PNO-II-93-051, on 930928,ongoing Investigation of 10 Jet Pump Revealed Probable Loose or Displaced Mixer.General Electric Review of Data Verified Results & Recommended Jet Pump 10 Be Declared Inoperable
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| ML20057E328 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 09/28/1993 |
| From: | Cantrell F NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| References | |
| PNO-II-93-051, PNO-II-93-51, NUDOCS 9310120028 | |
| Download: ML20057E328 (1) | |
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Category:PRELIMINARY NOTIFICATION OF EVENT OR OCCURRENCE (PNO
MONTHYEARPNO-IV-99-005, on 990113,Grand Gulf Operators Commenced Unit Shutdown,From 100 Percent Power,Due to One or More Apparently Degraded Current Transformers Located in Safety Related Div I,4.16 Kv Switchgear.State of Ms Informed1999-01-13013 January 1999
[Table view]PNO-IV-99-005:on 990113,Grand Gulf Operators Commenced Unit Shutdown,From 100 Percent Power,Due to One or More Apparently Degraded Current Transformers Located in Safety Related Div I,4.16 Kv Switchgear.State of Ms Informed PNO-II-93-051, on 930928,ongoing Investigation of 10 Jet Pump Revealed Probable Loose or Displaced Mixer.General Electric Review of Data Verified Results & Recommended Jet Pump 10 Be Declared Inoperable1993-09-28028 September 1993 PNO-II-93-051:on 930928,ongoing Investigation of 10 Jet Pump Revealed Probable Loose or Displaced Mixer.General Electric Review of Data Verified Results & Recommended Jet Pump 10 Be Declared Inoperable PNO-II-93-046, on 930913,reactor Experienced Spurious Low Reactor Water Level Signal & High Pressure Core Spray Pump Started Causing High Water Level Scram.Licensee Planned Actions in Response to NRC Bulletin 93-03 Discussed1993-09-14014 September 1993 PNO-II-93-046:on 930913,reactor Experienced Spurious Low Reactor Water Level Signal & High Pressure Core Spray Pump Started Causing High Water Level Scram.Licensee Planned Actions in Response to NRC Bulletin 93-03 Discussed PNO-II-91-014, on 910329,as Result of Severe Weather & Heavy Rains,Bridge Located on Highway 61 Approx 7-8 Miles North of Grand Gulf Was Washed Out.State of Mississippi Have Been Notified1991-03-29029 March 1991 PNO-II-91-014:on 910329,as Result of Severe Weather & Heavy Rains,Bridge Located on Highway 61 Approx 7-8 Miles North of Grand Gulf Was Washed Out.State of Mississippi Have Been Notified PNO-II-89-058, on 890814,reactor Tripped from 93% on Turbine Trip.Caused by Loss of Condenser Vacuum as Result of Ruptured Seal Between Condenser & Turbine.Investigations Underway.Licensee Estimate of 5-day Outage Noted1989-08-15015 August 1989 PNO-II-89-058:on 890814,reactor Tripped from 93% on Turbine Trip.Caused by Loss of Condenser Vacuum as Result of Ruptured Seal Between Condenser & Turbine.Investigations Underway.Licensee Estimate of 5-day Outage Noted PNO-II-89-042, on 890602,util Notified That Decision Made to Cancel Unit 2.Util Will Not Request Cancellation of CP Until Approval Received from PSC of Arkansas,Mississippi,Louisiana & City of New Orleans1989-06-0202 June 1989 PNO-II-89-042:on 890602,util Notified That Decision Made to Cancel Unit 2.Util Will Not Request Cancellation of CP Until Approval Received from PSC of Arkansas,Mississippi,Louisiana & City of New Orleans PNO-II-89-035, on 890511,B Recirc Pump Experienced High Vibrations.Control Rods Were Inserted to Reduce Power & Recirc Pumps Were Shifted to Slow Speed1989-05-16016 May 1989 