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| / '' ' '- Page Two of Two DOCKET NO. 50-271 UNITSilU1 DOWNS AND POWER REDUCTIONS UNIT N AhtE Vermont Yankee DATE 800212 REPORT AIONTil January, 1980 00&tPLETED ilY R. 11. Sionren TELEPilONE 617-366-9011 x2368 c | | / '' ' '- Page Two of Two DOCKET NO. 50-271 UNITSilU1 DOWNS AND POWER REDUCTIONS UNIT N AhtE Vermont Yankee DATE 800212 REPORT AIONTil January, 1980 00&tPLETED ilY R. 11. Sionren TELEPilONE 617-366-9011 x2368 c |
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Category:MONTHLY OPERATING ANALYSIS REPORT
MONTHYEARBVY-99-127, Monthly Operating Rept for Sept 1999 for Vermont Yankee Nuclear Power Station.With1999-09-30030 September 1999 Monthly Operating Rept for Sept 1999 for Vermont Yankee Nuclear Power Station.With BVY-99-112, Monthly Operating Rept for Aug 1999 for Vermont Yankee.With1999-08-31031 August 1999 Monthly Operating Rept for Aug 1999 for Vermont Yankee.With BVY-99-102, Monthly Operating Rept for July 1999 for Vermont Yankee. with1999-07-31031 July 1999 Monthly Operating Rept for July 1999 for Vermont Yankee. with BVY-99-090, Monthly Operating Rept for June 1999 for Vermont Yankee Nuclear Power Station.With1999-06-30030 June 1999 Monthly Operating Rept for June 1999 for Vermont Yankee Nuclear Power Station.With BVY-99-077, Monthly Operating Rept for May 1999 for Vermont Yankee Nuclear Power Station.With1999-05-31031 May 1999 Monthly Operating Rept for May 1999 for Vermont Yankee Nuclear Power Station.With BVY-99-068, Monthly Operating Rept for Apr 1999 for Vynp.With1999-04-30030 April 1999 Monthly Operating Rept for Apr 1999 for Vynp.With BVY-99-046, Monthly Operating Rept for Mar 1999 for Vermont Yankee Nuclear Power Station.With1999-03-31031 March 1999 Monthly Operating Rept for Mar 1999 for Vermont Yankee Nuclear Power Station.With BVY-99-035, Monthly Operating Rept for Feb 1999 for Vermont Yankee Nuclear Station.With1999-02-28028 February 1999 Monthly Operating Rept for Feb 1999 for Vermont Yankee Nuclear Station.With BVY-99-001, Monthly Operating Rept for Dec 1998 for Vermont Yankee Nuclear Power Station1998-12-31031 December 1998 Monthly Operating Rept for Dec 1998 for Vermont Yankee Nuclear Power Station BVY-98-163, Monthly Operating Rept for Nov 1998 for Vermont Yankee Nuclear Power Station.With1998-11-30030 November 1998 Monthly Operating Rept for Nov 1998 for Vermont Yankee Nuclear Power Station.With BVY-98-154, Monthly Operating Rept for Oct 1998 for Vermont Yankee Nuclear Power Station.With1998-10-31031 October 1998 Monthly Operating Rept for Oct 1998 for Vermont Yankee Nuclear Power Station.With BVY-98-149, Monthly Operating Rept for Sept 1998 for Vermont Yankee Nuclear Power Station.With1998-09-30030 September 1998 Monthly Operating Rept for Sept 1998 for Vermont Yankee Nuclear Power Station.With BVY-98-135, Monthly Operating Rept for Aug 1998 for Vermont Yankee Nuclear Power Station.With1998-08-31031 August 1998 Monthly Operating Rept for Aug 1998 for Vermont Yankee Nuclear Power Station.With BVY-98-122, Monthly Operating Rept for July 1998 for Vermont Yankee Nuclear Power Station1998-07-31031 July 1998 Monthly Operating Rept for July 1998 for Vermont Yankee Nuclear Power Station BVY-98-098, Monthly Operating Rept for June 1998 for Vermont Yankee Nuclear Power Station1998-06-30030 June 1998 Monthly Operating Rept for June 1998 for Vermont Yankee Nuclear Power Station BVY-98-081, Monthly Operating Rept for May 1998 for Vermont Yankee Nuclear Power Station1998-05-31031 May 1998 Monthly Operating Rept for May 1998 for Vermont