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Category:MONTHLY OPERATING ANALYSIS REPORT
MONTHYEARML20217D6851999-09-30030 September 1999 Monthly Operating Repts for Sept 1999 for North Anna Power Station,Units 1 & 2.With ML20216E5011999-08-31031 August 1999 Monthly Operating Repts for Aug 1999 for Naps,Units 1 & 2. with ML20210S1411999-07-31031 July 1999 Monthly Operating Repts for July 1999 for North Anna Power Station.With ML20209E5641999-06-30030 June 1999 Monthly Operating Repts for June 1999 for North Anna Power Stations,Units 1 & 2.With ML20195G1901999-05-31031 May 1999 Monthly Operating Rept for May 1999 for NAPS Units 1 & 2. with ML20206Q6671999-04-30030 April 1999 Monthly Operating Repts for Apr 1999 for North Anna Power Station,Units 1 & 2.With ML20205K3041999-03-31031 March 1999 Monthly Operating Repts for Mar 1999 for North Anna Power Station,Units 1 & 2.With ML20207K5921999-02-28028 February 1999 Monthly Operating Repts for Feb 1999 for North Anna Power Station,Units 1 & 2.With ML20199C8781998-12-31031 December 1998 Monthly Operating Repts for Dec 1998 for North Anna Power Station,Units 1 & 2.With ML20197G8551998-11-30030 November 1998 Monthly Operating Repts for Nov 1998 for North Anna Power Station,Units 1 & 2.With ML20195D0571998-10-31031 October 1998 Monthly Operating Repts for Oct 1998 for North Anna Power Station,Units 1 & 2.With ML20154H4001998-09-30030 September 1998 Monthly Operating Repts for Sept 1998 for North Anna Power Station,Units 1 & 2.With ML20151W4711998-08-31031 August 1998 Monthly Operating Repts for Aug 1998 for North Anna Power Station Units 1 & 2.With ML20237A4341998-07-31031 July 1998 Monthly Operating Repts for July 1998 for North Anna Power Station,Units 1 & 2 ML20236M3381998-06-30030 June 1998 Monthly Operating Repts for June 1998 for North Anna Power Station,Units 1 & 2 ML20248M1011998-05-31031 May 1998 Monthly Operating Repts for May 1998 for North Anna Power Station,Units 1 & 2 ML20247F4441998-04-30030 April 1998 Monthly Operating Repts for Apr 1998 for North Anna Power Station,Units 1 & 2 ML20216B1891998-03-31031 March 1998 Monthly Operating Repts for Mar 1998 for North Anna Power Station,Units 1 & 2 ML20216E2561998-02-28028 February 1998 Monthly Operating Repts for Feb 1998 for North Anna Power Station,Units 1 & 2 ML20202D5811998-01-31031 January 1998 Monthly Operating Repts for Jan 1998 for North Anna Power Station,Units 1 & 2 ML20198P1351997-12-31031 December 1997 Monthly Operating Repts for Dec 1997 for North Anna Power Station,Units 1 & 2 ML20203F3531997-11-30030 November 1997 Monthly Operating Repts for Nov 1997 for North Anna Power Station,Units 1 & 2 ML20199C6871997-10-31031 October 1997 Monthly Operating Repts for Oct 1997 for North Anna Power Station,Units 1 & 2 ML20217H9201997-09-30030 September 1997 Monthly Operating Repts for Sept 1997 for North Anna Power Station,Units 1 & 2 ML20216H9141997-08-31031 August 1997 Monthly Operating Repts for Aug 1997 for North Anna Power Station,Units 1 & 2 ML20210K5501997-07-31031 July 1997 Monthly Operating Repts for Jul 1997 for North Anna Power Station,Units 1 & 2 ML20210K5581997-06-30030 June 1997 Revised Monthly Operating Rept for June 1997 for North Anna Power Station,Units 1,correcting Error Found on Shutdowns & Power Reductions Summary ML20140E5371997-05-31031 May 1997 Monthly Operating Repts for May 1997 for North Anna Power Station Units 1 & 2 ML20148B3771997-04-30030 April 1997 Monthly Operating Repts for Apr 1997 for North Anna Power Station Units 1 & 2 ML20141E2681997-04-30030 April 1997 Monthly Operating Repts for Apr 1997 for North Anna Power Station Units 1 & 2 ML20140D7551997-03-31031 March 1997 Monthly