ML20195H490: Difference between revisions
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PO Bax33198 | Duke Ibugr Compant Htt B T& | ||
PO Bax33198 Vice President Charlotte, NC 28242 Nuclear Production (704)373 4531 | |||
,DUKEPOWER November 16, 1988 U.S. Nuclear Ibgulatory Comission Document Control Desk mshiryton, D.C. | |||
20555 | |||
==Subject:== | ==Subject:== | ||
McQLire Nuclear Station, thit 1 Docket No. 50-369 Technical Specifications 4.8.1.1.3 and 6.9.2 Gentlemen: | McQLire Nuclear Station, thit 1 Docket No. 50-369 Technical Specifications 4.8.1.1.3 and 6.9.2 Gentlemen: | ||
Pursuant to Technical Specification | Pursuant to Technical Specification (T.S.) | ||
4.8.1.1.3, | 6.9.2 as specified by T. S. | ||
4.8.1.1.3, find attached a special report concerning an incident involving Diesel Cenerator IA on October 17, 1988. | |||
Very truly yours, | Very truly yours, | ||
!WA Ital B. Tucker SEL/359/mf xc Mr. M.L. Ernst Merican Nuclear Insurers Acting Regicnal Adm., Ibgion II c/o Dottie Shenmn, 7NI Library U.S. Nuclear Regulatory Comissicm The Dcchange, Suite 245 101 Marietta St., NW, Suite 2900 270 Famington Avenue Atlanta, a 30323 Farmington, CT 06032 INPO Ibcords Center Mr. Darl ! bod Suite 1500 U.S. Nuclear Ibgulatory Comissicm 1100 Circ 16 75 Parkway Mfice of Nuclear Beactor Regulation Atlanta, E 30339 m shington, D.C. | |||
20555 MsM melear Otnsultants Mr. P.K. Van Doorn 1221 Avenue of the Mericas NPC Resident Inspectcr ikw York, NY 10020 McGuire Nuclear Station 8811300431 881116 PDR ADOCK 05000369 S | |||
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r-Document Control Desk | r-Document Control Desk November 16, 1988 Page 2 bxc: B.W. Bline D.R. Bradshaw R.C. Futrell S.A. Gewehr R.L. Gill R.M. Glover (CNS) | ||
November 16, 1988 Page 2 bxc: B.W. Bline D.R. Bradshaw R.C. Futrell S.A. Gewehr R.L. Gill R.M. Glover (CNS) | |||
G.W. Hallman C.L. Harlin (ONS) | G.W. Hallman C.L. Harlin (ONS) | ||
A.D. Harrington (PSD) | A.D. Harrington (PSD) | ||
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Maintenance was performed on the pressure switch agraximately a mcmth prior to the trip and the associated wire was not adequately terminated, cat. sing looseness. | DUKE PCHElR C01PANY McGuire Naclear Station Diesel Generator lA Special Report On Octrber 17, 1988 at 0855, Diesel Generator (D/G) 1A was started for an operability test (Start Attspt No. 698) and subsequently tripped. thit I was at Mode 5, 0% power at the time of the trip. | ||
A work request was written to identify the problem. | |||
It was deternined that the diesel engine trip occurred 20 seconds after starting due to a loose wire on a jacket water punp discharge pressure switch. Since the pressure switch is bypassed in the esergency mode, the trip was an invalid failure. | |||
Maintenance was performed on the pressure switch agraximately a mcmth prior to the trip and the associated wire was not adequately terminated, cat. sing looseness. | |||
'Ihe pressure switch is covered by a preventive maintenance program with a two year frequency. | |||
After determining the cause of the trip, the inmediate corrective action taken was re-termination of the wire and calibration of the pressure switch. Due to the isolated nature of t:ds incident no se;,equent actions are planned. | After determining the cause of the trip, the inmediate corrective action taken was re-termination of the wire and calibration of the pressure switch. Due to the isolated nature of t:ds incident no se;,equent actions are planned. | ||
After a test run for troubleshooting following corrective action, the diesel generator operability test was restarted at 1535 (start #700) and successfully empleted. Diesel generator lA was declared operable at approximately 1730 on October 17, 1988. | After a test run for troubleshooting following corrective action, the diesel generator operability test was restarted at 1535 (start #700) and successfully empleted. Diesel generator lA was declared operable at approximately 1730 on October 17, 1988. | ||
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Latest revision as of 18:18, 10 December 2024
| ML20195H490 | |
| Person / Time | |
|---|---|
| Site: | McGuire  |
| Issue date: | 11/16/1988 |
| From: | Tucker H DUKE POWER CO. |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| 5314K, NUDOCS 8811300431 | |
| Download: ML20195H490 (3) | |
Text
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~ -.
a.
