ML18219C170

Response to IE Bulletin Nos. 77-02 & 77-03

ML18219C170
Person / Time
Site:	Cook
Issue date:	11/10/1977
From:	Dolan J American Electric Power Service Corp
To:	James Keppler NRC/RGN-III
References
IEB-77-002, IEB-77-003
Download: ML18219C170 (3)

Text

AMER)CAN ELECTRIC PQV/ER Service Corporation AEP 2 Broad~ay, Xno York, K (2/2) 422 4800 Y. J0004 JOHN E DOLAN Senior Zrccuticchcc PccciCcnc Enginccri ng November 10, 1977 Donald C. Cook Nuclear Plant Unit Nos. 1 & 2 Docket Nos. 50-315 and 50-316 DPR No. 58 CPPR No. 61 Mr. J. G. Keppler, Regional Director U. S. Nuclear Regulatory Commission Office of Inspection and Enforcement Region III 799 Roosevelt Road Glen Ellyn, Illinois 60137

Dear Mr. Keppler:

This letter is in response to your letters of September 12, 1977, which transmitted IE Bulletin Nos. 77-02 and 77-03 to us. The attached enclosure is submitted in fulfillment of the requirement to respond to these IE Bulletins.

Very truly yours, ohn E. Dolan Enclosures cc: R. C. Callen G. Charnoff P. W. Steketee R. Walsh R. J. Vollen II Qp fg R W. Jurgensen $ 977 D. V. Shaller Bridgman po g

Res onse to IE Bulletin 77-02 for D. C. Cook Units 1 & 2 RFC-12-2129 was written to initiate an inspection program for all Westinghouse type AR latching relays. As of November 8, 1977 the following inspections have been completed:

l. All relays installed in Unit 2.

2. All relays in spare parts and in construction and operations stores.

3. One of the two trains in Unit 1.

The inspection of the remaining train of Unit 1 will be done at the next outage.

The inspections to date have detected no unacceptable relays installed in Unit 2. Three relays manufactured in October, 1973 were located in Unit 1 and were replaced. Several unacceptable relays were located among the spare relays in stores and these relays have been segregated in a hold area to prevent their use.

Enclosure to John E. Dolan's letter dated November 10, 1977.

Res onse to IE Bulletin 77-03 for D. C. Cook Units 1 6 2 In the initial review of the subject IE Bulletin we believed that we had complied with the functional require-ments of the proposed test. Closer examination of the test and its intended results reveals that the tests actually performed do not precisely duplicate the conditions of the proposed test scheme.

The tests proposed in the Westinghouse NSD-TB-77-11 will be performed before November 22, 1977 and will be repeated at monthly intervals.

nclosure to John E. Dolan's letter dated November 10, 1977.