98-19 on 980914-18.No Violations Noted. Major Areas Inspected:Plant Support IR 05000483/19980121998-08-21021 August 1998 Insp Rept 50-483/98-12 on 980705-0815.No Violations Noted. Major Areas Inspected:Operations,Maint & Plant Support ML20237B8931998-08-14014 August 1998 Notice of Violation from Insp on 980803-07.Violation Noted: on 980804,inspector Noted Three Containers of Dry Active Waste Stored within 10 Feet of Permanent Structure IR 05000483/19980171998-08-14014 August 1998 Insp Rept 50-483/98-17 on 980803-07.Violations Noted.Major Areas Inspected:Implementation of Solid Radioactive Waste Mgt & Radioactive Matls Transportation Program IR 05000483/19980161998-08-0606 August 1998 Insp Rept 50-483/98-16 on 980713-17.No Violations Noted. Major Areas Inspected:Plant Support IR 05000483/19980131998-07-29029 July 1998 Insp Rept 50-483/98-13 on 980714-17.Violation Noted.Major Areas Inspected:Engineering & Plant Support ML20236V3251998-07-29029 July 1998 Notice of Violation from Insp on 980714-17.Violation Noted: Grinding Needle Gun Work Performed on 2,000 Ft Elevation of Cb Liner Floor Plate W/O Performing Surveys to Evaluate Concentration or Quantities of Radioactive Matl IR 05000483/19980141998-07-17017 July 1998 Insp Rept 50-483/98-14 on 980629-0702.No Violations Noted. Major Areas Inspected:Operational Status of Licensee Emergency Preparedness Program IR 05000483/19980111998-07-0808 July 1998 Insp Rept 50-483/98-11 on 980524-0704.No Violations Noted. Major Areas Inspected:Operations,Maint,Engineering & Plant Support ML20248L2621998-06-0808 June 1998 Notice of Violation from Insp on 980412-0523.Violation Noted:On 980419,workman Protection Assurance 26226 Was Inadequate to Ensure Safety During Work on Valve EJHV8804A IR 05000483/19980081998-06-0808 June 1998 Insp Rept 50-483/98-08 on 980412-0523.Violations Noted. Major Areas Inspected:Operation,Maint,Engineering & Plant Support IR 05000483/19980071998-05-19019 May 1998 Insp Rept 50-483/98-07 on 980427-0501.Violations Noted.Major Areas Inspected:Radiation Protection Program Focussing on Refueling Outage Activities ML20247M2241998-05-19019 May 1998 Insp Rept 50-483/98-10 on 980428-30.No Violations Noted. Major Areas Inspected:Contingency Plan Developed in Response to Insp Findings in NRC Insp Rept 50-483/98-06 W/Special Emphasis on Training Process Used to Qualify People for Er IR 05000483/19980091998-05-19019 May 1998 Insp Rept 50-483/98-09 on 980428-30.No Violations Noted. Major Areas Inspected:Maint & Plant Support IR 05000483/19980051998-05-0808 May 1998 Insp Rept 50-483/98-05 on 980413-0501.No Violations Noted. Major Areas Inspected:Maintenance,Engineering & Plant Support ML20217F4491998-04-22022 April 1998 Notice of Violation from Insp on 980324-26.Violations Noted: on 970529,licensee Made Changes to Emergency Plan W/O Commission Approval,That Decreased Effectiveness of Plan & Did Not Continue to Meet Planning Standard 50.47(b)(2) ML20217F4881998-04-22022 April 1998 Insp Rept 50-483/98-06 on 980324-26.Violations Noted.Major Areas Inspected:Plant Support IR 05000483/19980031998-04-17017 April 1998 Insp Rept 50-483/98-03 on 980301-0411.No Violations Noted. Major Areas Inspected:Operations,Maint & Engineering IR 05000483/19980041998-04-17017 April 1998 Insp Rept 50-483/98-04 on 980406-10.No Violations Noted. Major Areas Inspected:Licensee Physical Security Program ML20217F1921998-03-26026 March 1998 Notice of Violation from Insp on 980202-06.Violation Noted: Licensee Did Not Demonstrate That Either Train of Auxiliary Fuel Bldg Emergency Filter Sys Adsorbers Could Comply W/Ts 4.7.7.b.2 Until Charcoal from Each Train Was Replaced IR 05000483/19980021998-03-26026 March 1998 Insp Rept 50-483/98-02 on 980202-06.Violation Noted.Major Areas Inspected:Maint,Engineering Re Bldg Emergency Filter Sys Adsorber ML20216A7971998-03-0909 March 1998 Notice of Violation from Insp on 980118-0228.Violation Noted:On 980216,instructions to Work Authorization C612323 Did Not Provide Adequate Guidance for Concrete Core Drilling Work,As Result,Licensee Personnel Drilled Into Power Cable IR 05000483/19980011998-03-0909 March 1998 Insp Rept 50-483/98-01 on 980118-0228.Violations Noted. Major Areas Inspected:Operations,Engineering & Plant Support IR 05000483/19970211998-01-27027 January 1998 Insp Rept 50-483/97-21 on 971207-980117.No Violations Noted. Major Areas Inspected:Operation,Maint,Engineering & Plant Support IR 05000483/19980251998-01-12012 January 1998 Insp Rept 50-483/98-25 on 981115-1226.Violations Noted. Major Areas Inspected:Operations,Maint,Engineering & Plant Support,Including Health Physics & Security IR 05000483/19970191997-12-18018 December 1997 Insp Rept 50-483/97-19 on 971117-1211.No Violations Noted. Major Areas Inspected:Engineering IR 07100026/20120061997-12-16016 December 1997 Notice of Violation from Insp on 971026-1206.Violation Noted:Licensee Personnel Failed to Follow Documented Instructions During Preventive Maint Task to Record Differential Pressure Across Essential Svc Water Supply 1999-09-22 |
T PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE--PNO-III-86-60 Date June 23, 1986 This preliminary notification constitutes EARLY notice of events of POSSIBLE safety or public interest significance. The information is as initially received without b
verification or evaluation, and is basically all that is known by the Region III staff on this date.
Facility: Union Electric Company Licensee Emergency Classification:
Callaway Nuclear Plant Notification of an Unusual Event Steedman, M0 65077 Alert Site Area Emergency General Emergency Docket No: 50-483 XX Not Applicable
Subject:
REACTOR TRIP--CLOSURE OF FEEDWATER ISOLATION VALVE The reactor tripped at 4:46 a.m. (CDT), June 21, 1986, on a low / low water level signal from the D steam generator. The low / low water level resulted from the closing of a feedwater isolation valve. The valve closure-was attributed to a failure in a control logic card.
The unit is expected to resume operations on June 24, 1986.
The State of Missouri will be informed.
Region III (Chicago) was notified of the reactor trip by the Headquarters Duty Officer about 7:15 a.m., June 21, 1986. This information is current as of 10 a.m. , June 23, 1986.
CONTACT: W. R. ick FTS 388-5590 FTS 388-5575 DISTRIBUTION:
H. St. ED0 NRR E/W Willste Mail: ADM:DMB Chairman Palladino PA IE NMSS DOT:Trans only Comm. Zech ELD OIA RES Comm. Bernthal AE0D Comm. Roberts Comm. Asselstine SP /,?.'t// Regional Offices ACRS SECY INP0 M8/ NSAC /3/
CA RIII Resident Qffice PDR Licensee: /,"O [ (Corp. Office - Reactor Lic. Only) 606270 y e60623 Region III u6 Rev. November 1985 l e%-111-06-060pga O/I