Yankee Nuclear Power Station BVY-98-068, Monthly Operating Rept for Apr 1998 for Vermont Yankee Nuclear Power Station1998-04-30030 April 1998 Monthly Operating Rept for Apr 1998 for Vermont Yankee Nuclear Power Station BVY-98-053, Monthly Statistical Rept for Mar 1998 for Vynp1998-03-31031 March 1998 Monthly Statistical Rept for Mar 1998 for Vynp ML20248L1581998-02-28028 February 1998 Monthly Operating Rept for Feb 1998 for Vermont Yankee Nuclear Power Station ML20217M7801998-01-31031 January 1998 Monthly Operating Rept for Jan 1998 for Vynp Station ML20198L6111997-12-31031 December 1997 Monthly Operating Rept for Dec 1997 for Vynp Station BVY-97-161, Monthly Operating Rept for Nov 1997 for Vermont Yankee Nuclear Power Station1997-11-30030 November 1997 Monthly Operating Rept for Nov 1997 for Vermont Yankee Nuclear Power Station BVY-97-145, Monthly Operating Rept for Oct 1997 for Vermont Yankee Nuclear Power Station1997-10-31031 October 1997 Monthly Operating Rept for Oct 1997 for Vermont Yankee Nuclear Power Station BVY-97-126, Monthly Operating Rept for Sept 1997 for Vermont Yankee Nuclear Power Station1997-09-30030 September 1997 Monthly Operating Rept for Sept 1997 for Vermont Yankee Nuclear Power Station BVY-97-111, Monthly Operating Rept for Aug 1997 for Vermont Yankee Nuclear Power Station1997-08-31031 August 1997 Monthly Operating Rept for Aug 1997 for Vermont Yankee Nuclear Power Station BVY-97-098, Monthly Operating Rept for Jul 1997 for Vermont Yankee Nuclear Power Station1997-07-31031 July 1997 Monthly Operating Rept for Jul 1997 for Vermont Yankee Nuclear Power Station BVY-97-088, Monthly Operating Rept for June 1997 for Nynps1997-06-30030 June 1997 Monthly Operating Rept for June 1997 for Nynps BVY-97-074, Monthly Operating Rept for May 1997 for Vermont Yankee Nuclear Power Station1997-05-31031 May 1997 Monthly Operating Rept for May 1997 for Vermont Yankee Nuclear Power Station BVY-97-059, Monthly Operating Rept for Apr 1997 for Vermont Yankee Nuclear Station1997-04-30030 April 1997 Monthly Operating Rept for Apr 1997 for Vermont Yankee Nuclear Station BVY-97-042, Monthly Operating Rept for Mar 1997 for Vermont Yankee Nuclear Power Station1997-03-31031 March 1997 Monthly Operating Rept for Mar 1997 for Vermont Yankee Nuclear Power Station BVY-97-033, Monthly Operating Rept for Feb 1997 for Vermont Yankee Power Station1997-02-28028 February 1997 Monthly Operating Rept for Feb 1997 for Vermont Yankee Power Station BVY-97-021, Monthly Operating Rept for Jan 1997 for VYNPS1997-01-31031 January 1997 Monthly Operating Rept for Jan 1997 for VYNPS BVY-97-001, Monthly Operating Rept for Dec 1996 for Vermont Yankee Nuclear Power Station1996-12-31031 December 1996 Monthly Operating Rept for Dec 1996 for Vermont Yankee Nuclear Power Station BVY-96-154, Monthly Operating Rept for Nov 1996 for Vermont Yankee Nuclear Power Station1996-11-30030 November 1996 Monthly Operating Rept for Nov 1996 for Vermont Yankee Nuclear Power Station BVY-96-138, Monthly Operating Rept for Oct 1996 for Vermont Yankee Nuclear Power Station1996-10-31031 October 1996 Monthly Operating Rept for Oct 1996 for Vermont Yankee Nuclear Power Station BVY-96-114, Monthly Operating Rept for Sept 1996 for Vynp1996-09-30030 September 1996 Monthly Operating Rept for Sept 1996 for Vynp BVY-96-103, Monthly Operating Rept for Aug 1996 for Vermont Yankee Nuclear Power Station1996-08-31031 August 1996 Monthly Operating Rept for Aug 1996 for Vermont Yankee Nuclear Power Station BVY-96-095, Monthly Operating Rept for July 1996 for VT Yankee Nuclear Power