ML20211P231
| ML20211P231 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 10/16/1997 |
| From: | Hughey W ENTERGY OPERATIONS, INC. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| GNRO-97-00100, GNRO-97-100, NUDOCS 9710200107 | |
| Download: ML20211P231 (8) | |
Text
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y r: lions, Inc.
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Pm1 Gitsm. M3 33150 Td (014374470 W.K.Hughey wa rw ou, October 16, 1997 i
U. S. Nuclear Regulatory Commission Mail Station P1-37 Washington, D.C. 20555 Attention:
Document Control Desk
Subject:
Grand Gulf Nuclear Station Docket No. 50-416 License No. NPF 29 Special Report 97-002 Valid Failure of Division 2 Emergency Diesel Generator Due to a Jacket Water Leak GNRO-97/00100 Gentlemen:
On September 16,1997, operators performed a routine monthly surveillance run on the Division 2 Emergency Diesel Generator (EDG). Shortly before completion of the surveillance run, a jacket water leak developed at a Dresser Couplingjoint. The leak was estimated to be about half a gallon per minute, lt wasedeterphined that the half gallon per minute leak would prevent the EDG from compisting its design seven day run without operator action. As a result, the Jacket water leak was declared a valid failure of the Division 2 EDG.
The jacket water leak was repaired and the EDG was successfully retested and returned to operable status, in addition, a ifferent design will be installed on the Division 1 and 2 EDGs to address jacket water leaks.
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9710200107 971016 PDR ADOCK 05000416 S
GNRO-97/00000 Page 2 of 3 The valid failure of the Division 2 EDG was the second valid failure in the last 25 valid tests and the third valid failure in the last 100 valid tests. The EDG was
- unavailable for 15 hours1.736111e-4 days <br />0.00417 hours <br />2.480159e-5 weeks <br />5.7075e-6 months <br /> and 55 minutes. This failure is being reported pursuant to Grand Gulf Technical Requirements Manual sect'on 7.7.2.2 Yours truly, 7
WKH/JEO cc:
Ms. J. L. Dixon Herrity, GGNS Senior Resident (w/a)
Mr. N. S. Reynolds (w/a)_
Mr. L. J. Smith (Wise Carter) (w/a)
Mr. H. L. Thomas (w/o)
Mr. J. W. Yelverton (w/a)
Mr. J. N. Donehew, Project Manager (w/2)
Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Mall Stop 13H3 Washington, D. C. 20555 Mr. E. W. Merschoff (w/a)
Regional Administrator U. S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011
______m_.________
t GNhtO-97/00000 Page 3 of 3 bec:
Mr. R. E. Brinkman (w/a)
Mr. C. W. Elissesser (wla)
Mr. D. R. Franklin (w/a)
Ms. C. W. Gunn (wla)/(2)
Mr. J. E Owens (w/a)
Mr. C. H. Quick (w/a)
Mr. C. D. Stafford (w/a)
Mr. G. D. Swords (w/a)
Mr. T. H. Thurmon (w/a)
Required Reading Coordinator (w/a)
File (LCTS/RPTS) (w/a)
File (NS&RA)(w/a)
File (Central)(w/a)(8 )
INPO Records Center (wla) 700 Galleria Parkway Atlanta, Georgia 30339-5957 s
r i
CONCURRENCE REVIEW FORM SECTION 1 RESPONSE DUE: 10/16/97 ONRO 97/00100 (NRC Required)
SU11 JECT:
Valid Failure of Emergency Diesel 12 Due to a Jacket Water Leak gst Y 10/14/97 Drew Bottemiller 10/14/97 James Owens NRC Document Preparer /Date Responsible Sect., Supt./Date Commitment Concurrence SECTION 11 LOCATIONS COMMITMENT PRIMARYlSECONDARY DUE DATE Page 1 Replace Dresser Couphngs using new design Maintenance Paragraph 2 h-30-78 This letter contains commitments requiring procedural implementation YES ( ) NO (X)
UFSAR Potential Impact Classification SECTION 111 UFSAR impact:
No X Yes IfYes:
A)
List UFSAR sections / tables / figures affected and describe nature of UFSAR impact.
