ML20070A728
| ML20070A728 | |
| Person / Time | |
|---|---|
| Site: | Callaway  |
| Issue date: | 01/18/1991 |
| From: | Schnell D UNION ELECTRIC CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| ULNRC-2350, NUDOCS 9101280126 | |
| Download: ML20070A728 (3) | |
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January 18, 1991 U. S. Nuclear Regulatory Commission Document Control Desk Washington, DC 20555 ULNRC-2 3 50 Gentlemen:
REPLY TO NOTICE OF VIOLATION INSPECTION REPORT NO. 50-481/90017 CALLAWAY PLANT 1
1 Thic responds.to T.
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Martin's "05000483/LER-1990-016, :on 901124,reactor Trip Occurred on Low Steam Generator Level Which Resulted from Turbine Trip on Spurious [[system" contains a listed "[" character as part of the property label and has therefore been classified as invalid. High Level Signal.Caused by Vibration.Level Switch Inverted|letter dated December 21, 1990]],
.which transmitted a Notice of Violation for events discussed in j
Inspection Report 50-483/90017. Our response to the violation is presented-below.
None of-the material in the response is considered proprietary by_
Union Electric Company.
Statement of Violation 1ss a_ result of the inspection conducted on October 22 through 26 and-November-5 through 9, 1990, and in accordance with 10CFR
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Part 2,: Appendix C,
" General Statement of Policy-and-procedure-for.HRC Enforcement Actions'(1990)",-the following violation was identified:
Section III.J-of 10CFR.Part 50,cAppendix'R, requires emergency r
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lighting ' units 1with at least an-8 hour battery' power supply to_be-installed in all areac needed for operation of safe shutdown u
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--equipment and in access.and-egress: routes thereto.
Section 10.5 of Callaway's Supplemental-Quality Assurance _ Program
'for Fire 1 Protection requires that emergency lights be periodi-cally-inspected'and tested to ensure acceptable conditions.
-Contrary,to the above, as of-November 9, 1990,. emergency lights were_not beingimaintained or tested to ensure they;would function as designed. This resu?.ted in the failure of one light and ques-tionable operability of eleven others due to low electrolyte
. levels.
(h-This is a severity Level IV violation (Supplement 1).
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ULNRC-2 3 50
- i Currectivo actions that have been taken and the results achieved:
Work requests have been completed to correct the twelve fire protection emergency light problers. The failed light had low electrolyte and a blown DC output fuse, ten others had low elec-trolyte, the twelfth light had corrosion around the vent cap. The fuse was replaced on the failed light. Fluid was added as required to eleven lights. The corrosion around the vent cap was removed. Union Electric considers the emergency lights to be operational.
The correctivo actions that will be taken to avoid further violations:
i The current annual PM will remain unchanged. An additional PM for 1
emergency lighting will be written to check electrolyte level and verify light operation. The additional PM will be performed three times a year. Thus each light will be verified operational and the electrolyte level will be checked on a quarterly basis.
During PMs-the as-found condition of the lights will be recorded.
~ The frequency of PMs will continue to be evaluated and adjusted as required to maintain light operability.
The date when full compliance will be achioved:
Performance of the annual PMs should be completed by May 1, 1991.
The additional PM will be written and ready for implementation by July 1, 1991.
1 If you have any questions regarding this response, or if addi-tional information is required, please let me know.
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Very truly yours, A
q Donald F.
Schnell (I
CSP / pas cc:
A.
B.
Davis - Regional Administrator, USNRC Region III l
R.
L. Hague - Chief, Reactor Projects Section 3A, USNRC Region III o
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D. Lynch - USNRC Licensing Project Manager (2 copies) l USNRC Document Control Desk (original)
L Manager - Electric Department, Missouri Public Service Commission B.
L.
Bartlett - USNRC Senior Resident Inspector Shaw, Pittman, Potts, & Trowbridge l
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ULNRC-2 3 50 STATE OF MISSOURI )
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Donald F.
Schnell, of lawful age, being first duly sworn upon oath says that he is Senior Vice President-Nuclear and an officer of Union Electric Company; that he has read the fore-going document and knows the content thereof; that he has executed the same for and on behalf of said company with full power and authority to do so; and that the facts therein stated are true and correct to the best of his kn> iledge, information, and belief.
By Donald'F. ~Schnell
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Senior Vice President Nuclear SUBSCRIBED and sworn to before me this /8 day of 3#""4"7',
1991.
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