Station1996-07-31031 July 1996 Monthly Operating Rept for July 1996 for VT Yankee Nuclear Power Station BVY-96-087, Monthly Operating Rept for June 1996 for Vermont Yankee Nuclear Power Station1996-06-30030 June 1996 Monthly Operating Rept for June 1996 for Vermont Yankee Nuclear Power Station BVY-96-072, Monthly Operating Rept for May 1996 for Vermont Yankee Nuclear Power Station1996-05-31031 May 1996 Monthly Operating Rept for May 1996 for Vermont Yankee Nuclear Power Station BVY-96-057, Monthly Operating Rept for Apr 1996 for VT Yankee Power Station1996-04-30030 April 1996 Monthly Operating Rept for Apr 1996 for VT Yankee Power Station BVY-96-041, Monthly Operating Rept for Mar 1996 for Vynp1996-03-31031 March 1996 Monthly Operating Rept for Mar 1996 for Vynp BVY-96-018, Monthly Statistical Rept for Feb 1996 for VT Yankee Nuclear Power Station1996-02-29029 February 1996 Monthly Statistical Rept for Feb 1996 for VT Yankee Nuclear Power Station BVY-96-009, Monthly Operating Rept for Jan 1996 for Vermont Yankee Nuclear Power Station1996-01-31031 January 1996 Monthly Operating Rept for Jan 1996 for Vermont Yankee Nuclear Power Station BVY-96-001, Monthly Operating Rept for Dec 1995 for Vermont Yankee Nuclear Power Station1995-12-31031 December 1995 Monthly Operating Rept for Dec 1995 for Vermont Yankee Nuclear Power Station ML20095F6601995-11-30030 November 1995 Last Page of Monthly Operating Rept for Nov 1995 for Vermont Yankee BVY-95-131, Monthly Operating Rept for Nov 1995 for Vermont Yankee Nuclear Power Station1995-11-30030 November 1995 Monthly Operating Rept for Nov 1995 for Vermont Yankee Nuclear Power Station BVY-95-118, Monthly Operating Rept for Oct 1995 for Vynp1995-10-31031 October 1995 Monthly Operating Rept for Oct 1995 for Vynp BVY-95-106, Monthly Operating Rept for Sept 1995 for Vynp1995-09-30030 September 1995 Monthly Operating Rept for Sept 1995 for Vynp ML20092F5901995-08-31031 August 1995 Monthly Operating Rept for Aug 1995 for Vermont Yankee Nuclear Station 1999-09-30
[Table view] Category:TEXT-SAFETY REPORT
MONTHYEARML20217L8831999-10-21021 October 1999 Safety Evaluation Supporting Proposed Alternatives to Code Requirements Described in RR-V17 & RR-V18 ML20217G2041999-10-13013 October 1999 Safety Evaluation Supporting Amend 179 to License DPR-28 BVY-99-127, Monthly Operating Rept for Sept 1999 for Vermont Yankee Nuclear Power Station.With1999-09-30030 September 1999 Monthly Operating Rept for Sept 1999 for Vermont Yankee Nuclear Power Station.With ML20212C2551999-09-17017 September 1999 Safety Evaluation Supporting Amend 175 to License DPR-28 BVY-99-112, Monthly Operating Rept for Aug 1999 for Vermont Yankee.With1999-08-31031 August 1999 Monthly Operating Rept for Aug 1999 for Vermont Yankee.With BVY-99-109, Ro:On 990812,stack Ng Effluent Instrumentation for PAM Was Declared Oos.Caused by Instrument Drift Due to Electronic Components Based on Insps by Instrumentation & Controls Dept.Detector & Preamplifier Will Be Replaced on 9908311999-08-19019 August 1999 Ro:On 990812,stack Ng Effluent Instrumentation for PAM Was Declared Oos.Caused by Instrument Drift Due to Electronic Components Based on Insps by Instrumentation & Controls Dept.Detector & Preamplifier Will Be Replaced on 990831 BVY-99-102, Monthly Operating Rept for July 1999 for Vermont Yankee. with1999-07-31031 July 1999 Monthly Operating Rept for July 1999 for Vermont Yankee. with ML20209J0081999-07-14014 July 1999 Special Rept:On 990615,diesel Driven Fire Pump Failed to Achieve Rated Flow of 2500 Gallons Per Minute.Pump Was Inoperable