Duke Ibugr Compant Htt B T&
PO Bax33198 Vice President Charlotte, NC 28242 Nuclear Production (704)373 4531
,DUKEPOWER November 16, 1988 U.S. Nuclear Ibgulatory Comission Document Control Desk mshiryton, D.C.
20555
Subject:
McQLire Nuclear Station, thit 1 Docket No. 50-369 Technical Specifications 4.8.1.1.3 and 6.9.2 Gentlemen:
Pursuant to Technical Specification (T.S.)
6.9.2 as specified by T. S.
4.8.1.1.3, find attached a special report concerning an incident involving Diesel Cenerator IA on October 17, 1988.
Very truly yours,
!WA Ital B. Tucker SEL/359/mf xc Mr. M.L. Ernst Merican Nuclear Insurers Acting Regicnal Adm., Ibgion II c/o Dottie Shenmn, 7NI Library U.S. Nuclear Regulatory Comissicm The Dcchange, Suite 245 101 Marietta St., NW, Suite 2900 270 Famington Avenue Atlanta, a 30323 Farmington, CT 06032 INPO Ibcords Center Mr. Darl ! bod Suite 1500 U.S. Nuclear Ibgulatory Comissicm 1100 Circ 16 75 Parkway Mfice of Nuclear Beactor Regulation Atlanta, E 30339 m shington, D.C.
20555 MsM melear Otnsultants Mr. P.K. Van Doorn 1221 Avenue of the Mericas NPC Resident Inspectcr ikw York, NY 10020 McGuire Nuclear Station 8811300431 881116 PDR ADOCK 05000369 S
PNV t
r-Document Control Desk November 16, 1988 Page 2 bxc: B.W. Bline D.R. Bradshaw R.C. Futrell S.A. Gewehr R.L. Gill R.M. Glover (CNS)
G.W. Hallman C.L. Harlin (ONS)
A.D. Harrington (PSD)
P.R. Herran S.S. Kilborn (W)
J.J. Maher P.B. Nardoci A.R. Sipe (MNS)
R.O. Sharpe (MNS)
G.b. Swindle 5urst K.O. Thomas W.H. Taylor V.B. Wrnor J.S. Elrren R.L. Wei)er J.W. Willis QA Tech. Services NRC Coordinator (EC 12/55)
MC-515-04 Ee/, of (24) 1
[
V
=a I
DUKE PCHElR C01PANY McGuire Naclear Station Diesel Generator lA Special Report On Octrber 17, 1988 at 0855, Diesel Generator (D/G) 1A was started for an operability test (Start Attspt No. 698) and subsequently tripped. thit I was at Mode 5, 0% power at the time of the trip.
A work request was written to identify the problem.
It was deternined that the diesel engine trip occurred 20 seconds after starting due to a loose wire on a jacket water punp discharge pressure switch. Since the pressure switch is bypassed in the esergency mode, the trip was an invalid failure.
Maintenance was performed on the pressure switch agraximately a mcmth prior to the trip and the associated wire was not adequately terminated, cat. sing looseness.
'Ihe pressure switch is covered by a preventive maintenance program with a two year frequency.
After determining the cause of the trip, the inmediate corrective action taken was re-termination of the wire and calibration of the pressure switch. Due to the isolated nature of t:ds incident no se;,equent actions are planned.
After a test run for troubleshooting following corrective action, the diesel generator operability test was restarted at 1535 (start #700) and successfully empleted. Diesel generator lA was declared operable at approximately 1730 on October 17, 1988.
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