ML20091J153

Interim Deficiency Rept (Rdc 104(84)) Re Single Failure Criteria in MSIV Circuitry.Initially Reported on 840424. Event Under Investigation by Ge.Next Rept Will Be Submitted by 840713

ML20091J153
Person / Time
Site:	Perry
Issue date:	05/24/1984
From:	Edelman M CLEVELAND ELECTRIC ILLUMINATING CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
(RDC-104(84)), NUDOCS 8406050411
Download: ML20091J153 (1)

Text

7 o! U, j, n 's n v

• ^

3' i -;,' i:

fTU, s iS % ~L.N 1. . - .; . <+

P.O. Box 5000 - CLEVEl.AND, OHlo 44101 - TELEPHONE (216) 622-9800 - ILLUMINATING BLDG. - 55 PUBLICSQUARE Serving The Best Location in the Nation MURRAY R. EDELMAN VICE PRESIDENT NUC LE A R Mr. James G. Keppler Regional Administrator, Region III Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, Illinois 60137 RE: Perry Nuclear Power Plant Docket Nos. 50-440; 50-441 Main Steam Isolation Valves Logic [RDC 104(84)]

Dear Mr. Keppler:

This letter serves as the interim report pursuant to 10CFR50.55(e) on the deficiencies concerning the single failure criteria in the Main Steam Isolation Valves (MSIV) circuitry not being met. Mr. R. Knop of your office was notified on April 24, 1984, by Mr. B. D. Walrath of The Cleveland Electric Illuminating Company (CEI) that this problem was being evaluated per our Deviation Analysis Report 178.

This report contains a description of the deficiency, planned corrective action, and the planned date for our next report.

Description of Deficiency During the safety system functional capability review performed for CEI by CDS Associates, it was identified that single failure criteria in the MSIV circuitry may not be met relative to relay K7D in panel H13-P694 (contacts T1, M1, T3, M3).

Planned Corrective Action General Electric Company, our NSSS supplier, is currently investigating this condition. We anticipate the next report on this subject to be submitted by July 13, 1984.

Picase call if there are additional questions.

S.tncerel ,

1 1

Murr y R. Edelman Vice President Nuclear Group MRE:pab cc: Mr. M. L. Gildner U.S. Nuclear Regulatory Commission NRC Site Office c/o Document Management Branch Washington, D.C. '3555 Director Office of Inspection and Enforcement Records Center, SEE-IN U.S. Nuclear Regulatory Commission Institute of Nuclear Power Operations Washington, D.C. 20555 1100 Circle 75 Parkway, Suite 1500 Atlanta, Georgia 30339 8406050411 840524 f gDRADOCK05000 b() / /