GNRO-2002/00019, Annual Operating Report for 2001

Annual Operating Report for 2001

ML020600458
Person / Time
Site:	Grand Gulf
Issue date:	03/01/2002
From:	Bottemiller C Entergy Operations
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
GNRO-2002/00019, RG-1.16, Rev 4
Download: ML020600458 (8)

Text

March 1, 2002 U.S. Nuclear Regulatory Commission Washington, D.C. 20555 Attention:

Document Control Desk

Subject:

2001 Annual Operating Report Grand Gulf Nuclear Station Unit 1 Dncket No. 50-416 License No. NPF-29 GNRO-2002/00019 Ladies and Gentlemen:

Entergy Operations, Inc. is transmitting the Grand Gulf Nuclear Station (GGNS) Unit 1 Annual Operating Report for 2001.

This report is in accordance with the reporting program described in Regulatory Guide 1.16, Revision 4, Part C.l.b as modified by the NRC letter to GGNS dated May 25, 1987 (MAEC-87/0131).

Provided as attachments are:

1. A narrative summary of operating experience during the year 2001,

2.

Main Steam Line Safety Relief Valve challenges,

3.

A tabulated annual report of personnel exposure greater than 100 mrem/yr, and

4.

A summary of failed fuel indications/inspections.

This letter does not contain any commitments.

GO2001 9

March I,2002 GNRO-2002/00019 Page 2 of 2 If you have any questions, please contact Charles A. Bottemiller at (601) 437-6299 or Ann M. Townsend at (601) 437-6486.

Yours truly, Charles A. Bottemiller

Manager, Plant Licensing AMT:amt attachments:

cc:

Hoeg Levanway Reynolds Smith Thomas

1.

Summary Of Operating Experience

- 2001

2.

Main Steam Safety Relief Valve Challenges

- 200-l

3.

Person-rem Exposure

- 2001

4.

Failed Fuel Indications/Inspections

- 2001 T. L.

(GGNS Senior Resident)

(w/a)

D. E.

(Wise Carter)

(w/a>

N. S.

(w/a>

L. J.

(Wise Carter)

(w/a>

H. L.

(w/o)

Mr. E. W. Merschoff (w/2)

Regional Administrator U.S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011 U.S. Nuclear Regulatory Commission ATTN; Mr. S. P. Sekerak, NRR/DLPM (w/2)

ATTN:

ADDRESSEE ONLY ATTN:

U.S. Postal Delivery Address Only Mail Stop 07Dl Washington, D.C. 20555-0001 GO20019

Attachment I to GNRO-2002/00019 2001

SUMMARY

OF OPERATING EXPERIENCE The following is a summary of Grand Gulf Nuclear Station (GGNS)

Unit 1 operating experience for the 2001 calendar year.

During 2001, the reactor was critical for 8,147.g hours with the generator on line for 8,041.l hours.

Date 02/06/O 1 04/I 3/01 05/01101 08/07/O 1 08/23/01 08129/01 Cause & Corrective Action Core thermal power reduced to approximately 70% to take Heater Drain Pumps out of service for repairing the pump discharge header sample line break and power maintained at that level until 02/08/01 afternoon for repairing pump discharge valve (N23F520A) leak.

Core thermal power was reduced first and then reactor manually scrammed

@2000 to shut down for Refueling

1. I 1.

Refueling

1. I 1 continued until synchronization to grid on 05/05/01.

Steady, full-power operation was reached on 05/08/O 1.

Reactor automatic scram occurred at approximately 2017 upon fast CV closure when load reject relay picked up grid perturbation caused by Baxter Wilson plant tripping off grid because of lightning induced fire in switchyard.

The startup was somewhat delayed because the End-Of-Cycle Recirculation Pump Trip did not function as required.

Also, startup and subsequent operating data on Recirculation Pump B seal performance prompted a management decision to schedule a

plant shutdown on 09/06/01 to replace RP B seal.

Continued degradation in RP B seal performance caused increasing leakage flow and pump vibration, and prompted a

conservative decision from Management to advance the schedule for shutdown to replace the seal.

Reactor manually scrammed at approximately 0528.

Synchronized back to grid on 08/27/01 at approximately 1117 after seal replacement.

Problem with A Recirculation FCV Rotary Variable Differential Transformer (RVDT) prevented power ascension after shifting to high speed during startup following the RP B seal outage.

The reactor was manually scrammed to shut down for repairing A Recirc FCV RVDT.

Duration Time 0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> 412.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> 109.7 hours8.101852e-5 days <br />0.00194 hours <br />1.157407e-5 weeks <br />2.6635e-6 months <br /> 41.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> 101.8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> 54.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> GO2001 9

Attachment II to GNRO-2002/00019 2001 MAIN STEAM SAFETY RELIEF VALVE CHALLENGES There were no main steam line safety relief valve challenges occurring in 2001.

GO20019

Attachment III to GNRO-7~~7/flMll9 Page1 of3 GGNS UNIT 1 ANNUAL REPORT PERSON-REM EXPOSURE-2001 This section contains a tabulation of the number of station, utility and other personnel receiving exposures greater than 100 mrem/year and their associated man-rem exposure according to work and job function.

Also included is a tabulation of the number of personnel by exposure range.

GO20019

Entergy Operations, Inc.

Grand Gulf Nuclear Station P.O.

Box 756 Port

Gibson, MS.