for Greater than 7 Days.Corrective Maint Was Performed to Reset Pump Lift Setting BVY-99-090, Monthly Operating Rept for June 1999 for Vermont Yankee Nuclear Power Station.With1999-06-30030 June 1999 Monthly Operating Rept for June 1999 for Vermont Yankee Nuclear Power Station.With ML20196G5071999-06-23023 June 1999 Vynp Assessment of On-Site Disposal of Contaminated Soil by Land Spreading BVY-99-077, Monthly Operating Rept for May 1999 for Vermont Yankee Nuclear Power Station.With1999-05-31031 May 1999 Monthly Operating Rept for May 1999 for Vermont Yankee Nuclear Power Station.With BVY-99-068, Monthly Operating Rept for Apr 1999 for Vynp.With1999-04-30030 April 1999 Monthly Operating Rept for Apr 1999 for Vynp.With ML20206E8741999-04-29029 April 1999 SER Determined That Flaw Evaluation Meets Rules of ASME Code & Assumed Crack Growth Rate Adequate for Application ML20206D9301999-04-27027 April 1999 1999 Emergency Preparedness Exercise 990427 Exercise Manual (Plume Portion) ML20205S4211999-04-16016 April 1999 Non-proprietary Version of Revised Page 4-3 of HI-981932 Technical Rept for Vermont Yankee Spent Fuel Pool Storage Expansion ML20205K7581999-04-0707 April 1999 Safety Evaluation Supporting Alternative Proposal for Reexamination of Circumferential Welds with Detected Flaw Indications in Plant RPV BVY-99-046, Monthly Operating Rept for Mar 1999 for Vermont Yankee Nuclear Power Station.With1999-03-31031 March 1999 Monthly Operating Rept for Mar 1999 for Vermont Yankee Nuclear Power Station.With ML20205F6631999-03-0404 March 1999 Jet Pump Riser Weld Leakage Evaluation BVY-99-035, Monthly Operating Rept for Feb 1999 for Vermont Yankee Nuclear Station.With1999-02-28028 February 1999 Monthly Operating Rept for Feb 1999 for Vermont Yankee Nuclear Station.With ML20205P8241999-02-28028 February 1999 Rev 2 to Vermont Yankee Cycle 20 Colr ML20203H9881999-02-18018 February 1999 SER Accepting Alternative to 10CFR50.55a(g)(6)(ii)(A) Augmented Reactor Vessel Exam at Vermont Yankee Nuclear Power Station.Technical Ltr Rept Encl ML20203A6951999-02-0404 February 1999 Revised Rev 2,App B to Vermont Yankee Operational QA Manual (Voqam) ML20199K7151999-01-21021 January 1999 Corrected Safety Evaluation Supporting Amend 163 Issued to FOL DPR-28.Pages 2 & 3 Required Correction & Clarification ML20199K6991999-01-20020 January 1999 Safety Evaluation Concluding That Request to Use YAEC-1339, Yankee Atomic Electric Co Application of FIBWR2 Core Hydraulics Code to BWR Reload Analysis, at Vermont Yankee Acceptable ML20199L5951999-01-14014 January 1999 Safety Evaluation Accepting Licensee Proposed Alternative to Code Requirement,Described in Rev 2 to Pump Relief Request RR-P10 Pursuant to 10CFR50.55a(a)(3)(i) BVY-99-071, Corp 1998 Annual Rept. with1998-12-31031 December 1998 Corp 1998 Annual Rept. with BVY-99-001, Monthly Operating Rept for Dec 1998 for Vermont Yankee Nuclear Power Station1998-12-31031 December 1998 Monthly Operating Rept for Dec 1998 for Vermont Yankee Nuclear Power Station ML20198H5481998-12-23023 December 1998 Rev 2 to Vermont Operational QA Manual,Voqam ML20196H8641998-12-0101 December 1998 Cycle 19 Operating Rept BVY-98-163, Monthly Operating Rept for Nov 1998 for Vermont Yankee Nuclear Power Station.With1998-11-30030 November 1998 Monthly Operating Rept for Nov 1998 for Vermont Yankee Nuclear Power Station.With ML20195C4161998-11-0909 November 1998 SER Accepting Request That NRC Approve ASME Code Case N-560, Alternative Exam Requirement for Class 1,Category B-J Piping Welds BVY-98-154, Monthly Operating Rept for Oct 1998 