ML19324C429

Responds to NRC Bulletin 88-010,Suppl 1, Nonconforming Molded-Case Circuit Breakers. Bulletin Provisions as Clarified by Suppl Met & Documentation Associated W/Review Being Maintained at Facility

ML19324C429
Person / Time
Site:	Callaway
Issue date:	11/07/1989
From:	Schnell D UNION ELECTRIC CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
IEB-88-010, IEB-88-10, ULNRC-2101, NUDOCS 8911160313
Download: ML19324C429 (4)

Text

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- 190t Grctiot Strect '

Post 0tfoce Bis 149 e .* St. lova. Missouri 63166 y 314 554-2650 I

N vember 7, 1989 canalu. u nen i UVION Ete6rnic tc" ^""'-

, $33 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Mail Station PI-137 ,

Washington, D.C. 20555  ;

Gentlsmen: ULNRC-2101 v

DOCKET NUMBER 50-483' CALLAWAY PLANT NONCONFORMING MOLDED-CASE CIRCUIT BREAKERS

References:

1) NRC Bulletin No. 88-10, dated November 22, 1988

2) ULNRC-1959, dated i March 31, 1989 ,

3) NRC Bulletin No. 88-10,  ;

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Supplement 1, dated 1 August 3, 1989 l

Reference 1 required licensees to identify and .

trace to the circuit breaker manufacturer (CBM),.all i molded-case circuit breakers (MCCBs) stored for use in safety-related applications. Union Electric provided C the results of this review to the NRC as Reference 2.

Based on a preliminary review of responses to Bulletin 88-10, the MRO staff issued Referenco 3 which requested licensees to:

1. Review written reports submitted to the NRC i in accordance with Bulletin 88-10 and verify -

that the, responses meet the hulletin l provisions as clarified by the bulletin  !

supplement, and;

2. Prepare and retain documentation for possible audit that indicates that the l review has been performed as requested.

Union Electric has reviewed the Bulletin 88-10  :

response (Reference 2) against the clarifications a contained in the bulletin supplement. As a result the l review of breaker traceability was expanded to include original spares purchased under the construction program which were received after August 1, 1983. The j traceability of all safety-related MCCBs stored at i l

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Callaway Plant as of September 1, 1989.was established  !

to a Certificate of Conformance (C of C) to e.ither the CBM or a 10CFR50, Appendix B qualified supplier.  ;

Surveillances were performed to estaolish traceability  !

to the CBM in cases'where the C of C was tracecble to  ;

the qualified supplier. i i

Therefore, Union Electric has reviewed the j!

bulletin supplement and verified that the bulletin I provisions as clarified by the supplement have been l met as described in this letter =and in Reference 2. (

Documentation associated with this review is being l maintained at Callaway Plant and is available for >

review by the NRC staff.

If you have any questions concerning this letter, i'

please contact me.

Very truly ours, Donald F. Schnell WEK/kea  !

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) STATE OF MISSOURI ) J

) SS CITY OF ST. LOUIS ) l l

Donald F. Schnell, of lawtul 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 foregoing i 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 knowledge, information nnd belief.

By .?k j Donald F. Scfinell Senior Vice President Nuclear SUBSCRIBED and sworn to before me this day of [ba/u,198f

/ b @/g DARBARA PhAF NOTARY PUBtlC, STATE 0F MISSOURI MY COMMISSION E*PIRES APRIL 22, 1993 ST. LOUIS COUNTY ,

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,4 cc Gerald Charnoff, Esq.  :

'Shaw, Pittman, Potts & Trowbridge 2300 N. Street', N.W.

Washington, D.C. 20037 Dr. J. O. Cermak CFA, Inc. .

4 Professional Drive (Suite 110)

Gaithersburg, MD 20879 x

R. C. Knop Chief, Reactor Project Branch 1 'l U.S. Nuclear Regulatory Commission Region III ,

799 Roosevelt Road Glen Ellyn, Illinois 60137 ,

Bruce Little Callaway Resident Office . -

U.S. Nuclear Regulatory Commission

, RRil-Steedman, Missouri 65077 Tom Alexion (2) l Office of Nuclear Reactor Regulation

• U.S.: Nuclear Regulatory Commission 1 White Flint, North, Mail Stop 13E21 11555 Rockville Pike Rockville, MD 20852 -

Manager, Electric Department Missouri Public Service Commission  ;

P.O. Box 360 ,

Jefferson City, MO 55102 5