PNO-II-89-035:on 890511,B Recirc Pump Experienced High Vibrations.Control Rods Were Inserted to Reduce Power & Recirc Pumps Were Shifted to Slow Speed PNO-II-88-069, on 881129,spurious Actuation of 19 Out of 30 Alert & Notification Sirens Occurred.Preliminary Info Indicated That Spurious False Activation Caused by Old Activation Sys Decommissioned Later on Same Day1988-11-30030 November 1988 PNO-II-88-069:on 881129,spurious Actuation of 19 Out of 30 Alert & Notification Sirens Occurred.Preliminary Info Indicated That Spurious False Activation Caused by Old Activation Sys Decommissioned Later on Same Day PNO-IV-88-040, on 880509,System Energy Resources,Inc to Manage & Operate All Middle South Nuclear Plants.Arkansas Power & Light & Louisiana Power & Light Will Apply for Appropriate License Amends1988-05-0909 May 1988 PNO-IV-88-040:on 880509,System Energy Resources,Inc to Manage & Operate All Middle South Nuclear Plants.Arkansas Power & Light & Louisiana Power & Light Will Apply for Appropriate License Amends PNO-II-86-060, on 860828,unscheduled Shutdown Which Began on 860825 to Correct Inadequate Cooling Water Flow to Several Room Coolers,Exceeded 48 H.Condition Found When Tests Performed After Review of Standby Svc Water Sys Mod1986-08-28028 August 1986 PNO-II-86-060:on 860828,unscheduled Shutdown Which Began on 860825 to Correct Inadequate Cooling Water Flow to Several Room Coolers,Exceeded 48 H.Condition Found When Tests Performed After Review of Standby Svc Water Sys Mod PNO-II-86-027, on 860407,reactor Manually Scrammed After Safety Relief Valves Opened & Could Not Be Closed within 2 Minutes,Per Tech Specs.Valves Closed After Scram.Util Will Keep Unit Shut Down to Repair Recirculation Pump Seals1986-04-0909 April 1986 PNO-II-86-027:on 860407,reactor Manually Scrammed After Safety Relief Valves Opened & Could Not Be Closed within 2 Minutes,Per Tech Specs.Valves Closed After Scram.Util Will Keep Unit Shut Down to Repair Recirculation Pump Seals PNO-II-86-015, on 860212,unusual Event Declared After RCS Leakage Increased to 5.9 Gpm.Reactor Tripped from 11% Power on Low Reactor Water Level Following Opening of Condensate Booster Pump Recirculation Valve1986-02-13013 February 1986 PNO-II-86-015:on 860212,unusual Event Declared After RCS Leakage Increased to 5.9 Gpm.Reactor Tripped from 11% Power on Low Reactor Water Level Following Opening of Condensate Booster Pump Recirculation Valve PNO-II-85-108, on 851107,emergency Diesel Generator Overspeed Occurred.Util & Tdi Disassembling & Inspecting for Damage. Cause Under Review.Link Pin Bushing & Main Bearing Cracked1985-11-12012 November 1985 PNO-II-85-108:on 851107,emergency Diesel Generator Overspeed Occurred.Util & Tdi Disassembling & Inspecting for Damage. Cause Under Review.Link Pin Bushing & Main Bearing Cracked PNO-II-85-106, on 851105,design Engineer Fell Approx 40 Ft Inside Cooling Tower.Victim Transferred to Hosp1985-11-0707 November 1985 PNO-II-85-106:on 851105,design Engineer Fell Approx 40 Ft Inside Cooling Tower.Victim Transferred to Hosp PNO-II-85-102, crack-like Indications Discovered on Surface of Cross Assembly Which Ties 24-inch Discharge Piping of Recirculation Pump to Jet Pump 16-inch Ring Supply Header. Util & Nutech Performing Evaluation1985-10-31031 October 1985 PNO-II-85-102:crack-like Indications Discovered on Surface of Cross Assembly Which Ties 24-inch Discharge Piping of Recirculation Pump to Jet Pump 16-inch Ring Supply Header. Util & Nutech Performing Evaluation PNO-II-85-086A, on 