ML20113H428

Comment Commending Proposed Suppl One to GL 83-28 4.2.3 & 4.2.4 Closing All GL 83-28 Actions for Callaway But Staff Conclusion Should Be Expanded

ML20113H428
Person / Time
Site:	Callaway
Issue date:	07/23/1992
From:	Passwater A UNION ELECTRIC CO.
To:	NRC
References
FRN-57FR29540, RULE-PR-MISC 57FR29540, GL-83-28, ULNRC-2670, NUDOCS 9207310047
Download: ML20113H428 (2)

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UNION July 23, 1992 Euzenuc 53 U.S. Nuclear Regulatory Commission ATTN: Chief, Rul.es and Directives Review Branch Washington, D.C. 20555

Dear Sir:

ULNRC-2 6 7 0 PROPOSED SUPPLEMENT 1 TO GENERIC LETTER 83-2 8

References:

1. 57FR29540-57FR29543 dated July 2, 1992

2. ULNRC-1678 dated November 13, 1987 Union Electric offers the following comments on the proposed Supplen.ent 1 to Generic Letter (GL) 83-28, as noticed in the Federal Register per Reference 1.

While Union Electric-commends the proposed closure of items 4.2.3 and 4.2.4 of GL 83-28, which would close all GL 83-28 actions for Callaway, che staff's conclusion should be expanded. The current conclusion, " . . . the staff concludes that licensee actions .in response to items 4.2.3 and 4.2.4 of GL 83-28 are not necessary.", does not reflect the WOG-sponsored life cycle testing documented in WCAP-10835. The staff's conclusion should mention that, in light of improved RTB reliability, no further licensee actions are required. The background section of the supplement should acknowledge the testing documented in WCAP-10835 and describe the issue behind the staff's original reluctance to accept this WCAP, i.e. the lack of thermal aging prior to the life cycle testing. The arguments presented in Reference 2 have been accepted somewhat by the staff, in view of the proposed supplement's reference to licensee's contentions " . . . that further life testing of the RTBs is not necessary because of their extensive quality assurance, preventive maintenanc.e. and surveillar.ce testing programe . ";

however,_this background is not discussed in the supplement.

With these clarifications addressed, Union Electric strontgly endorses issuance of this supplement.

Union Electric appreciates the opportunity to comment on this subject. If you have any questions on the above, please contact us.

Very truly v rs,

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9207310047 920723 '

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cc: T. A. Baxter, Esq.

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

Washington, D.C. 20037 -!

Dr. J. 0..Cermak  !

CFA, Inc. i 18225-A Flower Hill Way l Gaithersburg, MD 20879-5334 R. C, Knop  ;

Chief, Reactor Project Branch 1 U.S.. Nuclear Regulatory Commission ,

Region III 799 Roosevelt Road Glen Ellyn, Illinois 60137 f

--Bruce Bartlett  !

Callaway Resident Office  :

U.S. Nuclear Regulatory Commission i RR#1-

Steedman, Missou'i r 65077

. L. R. -Wharton (2) I Office of Nuclear.. Reactor Regulation  ;

U.S. Nuclear Regulatory Commission  ;

1. White.- Flint, North, Mail Stop 13E21 j 11555 Rockville Pike  !

- Rockville, MD 20852 I

. - Manager, Electric Department

' Missouri Public Service Commission P.O. Box 360J Jefferson City,-NO 65102 h

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