39150 LICENSE:

NPF-29 Attachnent III to GNRO-2002/G0019 Page 2 of 3

Date:

28-FZB-2002 15:39 Regulatory Guide 1.16 Information End of Year Report 2001 Work and Job Function ROUTINE OPERATIONS AND SURVEILLANCE MAINTENANCE AND CONSTRUCTION OPERATIONS HEALTH PHYSICS SUPERVISORY ENGINEERING ROUTINE PLANT MAINTENANCE MAINl?ENANCE hND CONSTRUCTION OPERATIONS HEALTH PHYSICS SUPERVISORY ENGINEERING INSERVICE INSPECTION MAINTENANCE AND CONSTRUCTION OPERATIONS HEAITH PHYSICS SUPERVISORY ENGINEERING SPECIAL PLANT MAINTENANCE MAINTENANCE hNE CONSTRUCTION OPERATIONS HEALTH PHYSICS SUPERVISORY ENGINEERING WASTE PROCESSING MAINTENANCE hND CONSTRUCTION OPERATIONS HEALTH PHYSICS SUPERVISORY ENGINEERING REFUELING MAINTENANCE hND CONSTRUCTION OPERATIONS HEALTH PHYSICS SUPERVISORY ENGINEERING Number of Personnel

> 100 mrem Station Utility Contractor Cl 0

0 37 1

2 I.8 11 3

0 0

1 0

0 0

85 29 155 22 4

1 I.8 8

7 1

1 4

2 0

0 0

0 4

0 0

0 0

0 0

2 3

4 0

0 0

9 0

9 0

0 2

5 0

1 0

0 0

1 0

0 0

0 0

1 0

0 1

0 0

0 0

0 0

0 4

2 5

35 2

0 0

5 4

10 3

1 1

1 0

0 Total man-rem Station.

Utility contractor 0.112 0.048 0.364 9.428 0.414 0.871 4.676 3.363 1.430 0.654 0.276 0.545 0.682 0.006 0.009 25.507 11.761 57.052 5.927 1.065 0.403 4.801 2.202 2.921 1.255 0.531 1.309 1.421 0.166 0.005 0.007 0.000 2.732 0.000 0.000 0.000 0.000 0.004 0.006 0.418 0.643 1.827 0.000 0.000 0.000 3.363 0.635 6.932 0.501 0.008 0.753 1.266 0.093 0.290 0.282 0.006 0.154 0.281 0.000 0.014 0.086 0.000 0.000 0.224 0.000 0.000 0.419 0.000 0.191 0.000 0.000 0.000 0.023 0.000 1.059 0.840 0.768 11.953 0.907 0.000 0.123 0.942 0.710 1.977 0.716 0.443 0.146 0.381 0.158 0.001 Totals MAINTENANCE AND CONSTRUCTION 96 34 203 29.915 13.212 89.033 OPERATIONS 62 5

5 16.987 1.487 2.150 HEALTH PHYSICS 47 23 21 12.104 6.372 6.815 SUPERVISORY 6

5 10 3.325 1.899 3.981 ENGINEERING 4

0 4

2.788 0.330 1.088 Grand Totals 215 67 243 65.119 23.300 103.067

• The total radiation exposure of the above personnel constitutes 100%

of the site's exposure for the year.

Attachment III to GNRO-2002/00019 Page 3 of 3 The following is a break down of dose received due to Special Plant Maintenance.

m WP#- Description I Person-rem I

01-l 015 Minor Mods 2.130 01-l 025 Remote work for cleanout of RWCU Phase Separator Tank 1.787 t-6 l-l 026 Repair Leak On G33-F039 0.480 t 01-1032 CHANGE OUT 1 N22C004A AND 1 N22C004B PUMPS 0.035 1 IMPELLERS.

I I

Compound into N2 1 FX048

.- r Leaks on I-1038 Remove Insulation and InspectIldentifj Seal Steam 0.202 0.067 0.014 Generator.

01-l 043 FURMANITE/REPAIR LEAK ON SEAL STEAM GENERATOR 01-1044 Repairs of RHR A 01-1045 SSG repair 01-l 048 FURMANITE REPAIR OF N35F036A 01-l 053 Disassemble/Decon Valves G33F039/F040/F042/F104 01-1058 FURMANITE REPAIR OF N33F078D 0.114 0.750 0.047 0.143 0.072 0.016 01-1059 REPAIR LEAKING PROBE. TO INCLUDE 0.190 01-l 064 Furmanite Valve 1 N23F008C:

0.141 01-1066 Furmanite Repair of 1 N62F006B and 1 N62FX006 0.007 01-1068 Furmanite leak on 1 N62F024B

& Flange 0.038 01-1070 Rework Pump G17COOl 0.037 01-1077 N35F016A 0.078 1 01-1079 RWCU A Pump sea II replacement I

0.674 BIF052A 0.086 1

01-1081 Tighten Packing on Valve Nl 1 F3041 01-1082 Furmanite Repair of IN1 lFO52P 01-l 300 Replacement of CTMT Stc 1.007

!am Tunnel Cooler 1 M41C004 0.198 01-l 302 Reblacement of B Recirc pump seal 1.997 0 1 - 1305 tb minor maint I

^ ^^^

01-1407 HFTS Diving Operations l-l 5 18 thermal weld t-ii 01-l 519 Under Vessel Work, to include P45 Sump Work 01-1613 CUT OUT AND REPLACE VALVE G33F039 01-l 706 CUT OUT AND REPLACE VALVE G33F040.

01-l 800 tb valve work 1.553 1.038 1.096 0.263 14.578 I

Attachment IV to GNRO-2002/00019 2001 FAILED FUEL INDICATIONS/INSPECTIONS Cycle 10 startup and steady-state data indicate there are no fuel failures in the Grand Gulf core.

GO2001 9