850830,Hurricane Elena Located Near Latitude 28.0 North & Longitude 87.5 West,Approx 160 Miles South of Pensacola,Fl.Utils Aware of Location & Prepared to Implement Appropriate Procedures1985-08-30030 August 1985 PNO-II-85-086A:on 850830,Hurricane Elena Located Near Latitude 28.0 North & Longitude 87.5 West,Approx 160 Miles South of Pensacola,Fl.Utils Aware of Location & Prepared to Implement Appropriate Procedures PNO-II-85-086, on 850826,Natl Weather Svc Upgraded Tropical Storm Elena to Hurricane.Utils Contacted Re Implementation of Hurricane Procedures1985-08-29029 August 1985 PNO-II-85-086:on 850826,Natl Weather Svc Upgraded Tropical Storm Elena to Hurricane.Utils Contacted Re Implementation of Hurricane Procedures PNO-II-85-064, on 850701,demonstrators Protested Impact of Plant Const Cost on Util Rates.Security at All Site Entrances Increased.Traffic in & Out of Plant & Plant Operation Unaffected1985-07-0101 July 1985 PNO-II-85-064:on 850701,demonstrators Protested Impact of Plant Const Cost on Util Rates.Security at All Site Entrances Increased.Traffic in & Out of Plant & Plant Operation Unaffected PNO-II-85-062, on 850618,licensee Investigated Alleged Offsite Drug Use by Nonsupervisory Members of Contract Guard Force.Urinalysis Tests on 15 Samples Showed Negative Results in All But Three Samples.Investigation Continuing1985-06-18018 June 1985 PNO-II-85-062:on 850618,licensee Investigated Alleged Offsite Drug Use by Nonsupervisory Members of Contract Guard Force.Urinalysis Tests on 15 Samples Showed Negative Results in All But Three Samples.Investigation Continuing PNO-II-84-061, on 840916,plant,Unit 1 Shut Down Due to Steam Leak Inside Turbine Bldg.Region II Dispatched Insp & Failed Assembly Being Sent off-site for Independent Verification1984-09-21021 September 1984 PNO-II-84-061:on 840916,plant,Unit 1 Shut Down Due to Steam Leak Inside Turbine Bldg.Region II Dispatched Insp & Failed Assembly Being Sent off-site for Independent Verification PNO-II-82-074, on 820701,licensee Began Fuel Loading.Sixth Fuel Assembly Loaded on 820702.Fuel Loading Operation Expected to Take 4 Wks.News Release Issued.State of Ms Notified1982-07-0202 July 1982 PNO-II-82-074:on 820701,licensee Began Fuel Loading.Sixth Fuel Assembly Loaded on 820702.Fuel Loading Operation Expected to Take 4 Wks.News Release Issued.State of Ms Notified PNO-II-80-157, insp Indicated Questionable Fire Damper Installation Integrity in HVAC Sys for Control Room & Other safety-related Areas.Welding Instructions Inadequate.Item Generic.Stop Work Order Issued1980-11-0303 November 1980 PNO-II-80-157:insp Indicated Questionable Fire Damper Installation Integrity in HVAC Sys for Control Room & Other safety-related Areas.Welding Instructions Inadequate.Item Generic.Stop Work Order Issued PNO-II-80-044, on 800319,site Ambulance,En Route to Hosp W/Laborer,Heart Attack Victim,Involved in Accident.Three of Four Occupants Killed.Status of Laborer Unknown1980-03-19019 March 1980 PNO-II-80-044:on 800319,site Ambulance,En Route to Hosp W/Laborer,Heart Attack Victim,Involved in Accident.Three of Four Occupants Killed.Status of Laborer Unknown ML20248H9741978-04-18018 April 1978 PNO-78-085:on 780417,high Winds,Not Classified as Tornado by Weather Bureau,Caused Extensive Damage at Grand Gulf Nuclear Site.Several Cranes Fell Damaging Partially Erected Cooling Tower & Containment Liner ML20249A8761977-10-0303 October 1977 PNS-77-037:on 770930,anonymous Telephone Call Was Received at Construction Contractor (Bechtel) Switchboard Re Bomb Threat in Reactor Room.No Explosives Were Found & Site Was Not Evacuated.State of Ms Informed 1999-01-13 Category:TEXT-INSPECTION & AUDIT & I&E CIRCULARS MONTHYEARIR 05000416/19990121999-09-29029 September 1999
