ML18010A871
| ML18010A871 | |
| Person / Time | |
|---|---|
| Site: | Harris  |
| Issue date: | 11/02/1992 |
| From: | Vaughn G CAROLINA POWER & LIGHT CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| CON-NRC-791 HO-920149, NUDOCS 9211050233 | |
| Download: ML18010A871 (6) | |
Text
ACCELERATED DISTRIBUTIONDEMONSTRATION SYSTEM REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)
ACCE$SION NBR:9211050233 DOC ~ DATE: 92/ll/02 NOTARIZED: NO IL:50-400 Shearon Harris Nuclear Power Plant, Unit 1, Carolina TH.NAME AUTHOR AFFILIATION AUGHNiG.E.
Carolina Power 6 Light Co.
RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)
DOCKET ¹ 05000400
SUBJECT:
Responds to NRC 921001 ltr re violations noted in insp rept 50-400/92-17.Corrective actions:review of PCRs will be conducted to ensure that an adverse condition rept exists for program that identify adverse conditions.
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TITLE: General (50 Dkt)-Insp Rept/Notice of Violation Response NOTES:Application for permit renewal filed.
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S 05000400 RECIPIENT ID CODE/NAME PD2-1 PD INTERNAL: ACRS AEOD/DEIB AEOD/TTC NRR MORISSEAUiD NRR/DLPQ/LPEB10 NRR/DREP/PEPB9H NUDOCS-ABSTRACT OGC/HDS1 RGN2 FILE 01 EXTERNAL: EG&G/BRYCEgJ.H.
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S NOTE TO ALL "RIDS RECIPIENTS:
PLEASE HELP US TO REDUCE iVASTE! CONTACT THE DOCUMENT CONTROL DESK.
ROOM Pl-S7 (EXT. 504-2065) TO ELIMINATEYOUR NAME FROM DISTRIBUTION'ISTS FOR DOCUMENTS YOU DON'T NEED!
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Carolina Power & Light Company P.O. Box 165 ~ New Hill, NC 27562 G. E. VAUGHN Vice President Harris Nuclear Project Letter Number:
HO-920149 NOV -
2 592 Documen" Control Desk United States Nuclear Regulatory Commission Washington, DC 20555 NRC-791 SHEARON HARRIS NUCLEAR POWER PLANT DOCKET NO. 50-400 LICENSE NO. NPF-63 REPLY TO A NOTICE OF VIOLATION Gentlemen:
In reference to your letter of October 1,
1992, referring to NRC Inspection Report RII:
50-400/92-17, the attached is Carolina Power and Light Company's reply to the notice of violation identified in Enclosure l.
It: is considered that the corrective actions taken/planned are satisfactory for resolution of the violation.
Thank you for your consideration in this matter.
Very truly yours, Vice President Harris Nuclear Project MGW:kls Attachment cc:
Mr. S.
D. Ebneter (NRC-RII)
Mr. N. B. Le (NRC-NRR)
Mr. J.
E. Tedrow (NRC-SHNPP) 05v02~
MEM/HO-920149/1/OS1 92ii050233 92ii02 PDR ADOCK 05000400 DrtD
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Attachment to NRC-791 REPLY TO A NOTICE OF VIOLATION NRC INSPECTION REPORT NO. 50-400/92-17 VIOLATION 400 92-17-02 Re orted Violation:
10 CFR Part 50, Appendix B, Criterion XVI, requires measures be established to assure that conditions adverse to quality, such as failures, malfunctions, deficiencies, and deviations, are promptly identified and corrected.
Contrary to the above, conditions adverse to quality were not promptly corrected.
Improper diesel generator starting air quality was not corrected following issuance of Generic Letter 88-14 and initiation of Plant Change Request PCR 3995, dated November 14, 1988.
This problem contributed to an emergency diesel generator start failure on September 14, 1992.
This is a Severity Level IV violation (supplement I).
Denial or Admission The violation is admitted.
Reason for the Violation While performing test procedure OST-1823, lA-SA Emergency Diesel Generator (EDG) 18-month Operability Test Mode 5 and 6, the 'A'DG frequency failed to stabilize between 58.8 and 61.2 Hz in less than 10 seconds as required by acceptance criteria specified in OST-1823 and Technical Specification 4.8.1.1.2.f.6.b.
The shuttle valve supplying starting air pressure to the governor oil booster for opening the fuel racks was found to have failed.
Water and debris were found in the air lines.
The debris in the air lines is attributed to corrosion and wear products resulting from the inability of the air drying/moisture removal system to maintain the starting air dew point within acceptable limits.
To improve the moisture removal ability of the Starting Air System, PCR-3995 was initiated in November of 1988 to add an aftercooler and a moisture separator between the starting air compressors and the air dryers.
Due to a failure in properly prioritizing PCR-3995, the planned improvements were not implemented and the EDG test failure occurred on September 14, 1992.
Corrective Ste s Taken and Results Achieved:
The shuttle valve was subsequently replaced and the air lines were blown down with clean dry air.
OST-1823 was successfully performed on September 16, 1992.
The 'A'DG was capable of performing its.intended safety function up to the time of the test failure as demonstrated by satisfactory completion of previous surveillance testing.
At, the time of the test failure, the plant was in a mode in which only one diesel was required to be operable.
The 'B'DG was operable at all times in which the 'A'DG was inoperable.
MEM/HO-920149/2/OS1
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Attachment to NRC-791 REPLY TO A NOTICE OF VIOLATION NRC INSPECTION REPORT NO. 50-400/92-17 (Continued)
Corrective Ste s Taken to Avoid Further Violations:
As an interim measure, PCR;6584 will be implemented on both the 'A'nd 'B'DG during the current Refueling Outage C4 to provide additional air system filtration to critical diesel components..
Both the 'A'nd 'B'DG air lines will have been blown down with clean dry,. air prior to installation of these
- filters, PCR-3995 will be implemented on both the 'A'nd 'B'DG by March 31, 1993, to return the starting air dew point to within desirable limits.
To ensure that adverse conditions identified by a
PCR receive proper prioritization and management attention, the PCR process willbe removed from the list of approved Corrective Action Program (CAP)
Subprograms and an Adverse Condition Report (ACR) will be required for PCRs which document adverse conditions.
This program change will be completed by November 30, 1992.
A review of existing PCRs, not yet implemented, willbe conducted to ensure that an ACR exists for those which identify adverse conditions.
This review will be completed by November 23, 1993.
Date When Full Com liance Will Be Achieved Full compliance will be achieved by November 23, 1993.
MEM/HO-920149/3/OS1
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