GO2-17-156, Transmittal of 10 CFR 21.21 (d)(4) Notification, GE-Hitachi Relays HMA124A2

Transmittal of 10 CFR 21.21 (d)(4) Notification, GE-Hitachi Relays HMA124A2

ML17249A692
Person / Time
Site:	Columbia
Issue date:	09/06/2017
From:	Javorik A Energy Northwest
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
GO2-17-156
Download: ML17249A692 (4)

Text

ENERGY Alex L. Javorik Columbia Generating Station P.O. Box 968, PE04 NORTHWEST Richland, WA 99352-0968 Ph. 509.377.8555 IF. 509.377.4150 aljavorik@energy-northwest.com September 6, 2017 G02-17-156 10 CFR 21 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555-0001

Subject:

COLUMBIA GENERATING STATION, DOCKET NO. 50-397 10 CFR 21 NOTIFICATION

Dear Sir or Madam:

Transmitted herewith is a 10 CFR 21 Notification for Columbia Generating Station. This report is submitted pursuant to 10 CFR 21.21 (d)(3)(ii). This information was initially reported to the Nuclear Regulatory Commission Operations Center on August 17, 2017 via Event Notification#52913.

The enclosure provides the information required by 10 CFR 21.21 (d)(4).

There are no commitments being made to the Nuclear Regulatory Commission by this letter. If you have any questions or require additional information, please contact Ms.

D.M. Wolfgramm, Regulatory Compliance Supervisor, at (509) 377-4792.

Executed on this ' fJ.-, day of fi epf-e I

mb~Y' , 2017 A. L. Javo

• Vice President, Engineering

Enclosure:

10 CFR 21.21 (d)(4) Notification, GE-Hitachi Relays HMA 124A2 cc: NRC Region IV Administrator NRC NRA Project Manager NRC Senior Resident lnspector/988C CD Sonoda- BPA/1399 WA Horin - Winston & Strawn

GO2-17-156 Page 1 of 3 10 CFR 21.21(d)(4) Notification GE-Hitachi Relays HMA124A2 (i) Name and address of the individual or individuals informing the Commission.

Alex Javorik Vice President, Engineering Columbia Generating Station Energy Northwest PO Box 968 Richland, WA 99352 (ii) Identification of the facility, the activity, or the basic component supplied for such facility or such activity within the United States which fails to comply or contains a defect.

Facility:

Columbia Generating Station PO Box 968 Richland, WA 99352 Basic Component:

General Electric Nuclear Instantaneous Auxiliary Relay Type HMA124A2 (iii) Identification of the firm constructing the facility or supplying the basic component which fails to comply or contains a defect.

General Electric - Hitachi Nuclear Energy Americas LLC 3901 Castle Hayne Road Wilmington, NC 28401 (iv) Nature of the defect or failure to comply and the safety hazard which is created or could be created by such defect or failure to comply.

Contrary to the outline figure of the panel drilling and internal connections of the HMA124A relay in the GE instruction manual, two relays supplied as basic components were found with the back plate mounted incorrectly. The incorrect configuration of the back plate resulted in the terminal numbers to be mis-aligned to the designed configuration. However, because the internal wiring was as per design, relays installed with this configuration would be mis-wired.

The substantial safety hazard which could be created by the incorrectly configured back plate is the failure of the basic component to energize when

GO2-17-156 Page 2 of 3 required. Two potential conditions could occur if the incorrectly configured back plate is not corrected:

- the relay would not have the internal coil wired to the correct part of the control circuitry and would not be energized when required

- the relay would not have the contacts wired to the correct part of the control circuitry and would not energize, or would de-energize other control devices when required.

(v) The date on which the information of such defect or failure to comply was obtained.

The assessment for Part 21 was completed on August 12, 2017, and determined that the identified deviation constituted a defect in accordance with 10 CFR 21.3.

An officer of the company was notified of the defect and Part 21 reporting requirement on August 15, 2017.

Notification to the Nuclear Regulatory Commission of the defect was completed on August 17, 2017 via Event Notification#52913, by the Manager of Regulatory Affairs as delegated by the Vice President of Engineering.

(vi) In the case of a basic component which contains a defect or fails to comply, the number and location of these components in use at, supplied for, being supplied for, or may be supplied for, manufactured, or being manufactured for one or more facilities or activities subject to the regulations in this part.

Two relays supplied as basic components were identified with the defect, neither of which was installed in any plant equipment.

Although the defective relays were never installed in plant equipment, the HMA124A2 relays are approved for use in the following locations:

High Pressure Core Spray System - 23 components Low Pressure Core Spray System - 7 components Main Steam System - 57 components Reactor Core Isolation Cooling System - 25 components Residual Heat Removal System - 27 components

GO2-17-156 Page 3 of 3 (vii) The corrective action which has been, is being, or will be taken; the name of the individual or organization responsible for the action; and the length of time that has been or will be taken to complete the action.

The defect was easily detected by Maintenance craft utilizing standard calibration practices that are performed on all plant-installed relays. The non-conforming relay was originally identified prior to installation while performing calibration of the relay; a new non-defective relay was calibrated and installed.

Station staff evaluated the remaining relays and verified the configuration of the back plates. One additional relay was found out of configuration and was removed from warehouse storage. All actions were completed the same day the issue was identified.

(viii) Any advice related to the defect or failure to comply about the facility, activity, or basic component that has been, is being, or will be given to purchasers or licensees.

Do not solely rely on the terminal numbers on the back plate when wiring the relays.

(ix) In the case of early site permit, the entities to whom an early site permit was transferred.

Not applicable.