Operating Repts for North Anna Power Station,Units 1 & 2 ML20135F3111997-02-28028 February 1997 Monthly Operating Repts for Feb 1997 for North Anna Power Station,Units 1 & 2 ML20134H2961997-01-31031 January 1997 Monthly Operating Repts for Jan 1997 for North Anna Power Station Units 1 & 2 ML20133G5291996-12-31031 December 1996 Monthly Operating Repts for Dec 1996 for North Anna Power Station Units 1 & 2 ML20135E4961996-11-30030 November 1996 Monthly Operating Repts for Nov 1996 for North Anna Power Station Units 1 & 2 ML20134K5811996-10-31031 October 1996 Monthly Operating Repts for Oct 1996 for North Anna Power Station Unit 1 & 2 ML20128N1301996-09-30030 September 1996 Monthly Operating Repts for Sept 1996 for North Anna Power Station Unit 1 & 2 ML20117M0781996-08-31031 August 1996 Monthly Operating Repts for Aug 1996 for North Anna Power Station Units 1 & 2 ML20116J6431996-07-31031 July 1996 Monthly Operating Repts for Jul 1996 for North Anna Power Station Units 1 & 2 ML20115G2341996-06-30030 June 1996 Monthly Operating Repts for June 1996 for North Anna Power Station Units 1 & 2 ML20117M1811996-05-31031 May 1996 Monthly Operating Rept for May 1996 for North Anna 1 ML20117E7501996-04-30030 April 1996 Monthly Operating Rept for Apr 1996 for North Anna Power Station Units 1 & 2 ML20107C2951996-03-31031 March 1996 Monthly Operating Repts for Mar 1996 for North Anna Power Station Units 1 & 2 ML20106H0631996-02-29029 February 1996 Monthly Operating Repts for Feb 1996 for NAPS ML20097D5661996-01-31031 January 1996 Monthly Operating Repts for Jan 1996 for North Anna Power Station Units 1 & 2 ML20096C3041995-12-31031 December 1995 Monthly Operating Repts for Dec 1995 for North Anna Power Station,Units 1 & 2 ML20095D8611995-11-30030 November 1995 Monthly Operating Repts for Nov 1995 for North Anna Power Station ML20094H3601995-10-31031 October 1995 Monthly Operating Repts for Oct 1995 for North Anna Power Station ML20093D8781995-09-30030 September 1995 Monthly Operating Repts for Sept 1995 for North Anna Power Station Units 1 & 2 ML20092F5571995-08-31031 August 1995 Monthly Operating Repts for Aug 1995 for North Anna Power Station 1999-09-30
[Table view] Category:TEXT-SAFETY REPORT
MONTHYEARML20217N9281999-10-20020 October 1999 Special Rept:On 991003,PZR PORV Actuation Mitigated RCS low- Temp Overpressure Transient.Caused by a RCP Facilitating Sweeping of Entrained Air Out of RCS Loops.Operating Procedure 2-OP-5.1 Will Be Revised ML20217H3631999-10-14014 October 1999 Rev 0 to COLR for North Anna 2 Cycle 14 Pattern Su ML18152A2811999-10-12012 October 1999 Technical Basis for Elimination of Nozzle Inner Radius Insps (for Nozzles Other than Reactor Vessel),Technical Basis for ASME Section XI Code Case N-619. ML20212J9251999-10-0101 October 1999 Safety Evaluation Accepting Licensee Relief Request IWE-3 for Second 10-year ISI for Plant ML20217D6851999-09-30030 September 1999 Monthly Operating Repts for Sept 1999 for North Anna Power Station,Units 1 & 2.With ML20211N2611999-09-0808 September 1999 Safety Evaluation Concluding That Proposed Irradiation of Fuel Rods Beyond Current Lead Rod Burnup Limit & Clarification of Terminology with Respect to Reconstituted Fuel Assemblies Acceptable ML20211J2561999-08-31031 August 1999 Safety Evaluation Accepting Elimination of Augmented ISI Program for Pressurizer Spray Lines at North Anna Unit 2 ML20216E5011999-08-31031 August 1999 Monthly Operating Repts for Aug 1999 for Naps,Units 1 & 2. with ML20211J2421999-08-31031 August 1999 Safety Evaluation Supporting Removal of Augmented Insp Program on RCS Bypass Lines from Licensing Basis of North Anna,Units 1 & 2 ML20210T0791999-08-13013 August 