B)
UFSAR revision affected:
Current Future C)
Additional comments:
\\
d 1
l SECTION IV Concurrence Review-Required Y
N
()
(X)
VP, Operations GGNS/Date
()
(X)
General Manager, Plant Operations /Date
()
(X)
Director, Design Engineering /Date (X)
(-)
8/3
/
Director, Nuclear Safety &
Regylat Affairs /Date (X)
()
i J
Idedager, Performance &
l System Engineering /Date IXi Qk- - =[
6 Manager, Maintenance /Date 0
r/PA fl0-t'l"ly V
l l
l l
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VERIFICATION / CERTIFICATION FORM A.
Description SR 97-002:
Valid Failure on Emergency Diesel Generator 12 Due to a Jacket Water Leak B.
Verification The undersigned acknowledges that the technical content of the information described in section A above has been verified to be accurate and complete by review of the subject information and supporting material as listed below:
(A) CR 1997-085100 & 01 (B) - CR 1997 0899 (C) Work Order #s 191757,191701, and 194338 (D) GI Al 'l7[O/f 2 o.
Signature 18
/d84V
/ October 7,1997
/
Submittal Originator / Date Peer Concurrence Review rformed by:
Date: October,1997 bb'
.. /d"IN7 b[f J./s /r/
Signature / O/erations Signature / P&SE
_m k
\\O-N T Mnature / NS&RA C.
Certification Date: October.1997 The undersigned certifies that a verification review has been performed to confirm that the technical content of the information :ontained in this submittal is accurate and complete.
Signature
' 0'N M 3 Subtrittal Originator
GRA)ND GULr NUCLEAR PfATION SURVEILLANCE PROCEDURE b
06-OP-1P15-v-0011 R;visign 100 Attachment V Page 1 of 2 Page RTYPE B6.61 XRef DIESEL GENERATOR START IDG DIESEL 100t SEEET sa..n mELaw.u For All Diesel Generator Failures D b I 2-5.5.1 Diesel Generator No. :
5.5.2 Sequential start No.:
80 7 5.5.3 Type of failure (valid, invalid):
Ya fib 5.5.4 Failures in last 25 valid tests:
1 l
Failures in last 100 valid tests:
3 5.5.5 Cause cf fai,}ure:
3 a tkt 4 WoheY' leak cd- (Irr CS 6 C Coup lina A 4-4e p 0 + P n a r n e.
nn Nec4h
- 2. 5 /nc h li ne no, n n in C ombkwo%
& c b/ v.
(he M x.
A ne1\\ % oce mina k h J
Indke F Wh IMk rePdWd w,%
CorrebtivI 433A. ra dak n 5.5.6 measures t aio so1 Rtm *k oc,1 J-ses p e r4e rm, a +o co rrurm fcA K re Daired.
(LL n # t12 - 106 5
- Ma ct'.9 -IL 'ti / cM OT E,+e p ; 9-l6-92 / 20 4 5 w ets w ri He n
~fe d eewmewt-DN G D/ C T N o r +e 6 Tuke+-wW'J6 awd.
e Imk Length of time diesel generator unavailable:
I 9 E rn e'n.
5.0.7 5.5.8 Current surveillance test intervals blb At>\\
5.5.9 Test interval in conformance with Tech Spec 3.8.1-1:
YE 6 l
5.5.10 Data Sheet III attached for each failure during troubleshooting:
N/4 Notify'the surveillance Coordinator if the AfM
/
periodicity needs to be changed.
Who Notified Date If failure is >/= 7 in last 100 valid tests, coroplete 5.5.11 through 5.5.14:
5.5.11 Corrective measures, taken or planned, to increase reliability of the diesel generators d/k H i \\T ECh_PU D\\ P ROC ED\\ 06 \\0 P 7 5V11. 7.5
e SURVEILIANCE PROCEDURE (MAND GULF NUCLEAR STATION a'
06-OP-1P15-V-0011 R:visien 100 Attachment V Page 2 of 2 Page RTYPE B6.61 XRef DIESEL m m ahTCR START LOG DIESEL 1016 SMEET sAnars smaA1=u 5.5.12 Assessment of existing reliability of electric power t E F c7uipment:
5.5.13 Basis for continued plant operation, if planned:
A.I[k 5.5.14 Data sheets attached documenting last 100 valid tests:
N M.
5.5.15 Completed by (name/date): (b
/ 9"/[' 97 o
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