[Table view]Insp Rept 50-416/99-12 on 990725-0904.Violations Noted.Major Areas Inspected:Licensee Operations,Maint,Engineering & Plant Support IR 05000416/19990111999-09-28028 September 1999 Insp Rept 50-416/99-11 on 990830-0903.No Violations Noted. Major Areas Inspected:Solid Radioactive Waste Management Program,Radioactive Matl Transportation Program,Facilities & Equipment,Staff Knowledge & Performance & Staff Training IR 05000416/19990141999-09-27027 September 1999 Insp Rept 50-416/99-14 on 990830-0903.No Violations Noted. Major Areas Inspected:Implementation of Liquid & Gaseous Radioactive Waste Effluent Mgt Program & Status of Effluent Radiation Monitors & Counting Room Instruments IR 05000416/19990151999-09-13013 September 1999 Partially Withheld Insp Rept 50-416/99-15 on 990816-20. Noncited Violation Noted.Major Areas Inspected:Licensee Physical Security Program,Personnel Access Control,Access Authorization & Protected Area Detection Aids IR 05000416/19990101999-08-24024 August 1999 Insp Rept 50-416/99-10 on 990809-13.No Violations Noted. Major Areas Inspected:Licensed Operator Requalification Program IR 05000416/19990091999-08-0909 August 1999 Insp Rept 50-416/99-09 on 990613-0724.No Violations Noted. Major Areas Inspected:Licensee Operations,Maint,Engineering & Plant Support IR 05000416/19990031999-07-30030 July 1999 Insp Rept 50-416/99-03 on 990405-08 & 0510-11.No Violations Identified.Major Areas Inspected:Corrective Action Program Implementation IR 05000416/19990071999-07-23023 July 1999 Insp Rept 50-416/99-07 on 990622-25.Violations Noted.Major Areas Inspected:Announced Insp of Licensee Performance & Capabilities During full-scale,biennial Exercise of Emergency Plan & Implementing Procedures Performed IR 05000416/19990081999-07-15015 July 1999 Insp Rept 50-416/99-08 on 990502-0612.Violations Noted.Major Areas Inspected:Licensee Operations,Maint,Engineering & Plant Support IR 05000416/19990051999-06-27027 June 1999 Insp Rept 50-416/99-05 on 990321-0501.Violations Identified, Being Treated as non-cited Violations.Major Areas Inspected: Aspects of Licensee Operations,Maint,Engineering & Plant Support IR 05000416/19990061999-05-21021 May 1999 Insp Rept 50-416/99-06 on 990419-23.No Violations Noted. Major Areas Inspected:Licensee Implementation of NRC Approved Fire Protection Program ML20206U3981999-05-18018 May 1999 Insp Rept 50-416/99-02 on 990222-26 & 0308-12.Non-cited Violations Noted.Major Areas Inspected:Engineering IR 05000416/19990041999-04-23023 April 1999 Insp Rept 50-416/99-04 on 990131-0320.Violations Noted. Major Areas Inspected:Operation,Maintenance,Engineering & Plant Support ML20207E0881999-02-26026 February 1999 Notice of Violation from Insp on 990201-05.Violation Noted: on 990201,NRC Inspectors Identified That Area with Dose Rates Greater than 1000 M/H Not Provided with Locked or Continously Guarded Doors to Prevent Unauthorized Entry IR 05000416/19990011999-02-26026 February 1999 Insp Rept 50-416/99-01 on 990201-05.Violations Noted. Major Areas Inspected:Plant Support.Violation of TS 5.7.2 Identified for Failure to Control Locked High Radiation Area Around Spent Fuel Pool Cooling & Cleanup HX IR 05000416/19980151999-01-20020 January 1999 Insp Rept 50-416/98-15 on 