1999 Safety Evaluation Concluding That Revised Withdrawal Schedules for North Anna Units 1 & 2 Satisfy Requirements of App H to 10CFR50 & Therefore Acceptable ML20210S1411999-07-31031 July 1999 Monthly Operating Repts for July 1999 for North Anna Power Station.With ML20210Q9931999-07-31031 July 1999 Rev 1 to COLR for North Anna Power Station,Unit 2 Cycle 13 Pattern Ud ML20209E5641999-06-30030 June 1999 Monthly Operating Repts for June 1999 for North Anna Power Stations,Units 1 & 2.With ML20195G1901999-05-31031 May 1999 Monthly Operating Rept for May 1999 for NAPS Units 1 & 2. with ML20206L4831999-05-10010 May 1999 SER Accepting Request to Delay Submitting Plant,Unit 1 Class 1 Piping ISI Program for Third Insp Interval Until 010430, to Permit Development of Risk Informed ISI Program for Class 1 Piping ML20206Q6671999-04-30030 April 1999 Monthly Operating Repts for Apr 1999 for North Anna Power Station,Units 1 & 2.With ML20205S0391999-04-21021 April 1999 SER Accepting Request for Relief IWE5,per 10CFR50.55a(a)(3) & Proposed Alternatives for IWE2,IWE4,IWE6 & IWL2 Authorized Per 10CFR50.55a(a)(3)(ii) ML20205K3041999-03-31031 March 1999 Monthly Operating Repts for Mar 1999 for North Anna Power Station,Units 1 & 2.With ML20207K5921999-02-28028 February 1999 Monthly Operating Repts for Feb 1999 for North Anna Power Station,Units 1 & 2.With ML20207E1731999-02-18018 February 1999 Informs Commission of Status of Preparations of IAEA Osart Mission to North Anna Nuclear Power Plant Early Next Year ML20205A0241998-12-31031 December 1998 Summary of Facility Changes,Tests & Experiments,Including Summary of SEs Implemented at Plant During 1998,per 10CFR50.59(b)(2).With ML20199C8781998-12-31031 December 1998 Monthly Operating Repts for Dec 1998 for North Anna Power Station,Units 1 & 2.With ML20198H9541998-12-0303 December 1998 Safety Evaluation Authorizing Proposed Alternative for Remainder of Second 10-yr Insp Interval for Plant ML20198J5561998-12-0303 December 1998 ISI Summary Rept for North Anna Power Station,Unit 1 1998 Refueling Outage Owner Rept for Inservice Insps ML20197G8551998-11-30030 November 1998 Monthly Operating Repts for Nov 1998 for North Anna Power Station,Units 1 & 2.With ML20196G1381998-11-0303 November 1998 Safety Evaluation Authorizing Rev to Relief Request NDE-32 for Remainder of Second 10-yr Insp Interval for Each Unit ML20195D0571998-10-31031 October 1998 Monthly Operating Repts for Oct 1998 for North Anna Power Station,Units 1 & 2.With ML20154L0691998-10-14014 October 1998 COLR for North Anna Power Station Unit 1 Cycle 14 Pattern Xy ML20155J6911998-10-0909 October 1998 Staff Response to Tasking Memorandum & Stakeholder Concerns ML20154H4001998-09-30030 September 1998 Monthly Operating Repts for Sept 1998 for North Anna Power Station,Units 1 & 2.With ML20151X8011998-09-10010 September 1998 Special Rept:On 980622,groundwater Level at Piezometer P-22 Was Again Noted to Be Above Max Water Level by 0.71 Feet. Increased Frequency of Piezometer Monitoring & Installed Addl Piezometers at Toe of Slope Along Southwest Section ML20151W4711998-08-31031 August 1998 Monthly Operating Repts for Aug 1998 for North Anna Power Station Units 1 & 2.With ML20237A4341998-07-31031 July 1998 Monthly Operating Repts for July 1998 for North Anna Power Station,Units 1 & 2 ML20236V1251998-07-14014 July 1998 ISI Summary Rept for Naps,Unit 2,1998 Refueling Outage Owners Rept of Isis ML20236K5531998-07-0707 July 1998 SER Accepting Request for Change in ISI Commitment on Protection Against Pipe Breaks Outside Containment ML20236M3381998-06-30030 June 1998 Monthly Operating Repts for June 1998 for North Anna Power Station,Units 1 & 2 