for Vermont Yankee Nuclear Power Station.With1998-10-31031 October 1998 Monthly Operating Rept for Oct 1998 for Vermont Yankee Nuclear Power Station.With ML20155B6471998-10-26026 October 1998 Safety Evaluation Accepting Jet Pump Riser Insp Results & Flaw Evaluation,Conducted During 1998 Refueling Outage ML20154N0891998-10-16016 October 1998 Rev 1 to Vermont Operational QA Program Manual (Voqam) ML20154B6951998-10-0101 October 1998 SER Re Licensee Response to GL 95-07, Pressure Locking & Thermal Binding of Safety-Related Power-Operated Gate Valves, for Vermont Yankee Nuclear Power Station BVY-98-149, Monthly Operating Rept for Sept 1998 for Vermont Yankee Nuclear Power Station.With1998-09-30030 September 1998 Monthly Operating Rept for Sept 1998 for Vermont Yankee Nuclear Power Station.With ML20239A1361998-09-0202 September 1998 SER Re License Request for NRC Review & Concurrence W/Changes to NRC-approved Fire Protection Program BVY-98-135, Monthly Operating Rept for Aug 1998 for Vermont Yankee Nuclear Power Station.With1998-08-31031 August 1998 Monthly Operating Rept for Aug 1998 for Vermont Yankee Nuclear Power Station.With ML20151U0361998-08-28028 August 1998 Non-proprietary Rev 1 to Holtec Rept HI-981932, Vermont Yankee Nuclear Power Station Spent Storage Expansion Project ML20237E9221998-08-20020 August 1998 Vynp 1998 Form NIS-1 Owners Summary Rept for ISI, 961103-980603 BVY-98-122, Monthly Operating Rept for July 1998 for Vermont Yankee Nuclear Power Station1998-07-31031 July 1998 Monthly Operating Rept for July 1998 for Vermont Yankee Nuclear Power Station ML20205F6491998-07-31031 July 1998 Rev 1 to GE-NE-B13-01935-02, Jet Pump Assembly Welds Flaw Evaluation Handbook for Vermont Yankee ML20236G0011998-06-30030 June 1998 Individual Plant Exam External Events BVY-98-098, Monthly Operating Rept for June 1998 for Vermont Yankee Nuclear Power Station1998-06-30030 June 1998 Monthly Operating Rept for June 1998 for Vermont Yankee Nuclear Power Station ML20248C5081998-05-31031 May 1998 Rev 2 to 24A5416, Supplemental Reload Licensing Rept for Vermont Yankee Nuclear Power Station Reload 19 Cycle 20 ML20248C4951998-05-31031 May 1998 Rev 1 to Vermont Yankee Nuclear Power Station Cycle 20 Colr BVY-98-081, Monthly Operating Rept for May 1998 for Vermont Yankee Nuclear Power Station1998-05-31031 May 1998 Monthly Operating Rept for May 1998 for Vermont Yankee Nuclear Power Station ML20247J8341998-05-31031 May 1998 Peak Suppression Pool Temp Analyses for Large Break LOCA Scenarios, for May 1998 ML20247G4001998-05-12012 May 1998 Interview Rept of Ej Massey ML20247E6351998-04-30030 April 1998 Rev 1 to GE-NE-B13-01935-LTR, Jet Pump Riser Welds Allowable Flaw Sizes Ltr Rept for Vermont Yankee 1999-09-30
[Table view] |
Text
1 V
VER10NT YANKEE NUCLEAR POWER STATION M0trnlLY STATISTICAL REPORT 80-01 FOR THE MONTH OF JANUARY, .1980 o
5 8 0 02 2 906S t
g .
OPERATING DATA REPORT DOCKET NO. 50-271 DATE 800212 CO31PLETED BY J. M. Sjogren TELEPHONE . /-300-9011 x2368 OPERATING STATUS Vermont Yankee Notes
- 1. Unit Name:
- 2. Reporting Period: Januarv, 1980 1593 S. Licensed Thennal Power (31Wt):
- 4. Nameplate Rating (Gross SIWE): 540
- 5. Design Electrical Rating (Net 31W 514[Open cvele) 504 (Closed cycle)
- 6. Sfaximum Dependable Capacity (Gross 5twe): 535
- 7. Staximum Dependable C2pacity (Net SIWE): 514
- 8. If Changes Occur in Capacity Ratings (Items Number 3 Through 7) Sirwe Last Report. Give Reasons:
- 9. Power Level To Which Restricted.If Any (Net 31We):
- 10. Reasons For Festrictions.If Any:
This 3fonth Yr..to.Date Cumulative .