981101-1212.No Violations Noted. Major Areas Inspected:Licensee Operations,Maint,Engineering & Plant Suuport PNO-IV-99-005, on 990113,Grand Gulf Operators Commenced Unit Shutdown,From 100 Percent Power,Due to One or More Apparently Degraded Current Transformers Located in Safety Related Div I,4.16 Kv Switchgear.State of Ms Informed1999-01-13013 January 1999 PNO-IV-99-005:on 990113,Grand Gulf Operators Commenced Unit Shutdown,From 100 Percent Power,Due to One or More Apparently Degraded Current Transformers Located in Safety Related Div I,4.16 Kv Switchgear.State of Ms Informed IR 05000416/19980161998-12-24024 December 1998 Insp Rept 50-416/98-16 on 981207-11.Violations Noted.Major Areas Inspected:Operational Status of Licensee Emergency Preparedness Program Was Conducted ML20198L7711998-12-24024 December 1998 Notice of Violation from Insp on 981207-11.Violation Noted: on 950630,licensee Made Change to Emergency Plan Without Commission Approval ML20196F1271998-12-0101 December 1998 Insp Rept 50-416/98-13 on 980920-1031.Violations Noted.Major Areas Inspected:Operations,Maint,Engineering & Plant Support ML20196F1141998-12-0101 December 1998 Notice of Violation from Insp on 980920-1031.Violation Noted:From 980521 Through 981015,conditions Adverse to Quality Identified in Condition Rept 1998-0014 Not Promptly Corrected IR 05000416/19980141998-11-27027 November 1998 Insp Rept 50-416/98-14 on 981026-30.No Violations Noted. Major Areas Inspected:Exposure Controls,Controls of Radioactive Matls & Contamination,Surveying & Monitoring & Quality Assurance Oversight of Radiation Protection Program IR 05000416/19980111998-10-14014 October 1998 Insp Rept 50-416/98-11 on 980809-0919.No Violations Noted. Major Areas Inspected:Operations,Maint,Engineering & Plant Support IR 05000416/19980121998-09-15015 September 1998 Insp Rept 50-416/98-12 on 980817-20.No Violations Noted. Major Areas Inspected:Training,Qualifications,Quality Assurance Oversight,Facilities & Equipment & Annual Reports IR 05000416/19980031998-09-0909 September 1998 Insp Rept 50-416/98-03 Cancelled IR 05000416/19980091998-08-31031 August 1998 Insp Rept 50-416/98-09 on 980628-0808.No Violations Noted. Major Areas Inspected:Operations,Maint,Engineering & Plant Support IR 05000416/19980101998-08-26026 August 1998 Insp Rept 50-416/98-10 on 980803-07.No Violations Noted. Major Areas Inspected:Licensee Physical Security Program IR 05000416/19980081998-07-14014 July 1998 Insp Rept 50-416/98-08 on 980517-0627.No Violations Noted. Major Areas Inspected:Operations,Maint,Engineering & Plant Support IR 05000416/19980071998-06-0202 June 1998 Insp Rept 50-416/98-07 on 980518-21.No Violations Noted. Major Areas Inspected:Access Authorization,Alarm Stations, Communications,Access Control of Packages & Vehicles, Assessment Aids & Mgt Support ML20248E7501998-05-28028 May 1998 Notice of Violation from Insp on 980405-0516.Violation Noted:On 980421,inspectors Found Back Doors on Diesel Generator Control Cabinet 1H22-p400 in Div 1 Standby Diesel Generator Room Standing Wide Open & Unattended IR 05000416/19980051998-05-28028 May 1998 Insp Rept 50-416/98-05 on 980405-0516.Violations Noted.Major Areas Inspected:Licensee Operations,Maint,Engineering & Plant Support IR 05000416/19980061998-05-19019 May 1998 Insp Rept 50-416/98-06 on 980427-0501.No Violations Noted. Major Areas Inspected:Radiation Protection Activities in Support of 1998 Refueling Outage IR 05000416/19980041998-05-0505 May 1998 Insp Rept 50-416/98-04 on 