ML20248M1011998-05-31031 May 1998 Monthly Operating Repts for May 1998 for North Anna Power Station,Units 1 & 2 ML20248C8831998-05-29029 May 1998 SER Accepting Alternatives Proposed by Licensee for Use of Code Case N-535,pursuant to 10CFRa(a)(3)(i) in ASME Section XI Inservice Insp Program ML20247K9281998-05-15015 May 1998 Special Rept:On 980428,letdown PCV Exhibited Slow Response When C RCP Was Started.Cause to Be Determined.Review of Operating Procedure Will Be Performed to Determine If Enhancements Are Necessary ML20216A8971998-05-0606 May 1998 Rev 0 to Cycle 13 Pattern Ud COLR for North Anna Unit 2 ML20247F4441998-04-30030 April 1998 Monthly Operating Repts for Apr 1998 for North Anna Power Station,Units 1 & 2 ML20217B5321998-04-20020 April 1998 Safety Evaluation Supporting Proposed Alternative to ASME Code for Surface Exam of Seal Welds on Threaded Caps for Plant Reactor Vessel Head Penetrations for part-length CRDMs ML20217H9611998-04-0707 April 1998 Special Rept:On 980216,groundwater Level at Piezometer P-22, Again Noted to Be Above Max Water Level by 0.41 Feet.Design Package for Installation of Addl Standpipe Piezometers at Toe of Slope Southeast Section,Developed ML20216B1891998-03-31031 March 1998 Monthly Operating Repts for Mar 1998 for North Anna Power Station,Units 1 & 2 ML20216E8801998-03-0606 March 1998 Safety Evaluation Authorizing Licensee Request for Relief from ASME Code Requirements,Paragraph IWA-2400(c) (Summer Edition W/Summer 1983 Addenda),For Upcoming Naps,Unit 1 Outage,Per 10CFR50.55a(a)(3)(ii) ML20216E2561998-02-28028 February 1998 Monthly Operating Repts for Feb 1998 for North Anna Power Station,Units 1 & 2 ML20199J6431998-02-0202 February 1998 Safety Evaluation Approving Request for Approval to Repair Flaws in Accordance W/Gl 90-05 for ASME Code Class 3 SW Piping for North Anna,Unit 1,as Submitted in ISI Relief Request NDE-46 on 971218 ML20202D5811998-01-31031 January 1998 Monthly Operating Repts for Jan 1998 for North Anna Power Station,Units 1 & 2 ML20198S7571998-01-15015 January 1998 Safety Evaluation Accepting Licensee Request for Approval to Repair Flaws IAW GL-90-05 for ASME Code Class 3 Svc Water Piping ML20198P1351997-12-31031 December 1997 Monthly Operating Repts for Dec 1997 for North Anna Power Station,Units 1 & 2 1999-09-08
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T VIRGINIA ELECTRIC AND POWER COMPANY NORTH ANNA POWER STATION MONTHLY OPERATING REPORT MONTH JULY YEAR 1981 4
i APPROVED:
/
4 STATION }fANAGER
[f .
t 8201150366 810813 PDR ADOCK 05000338 R PDR
T OPERATING DATA REPORT DOCKET NO. 50-338 DATE 08-05-81 COMPLETED BY L.L. Rogers TELEPHONE (703) 894-5151 X2510 OPERATING STATUS Notes
- 1. Unit Name: North Anna 1
- 2. Reporting Period: July 1981
- 3. Licensed Thermal Power (MWt): 2775
- 4. Nameplate Rating (Gross MWe): 947
- 5. Design Electrical Rating (Net MWe): 907
- 6. Maximum Dependable Capacity (Gross MWe): 915
- 7. Maximum Dependable Capacity (Net MWe): 865
- 8. If Changes Occur in Capacity Ratings (Items No. 3 thru 7) Since Last Report, Give Reasons:
N/A
- 9. Power Level To Which Restricted, If Any (Net MWe): N/A
- 10. Reasons For Restrictions, If Any: N/A This Month Yr.-to-Date Cumulative
- 11. Hours In Reporting Period 744 5,087 27,648
- 12. Number of Hours Reactor Was Critical 737.4 2,789.4 20,762.5
- 13. Reactor Reserve Shutdown Hours 1 4.8 217.9
- 14. Hours Generator On-Line 728.1 __2,681.4 20,329.5
- 15. Unit Reserve Shutdown Hours 0 0 0
- 16. Gross Thermal Energy Generated (MWH) 1,957,605 7,059,205 52,227,908
- 17. Gross Electrical Energy Generated (MWH) 634,730 2,310,580 16,645,492
- 18. Net Electrical Energy Generated (MWH) 598,636 2,180,715 15,665,718 .