I1. Hours in Reporting Period 744' 744 '
- 12. Nun.ber Of Hours Reactor Was Critical 723.05 723.05 51,881.44 13.' Reactor Resene Sherdown Hours 0.0 0.0 0. 0.
- 14. Hours Generator On.Line 710.1 710.1 , 50,037.88
- 15. Unit Reserve Shutdown Hours 0.0 0.0 0.0
- 16. Gross T'termal Energy Generated (31WH) 1,031,396.5 1,031,396.5 70,256,009.5. .
- 17. Gross Electrical Energy Generated (31WH) 351.821 ,_,
351,821 2 M 21,491 -
- 18. Net E!cctric:1 Ener;y Generated (31WF.) 337,540 337.540 22,105,905
- 19. Unit Service Factor 95.4 95.4 77.5
- 20. Unit Availability Factor 95.4 95.4 - 77.5 *
- 21. Unit Capacity Factor (Using SIDC Net) _
90.0 90.0 68.0
- 22. Uni: Capacity Factoc (Using DER Net) 88.3 88.3 66.6
- 23. Unit Forced Outage Race 3.7 3.7 6.5
- 24. Shutdowns Scheduled Over Next 6 \1onths (Type. Date.and Duration of Each1:
- 25. If Shur Down A End Of Report Period. Estimated Date of Startup: Februarv 4e 1980 '
- 26. Units In Test Status (Prict to Commercin! Operation): Forecar Achieved
,- INIT!AL CRITICALITY -
N, INITIA L ELECTRIC! TY CostMERCIAL OPER ATION
'(4/77)
AVERACE DAILY UNIT POWER LEVEL DOCKET NO. 50-271 UNIT Verm nt Yankee DATE 800212 COMPLETED BY R. M. Sjogren TELEPHONE 617-366-9011 x2368 MONTH Januarv, 1980 DAY AVERAGE ILY VER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) 1 524 524-17 2 524 521 13 3 524 363 19 4 20 320 5 132 396 21 6
133 497
, 22 388 523 k 7 23 3 479 '523 24 9 499 523 25 10 388 355 26 II 477 437 27 12 524 515 23 g3 524 523 29 14 524 ,
5 520 314 33 524 16 INSTilUCTIONS On this format. list the average daily unit power levelin MWe Net for each day in the reportine month. Compute to the nearest whole meg 2 wart.
V (9/77)
C Page One of Two UNITSilUIDOWNS AND POWER REDUCTIONS DOCKET NO. 50-271 UNIT NAME Vermont Yankee DATE 800212 ITEPORT MONTig January, 1980 COMPLETED ItY R. M. Stonren TELEPil0NE 617 '466-9011 x2368 e,
e en 's ui 5 .
5t,
~. .2 e g -, .s X Licensee c 't. c Cause & Corrective N" ' D' ' '
$ jj g jj$ Event p Acijnn in o- M Report # in O y Di j g Psevent Itecurrence 6
80-1 800105 F 27 A 1 N/A CF VALVEX Excessive drywell leakage rate caused by failure of RilR81B packing. Valve was repacked.
80-02 800110 S 0 11 4 N/A RA COUROD Control Rod Pattern adjustment.
(Power ReductI on) 80-03 800118 S 0 11 4 N/A RA CONROD Turbine Surveillance and Control Rod (Power pattern exchange.
Reducti on) 80-04 800120 F 0 11 4 N/A ZZ ZZ Indication of excessive vibration of (Power Turbine Generator bearings due to loos' Reducti on) bolting on exciter case flange.
Tightened same.
I 2 3 4 l': Fois ed Itcason: Method:
S: St heilnied Exhibit G. Instsuctions A Ik iniement Failure (Explain) 1 Manual for Picparation of Data n Maintenance or Test 7 Manual Serain. Enity Sheets f ur 1.icensee C ltefueling: 3 Automatic Scram. Event Itepani ILI R) File INUlti:G.