980414-16.No Violations Noted. Major Areas Inspected:Maint & Plant Support ML20217F7631998-04-16016 April 1998 Insp Rept 50-416/98-301 on 980330-0403.No Violations Noted. Major Areas Inspected:Competency of Reactor Operator & Eight Senior Applicants for Issuance of OLs at Grand Gulf Nuclear Station IR 05000416/19980021998-04-15015 April 1998 Insp Rept 50-416/98-02 on 980222-0404.No Violations Noted. Major Areas Inspected:Operations,Maint,Engineering & Plant Support IR 05000416/19980011998-03-0404 March 1998 Insp Rept 50-416/98-01 on 980111-0221.No Violations Noted. Major Areas Inspected:Operations,Maintenance,Engineering & Plant Support IR 05000416/19970221997-12-15015 December 1997 Insp Rept 50-416/97-22 on 971130-980110.No Violations Noted. Major Areas Inspected:Operations,Maint,Engineering ML20203D5581997-12-0505 December 1997 Insp Rept 50-416/97-21 on 971019-1129.Violations Noted. Major Areas Inspected:Operations,Maint,Engineering & Plant Support IR 07100019/20110291997-12-0505 December 1997 Notice of Violation from Insp on 971019-1129.Violations Noted:Scaffold 08-779 Was Assembled to Contain Insulation on Small Gauge Pipe Just Down Stream of Containment Atmosphere Sample Inlet Valve 1P33F572A ML20199L9411997-11-25025 November 1997 Notice of Violation from Insp on 970804-22.Violation Noted: on or About Period of 970117-29,approved FP Program as Described in UFSAR Was Not Fully Implemented.Emergency Light 1T92S222A Was Not Capable of Performing Function IR 05000416/19970181997-11-25025 November 1997 Insp Rept 50-416/97-18 on 970804-22.Violations Noted.Major Areas Inspected:Operations & Maint.Nrc IP 40500 Used to Evaluate Licensee Effectiveness in Identifying,Resolving & Preventing Issues That Degrade Quality of Plant Operations IR 05000416/19970201997-10-31031 October 1997 Insp Rept 50-416/97-20 on 970907-1018.Violations Noted.Major Areas Inspected:Operations,Maint & Plant Support Re Emergency Post Accident Sampling Sys Drill ML20198Q0291997-10-31031 October 1997 Notice of Violation from Insp on 970907-1018.Violation Noted:As of 971011,security Patrols Had Not Reported Dark Areas in Temporary Covered Maint Work Area in Protected Area IR 05000416/19970161997-10-23023 October 1997 Insp Rept 50-416/97-16 on 970929-1003.No Violations Noted. Major Areas Inspected:Review of Licensed Operator Requalification Program Following Guidelines in IP 71001 IR 05000416/19970151997-10-0909 October 1997 Insp Rept 50-416/97-15 on 970916-19.Three Weaknesses Noted During Exercise.Major Areas Inspected:Licensee Performance & Capabilities During full-scale,biennial Exercise of Emergency Plan & Implementing Procedures IR 05000416/19970991997-10-0909 October 1997 SALP Rept 50-416/97-99 for 960225-970906 IR 05000416/19970071997-10-0101 October 1997 Informs That Insp Rept 50-416/97-07 Has Been Cancelled & There Will Be No Insp Issued for This Rept Number ML20216J2081997-09-12012 September 1997 Notice of Violation from Insp on 970803-0906.Violation Noted:As of 970811,duplex Filter Selection Levers for HPCS & Div 1 Standby DGs Were in Both Position Such That Two Strainers/Filters Were Selected IR 05000416/19970191997-09-12012 September 1997 Insp Rept 50-416/97-19 on 970803-0906.Violations Noted. Major Areas Inspected:Operations,Maint,Engineering & Plant Support IR 05000416/19970171997-09-0505 September 1997 Insp Rept 50-416/97-17 on 970804-08.No Violation Noted.Major Areas Inspected:Implementation of Solid Radwaste Mgt & Radioactive Matls Transportation Programs 1999-09-29 |