l 19. Unit Service Factor 97.9 52.7 73.5
- 20. Unit Availability Factor 97.9 52.7 73.5
- 21. Unit Capacity Factor (Using MDC Net) 93.0 49.6 65.5
- 22. Unit Capacity Factor (Using DER Net) 88.7 47.3 62.4 l 23. Unit Forced Outage Rate 2.1 .
1.2 5.4
- 24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):
Fall Maintenance 02-81 thru 10-16-81
- 25. If Shut Down At End Of Report Period, Estimated Date of Startup: N/A
- 26. Units In Test Status (Prior to Commercial Operation):
Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION
AVERAGE DAILY UNIT POWER LEVEL DOCKET No. 50-338 UNIT NA-1 DATE 08-05-81 COMPLETED BY L.L. Roge'rs TELEPHONE 703-894-5151X251T MONTH July DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 1 856 17 845 2 850 18 847 3 530 19 _
847 4 850 20 847 5 854 21 848 6 855 22 847 1
7 857 23 850 8 855 24 851 9 856 25 851
- 10 499 26 850 11 851 27 850 i
12 490 28 850 13 469 29 851 14 843 30 851 __
15 847 31 852 16 846 INSTRUCTIONS On this format, list the average daily unit power level in MWe-Net for,each day in the reporting month. Compute to the nearest whole megawatt.
UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50-338 UNIT NAME North Anna 1 DATE 08-05-81 REPORT MONTH JULY COMPLETED BY L. L. ROGERS TELEPHONE (703) 894-5151 X2510 1 2 Ns. Date Type Duration Reason Method of Licensee System Component Cause & Corrective (Hours) Shutting 3
Down Reactor Report # Prevent Recurrence 81-08 810703 F 15 F 5 N/A N/A N/A Reduced power to 30% due to fire on Unit 2 "B" Main Transformer.
81-09 810710 F 7.3 A 3 N/A N/A N/A Turbine trip / reactor trip
- due to diaphragm failure l in bearing lube oil trip j on trip block. Installed
- new diaphragm in turbine trip block
, 81-10 810712 F 8.6 B 3 N/A N/A N/A Reactor trip / turbine trip due to "A" bypass breaker l failure during performance of 1-PT-36.1.
i 2 1 3 4 F: Forced Reason: Method: Exhibit F - Instructions 1
S: Scheduled A-Equipment Failure (Explain) 1-Manual for Preparation of Data B-Maintenance or Test 2-Manual Scram. Entry Sheets for Licensee C-Refueling 3-Automatic Scram Event Report (LER) File D-Regulatory Restriction 4-Continuations (NUREG-0161)
E-Operator Training & License Examination 5-Load Reduction F-Administrative. 6-Other 5
G-Operational Error (Explain)
H-Other (Explain) Exhibit 4 - Same Source
Page 1 of 1 UNIT SHUrDOWN AND P0kTR REDUCTIONS EXPLANATION SHEET DOCKET NO. _ ,,50-338 REPORT MONTH JULY UNIT NAME NA-1 YEAR 1981 DATE 08-05-81 COMPLETED BY L. L. ROGERS 81-09 (A) (3) Turbine trip / reactor trip due to diaphragm failure in bearing lube oil trip on trip block.
OPERATING DATA REPORT DOCKET NO. 50-339 DATE 08-05-81 COMPLETED BY L.L. Rogers __
TELEPHONE (703) 394-5151 X2510,
, l OPERATING STATUS Notes Line 16 yr-to-date and
- 1. Unit Name: North Anna 2 cumulative have been adjusted
- 2. Reporting Period: ___ July 1981 for burnup over estimation .
- 3. Licensed Thermal Power (MWt): 2775 from beginning of cycle 1
- 4. Nameplate Rating (Gross NWe): 947 through April 30, 1981.