D.Het;olatory itestriction 4-Ot her (Explain) 01611 1:-Opci.itor l~taining & Ucense Examination F Administiative 5 G Opesational I elos (Explain) Exlnhit I SJme Sonsce Pt/17) Il Othen IExpl.iin)
/ ' '- Page Two of Two DOCKET NO. 50-271 UNITSilU1 DOWNS AND POWER REDUCTIONS UNIT N AhtE Vermont Yankee DATE 800212 REPORT AIONTil January, 1980 00&tPLETED ilY R. 11. Sionren TELEPilONE 617-366-9011 x2368 c
No. Date g
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Licensee [c%
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$% Cause & Currective Event o.3 Action to u!O H 5 g$ 5 Ji 5c Report
- in O Prevent itecurrence a
O f
80-05 800126 S 0 11 4 N/A RA CONROD Control Rod Pattern Exchange (Power Reducti in) 80-06 800131 S 6.9 D 1 N/A ZZ ZZ Shutdown for modifications required by NUREG 0578 I 2 3 4 l': l'ori cil Itcason; hf etliod: Exhibit G -Instinctions S: Stlieduleil A l'quirinent Failure (Explain) 1 hf anual for Piccaration of Daia n hlaintenance of Test 7 htanual Serain. Enity Sheets f or I.icensee C Refueling 3 Antonuti Scrain. Event Itcpos t (LI:lt) I' !c (NUllEG- -
D-Itegulatory Resirictios 4 Oiher (Explain) 0161) li Opci.itor Training & Lkense Examination F Adinini teative 5 G Opciational I seur (1:xpl.iin) Entnbit i . Sanie Sonice t'l/17) 11 tithes (limpliin)
DOCKET NO. 50-271 UNIT Vermont Yankee DATE 800212 COffPLETED BY R. M. Sjogren TELEP110NE 617-366-9011 x2368 SAFETY ltELATED !!AlfilENANCE January 1980 NNIUltti UF LER Olt OUI' AGE flALFUNCT10N EQUll'f flint flAlfflENANCE NUf!BER CAUSli itESULT Col'ItECTIVE ACTION llCU 26-23 Corrective N/A Worn "O" Ring Nitrogen Leakage Replaced "0" Ring MR 79-1088 "B" Reactor Water Corrective N/A Worn Gaskets Leakage Replaced Caskets Cleanup Pump Suction MR 79-1139 Flange RilR Valve V10-81B Corrective Outage Worn Packing Leakage Repacked Valve MR 80-14 80-1 RilR Valve V10-25B Corrective N/A Worn Packing Leakage Adjus ted Packing MR 80-44 "A" Diesel Generator Corrective N/A Worn Packing Leakage Adjusted Packing Air Start Valve 91C MR 80-63 G
E
Page One of Two DOCKET NO. 50-271 UNIT Vermont Yankee DATE 800212 COMPLETED BY R. M. Sjogren TELEPHONE 617-366-9011 x2368 rep 0RT MONTH January, 1980 SU't!ARY OF OPERATING EXPERIENCES Highlights Vermont Yankee operated at 87.3% of rated thermal power for the month.
Gross electrical generation was 351,821 MRHe or 87.6% design electrical capacity.
Operating Summary The following is a chronological description of plant operations including other pertinent items of interest for the month:
1/1/80 At the beginning of the reporting period, the plant was generating at 99% of rated thermal power.
1/5/80 At 0545 commenced shutdown to repair leaking RHR valve V10-81B.
At 0922 the turbine was removed from the grid.
1/6/80 At 0045 repairs were completed and the reactor was critical. The '
turbine was phased into the grid at 1221.
1/10/80 At 0100 power was reduced to perform a control rod pattern adjust-ment.
At 0730 the adjustment was completed and a power ascension was initiated.
1/18/80 At 2300 power was reduced to perform turbine surveillance and a control rod pattern adjustment.
1/19/80 At 0430 the control rod pattern adjustment was completed and a power ascension initiated.
1/20/80 At 0530 a power reduction was initiated due to an indicated in-crease in turbine vibrations.
At 1205 the power reduction was terminated at 30% power.
At 1440 repairs were completed and a power ascension was initiated.
Page Two of Two DOCKET NO. 50-271 UNIT Vermont Yankee DATE 800212 COMPLETED BY R. M. Sjogren TELEPHONE 617-366-9011 x2368 REPORT MONTH January, 1980 SU.' NARY OF OPERATING EXPERIENCES 1/26/80 At 0100 a power reduction was initiated for a control rod pattern adjustment.
At 0900 the adjustment was completed and a power ascension initiated.
1/31/80 At 1200 a shutdown was initiated in response to orders from the Nuclear Regulatory Commission.
At 1709 the turbine was removed from the grid.
At the end of the reporting period, the plant was shutdown and cooled down.