ML073030464

Enertech Notification of Potential Part 21 Reportable Condition for Enertech Cartridge Solenoid Valve

ML073030464
Person / Time
Site:	Surry, Waterford, San Onofre
Issue date:	10/25/2007
From:	Mckown K Enertech
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML073030464 (2)

Text

. 1012512007 U.S. Nuclear Regulatory Commission OperationsCenter Event Report Paze I General Information or Other (PAR) Event# 43748 Rep Org: ENERTECH Notification Date/ Time: 10/25/2007 19:10 (EDT)

Supplier: ENERTECH Event Date / Time: 10/25/2007 (PDT)

Last Modification: 10/25/2007 Region: 4 Docket #:

City: BREA Agreement State: Yes County: License #:

State: CA NRC Notified by: KEVIN McKOWN Notifications: CHUCK CAIN R4 HQ Ops Officer: STEVE SANDIN ROBERT HAAG R2 Emergency Class: NON EMERGENCY VERN HODGE (email) NRR 10 CFR Section:

21.21 UNSPECIFIED PARAGRAPH POTENTIAL 10CFR PART 21 REPORTABLE CONDITION FOR ENERTECH CARTRIDGE SOLENOID VALVE The following notification was received via fax:

"This submittal provides initial notification to your office that we have opened an evaluation for a potential reportable condition under 10CFR Part 21. Based on technical data provided by the San Onofre Power Plant, two (2) Enertech normally energized, normally open, cartridge solenoid valves, partnumber C9113S, installed on PME dump valves have not operated within the closure time design parameters. Upon investigation SCE determined higher than expected levels of contamination, internal oxidation and pitting collectively effected the valves response time. This valve was introduced to the industry in Dec 2004. Enertech is working closely with plant personnel to determine the cause of this condition, determine a resolution, and prepare a formal Evaluation Report within the next 50 days. If at any time during the evaluation process, a defect is discovered, we will provide an amended notification to this communication.

"No other Power Plants have reported similar problems to Enertech. The solenoid valve under evaluation has multiple safety related applications. The following plants will be contacted if a reportable condition exists: SCE, STP, KHNP, Entergy (Waterford), and Dominion (Surry)."

6/l

Oct 25 2007 3:15PM HP LRSERJET 3330 p. l U Solztions for Today.. Standards of Tomorrow (714) 528-2301 2950 Birch Street, Brea, CA 92821-6235 FAX (714) 528-0128 Curtiss-WrightFlow Control Corporation.

October 24, 2007 Document Control Desk U.S. Nuclear Regulatory Commission Washington DC 20555

SUBJECT:

" Potential 10CFR Part 21 reportable condition for Enertech cartridge solenoid valve.

This submittal provides initial notification to your office that we have opened an evaluation for a potential reportable condition under 10CFR Part 21. Based on technical data provided by the San Onofre Power Plant, two (2) Enertech normally energized, normally open, cartridge solenoid valves, part number C9113S, installed on PME dump valves have not operated within the closure time design parameters. Upon investigation SCE determined higher than expected levels of contamination, internal oxidation and pitting collectively effected the valves response time. This valve was introduced to the industry in Dec 2004. Enertech is working closely with plant personnel to determine the cause of this condition, determine a resolution, and prepare a formal Evaluation Report within the next 60 days. If at any time during the evaluation process, a defect is discovered, we will provide an amended notification to this communication.

No other Power Plants have reported similar problems to Enertech. The solenoid valve under evaluation has multiple safety related applications. The following plants will be contacted if a reportable condition exists: SCE, STP, KHNP, Entergy (Waterford), and Dominion (Surry).

Res, e tfully, Kevin McKown General Manager Enertech, Curtiss-Wright Flow Control Doc #: 07 SCE Solenoid Valve Issue-NRC Ltr 1