- 5. Design Electrical Rating (Net MWe): _ 907
- 6. Maximum Dependable capacity (Gross MWe): 938
- 7. Maximum Dependable Capacity (Net MWe): 890
- 8. If Changes Occur in Capacity Ratings (Items No 3 thru 7) Since Last Report, Give Reasons:
N/A
- 9. Power Level To Which Restricted, If Any (Net MWe): N/A
- 10. Reasons For Restrictions, If Any: N/A l
l l
This Month Yr.-to-Date Cumulative i
. 11. Hours In Reporting Period 744 5,087 5,519 I
- 12. Number of Hours Reactor Was Critical 14.1 3,779.2 4,208.1
- 13. Reactor Reserve Shutdown Hours 744 1,054.8 1,334.8
- 14. Hours Generator On-Line 0 3,692 4,104.7
- 15. Unit Reserve Shutdown Hours 0 0 0
- 16. Gross Thermal Energy Generated (MWH) 311 9,540,212 10,627,209 j
- 17. Gross Electrical Energy Generated (MWH) 0 3,216,123 3,584,554 ;
l 18. Net Electrical Energy Generated (MWH) 0 3,041,481 3,391,125 _ l l 19. Unit Service Factor 0 72.6 74.4 72.6 74.4
- 20. Unit Availability Factor 0
- 21. Unit Capacity Factor (Using MDC Net) 0 67.2 69.0 l l 22. Unit Capacity Factor (Using DER Net) 0 65.9 67.7 l
- 23. Unit Forced Outage Rate 100 23.1 21.6
- 24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each): l Fall Maintenance 16-81 thru 10-30 !
- 25. If Shut Down At End Of Report Period, Estimated Date of Startup: 08-10-81
- 26. Units In Test Status (Prior to Commercial Operation): l Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY
! ' COMMERCIAL OPERATION 1
1
AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-339 UNIT NA-2 DATE 08-05-81 COMPLETED BY L.L. Rogers TELEPHONE 703-894-515iX2510, MONTH July DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 1 0 17 0 2 0 18 0 3 0 19 0 4 0 20 0 5 0 21 0 6 0 22 0 7 0 23 0 8 0 24 0 9 0 25 0 10 0 26 0 11 0 27 0 12 0 28 0 13 0 29 0 14 0 30 0 15 0 31 0 16 0 INSTRUCTIONS On this format, list the average daily unit power level in MWe-Net for each day in the reporting month. Compute to the nearest whole megawatt.
UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50-339 '
UNIT NAME North Anna 2 DATE 08-05-81 REPORT MONTH JULY CONPLETED BY L. L. H0GERS TELEPHONE (703) 894-5151 X2510 2 Cause & Corrective No. Date Typel Duration Reason Method of Licer.see System Component (Hours) Shutting ven Code 4
Code 5
^*""
3 Prevent Recurrence Down Reactor Report #
81-19 810619 F 85, t/ A 4 N/A N/A N/A Continuation of "C" Main i
Transformer Failure Outage 81-20 810703 F f g g,f A 3 Reactor trip due to failure l of "B" Main Transformer. While attempting to return unit to service on 7-25-61 "C" Main Transformer failed. The cause of the transformer failure is unknown at this time, an investigation is pending.
I 2 3 4 F: Forced Reason: Method: Exhibit F - Instructions S: Scheduled A-Equipment Failure (Explain) 1-Manual for Preparation of Data B-Maintenance or Test 2-Manual Scram. Entry Sheets for Licensee C-Refueling 3-Automatic Scram Event Report (LER) File D-Regulatory Restriction 4-Continuations (NUREG-0161)
E-Operator Training & License Examination 5-Load Reduction F-Administrative 6-Other 5 G-Operational Error (Explain)
_H-Other (Explain) Exhibit H - Same Source h
Page 1 of 1 UNIT SHUTDOkW AhD P0k'ER REDUCTIONS EXPLANATION SHEET DOCKET NO. 50-339 REPORT MONTH JULY UNIT NAME NA-2 YEAR 1981 DATE 08-05-81 COMPLETED BY L. L. ROGERS 81-20 (A) (3) Turbine trip / reactor trip due to fire on "B" Main Transformer as a result of transformer failure.
k'hile attempting to return the unit to service, on 07-25-81, with the Unit on backfeed, "C" Main Transformer failed. The transformers have been replaced. An investigation into the cause of the failures is in progress.
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