ML23146A001

EN 56538 - Engine Systems Inc and Brunswick

ML23146A001
Person / Time
Site:	Brunswick
Issue date:	05/24/2023
From:	Darrell Roberts Engine Systems
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
56538, 10CFR21-0135
Download: ML23146A001 (1)

Text

1111 03:59:05 p.m. 05-24-2023 1 /5 ENGINE SYSTEMS, INC.

175 Freight Road Telephone: 252/977-2720 Rocky Mount, NC 27804 Fax: 252/446-1134 TELEFAX Date: May 24, 2023 Company: NRC Operations Center Fax Number: 301/816-5151 Verification No.: 301/816-5100

Reference:

Report No. 10CFR21-0135, Rev. 0 From: Dan Roberts Page: 1 of 5

Dear Sir I Madam:

Following this cover is a copy of our report 10CFR21-0135, Rev. 0, for a 10CFR21 reportable notification on Woodward EGB-35P governor/

actuator with foreign material, P/N 9903-722, S/N 18847017.

A copy of this report will be mailed to the NRC Document Control Desk and to our affected nuclear customer.

Should you have questions, please let us know.

Sincerely, ENGINE SYSTEMS, INC.

~(klJ-Dan Roberts Quality Manager

/sjw Quality Performance With Pride

1111 03: 59: 21 p.m. 05-24-2023 2 /5 ENGINE SYSTEMS, INC.

175 Freight Road, Rocky Mount, NC 27804 Telephone: 252/977-2720 Fax: 252/446-1134 Report No. 10CFR21-0135 Rev. 0: 05/24/23 10CFR21 REPORTING OF DEFECTS AND NON-COMPLIANCE COMPONENT: Woodward EGB-35P Governor/Actuator with Foreign Material Part Number 9903-722 Serial Number 18847017 SYSTEM: Emergency Diesel Generator CONCLUSION: Reportable in Accordance With 10CFR21 Prepared By: ----.-'"""- ~------~---------- Date:

Qngineering Manager Reviewed By: _ _ ___;;_a,.......;;_

__ {kjJ=---=--L-C::=...------

Quality Manager Quality Performance With Pride

1111 03:59:36 p.m. 05-24-2023 3 /5 Report No. 10CFR21-0135 Record of Revisions Page: 1 of 1 REV DATE PAGE DESCRIPTION 0 05/24/23 Original Issue.

1111 03:59:45 p.m. 05-24-2023 4 /5 Report No. 10CFR21-0135 Revision: 0 Date: 05/24/23 Page: 1 of 2 Pursuant to 10 CFR 21.21(dlC4), ESI is presenting the required information as follows:

(i) Name and address of the individual or individuals informing the Commission.

Dan Roberts John Kriesel Quality Manager Engineering Manager Engine Systems Inc. Engine Systems Inc.

175 Freight Rd. 175 Freight Rd.

Rocky Mount, NC 27804 Rocky Mount, NC 27804 (ii) Identification of the basic component supplied within the United States which fails to comply or contains a defect.

Woodward Governor, PIN 9903-722, SIN 18847017 (iii) Identification of the firm supplying the basic component which fails to comply or contains a defect.

Engine Systems Inc. (ES/)

(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.

An EGB-35P governor/actuator (governor) installed on a customer's emergency diesel generator failed soon a-rt.er installation. Investigation revealed a piece of foreign material, a loose buffer plug, inside the governor that caused the failure. Since the governor is used to maintain fuel rack position of the diesel engine, failure of the governor would prevent the emergency diesel generator set from performing during a safety-event.

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

March 28, 2023 (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.

Customer ES/Sales Part Serial ESIC-of-C Customer PO Order Number Number Date Duke Energy-00655050 8002096 9903-722 18B47017 06130/2015 Brunswick Nuclear Plant Table 1: EGB-35P Governor/Actuator Affected by Foreign Material (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.

For Brunswick Nuclear Plant:

No action required. The affected governor has been returned to ES/.

ForESI:

The governor will be refurbished under ESl's 10CFR50 Appendix B program and certified for continued use at Brunswick Nuclear Plant. To prevent reoccurrence, ES/ will revise the dedication requirements to enhance existing foreign material inspection practices to include a visual inspection where the buffer plug was located within the governor. The revisions are expected to be complete within 30 days but in all cases prior to future shipments.

1111 04:00: 14 p.m. 05-24-2023 5/5 Report No. 10CFR21-0135 Revision: 0 Date: 05124123 Page: 2 of2 (viii) Any advice related to the potential 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.

The governor uses a buffer plug to retain the buffer piston and springs in the subgovernor case. All components required of the governor assembly were accounted for; the buffer plug discovered inside the governor was an extra component. Circumstances during original dedication activities in 2015 required disassembly of the governor. It was during this process the additional buffer plug was introduced Into the governor. The governor tested satisfactorily and remained operable until the cumulative effect of contact between the metal buffer plug and internal governor gearing produced metal shavings (additional foreign material) of a sufficient amount to cause failure of the governor.