ML19207A056

Engine Systems, Inc. - Part 21 Report 10CFR21-0125, Rev. 0, for a 10CFR21 Reportable Notification on a Signal Converter Transmitter

ML19207A056
Person / Time
Site:	Cooper
Issue date:	07/19/2019
From:	Darrell Roberts Engine Systems
To:	Office of Nuclear Reactor Regulation
References
10CFR21-0125, Rev 0
Download: ML19207A056 (5)

Text

1111 05: 13:33 p.m. 07-19-2019 1 /5 ENGINE SYSTEMS, INC.

175 Freight Road, Rocky Mount, NC 27804 Telephone: 252/977-2720 Fax: 252/446-1134 TELEFAX Date: July 19, 2019 Company: N~C Operations Center Fax Number: 301/816-5151 Verification No.:

• 301/816-5100

Reference:

Report No. 10CFR21-0125, Rev. 0 From: Dan Roberts Page: 1 of 5

Dear Sir:

Following this cover is a copy of our Report 10CFR21-0125; Rev.a, for a 10CFR21 reportable notifjcation on a* signal converter transmitter, PIN SCT/4-20MA/4-20MA/24DC/-LIM-TA[DCM]. This is a follow-up to our interim report 10CFR21-0125-INT, Rev. O, Issued on'June 5,.2019. Our evaluation determined that the deviation is reportable in accordance with 10CFR21 Part 21.

A copy of the 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, a fhlrr ENGINE SYSTEMS, INC.

Dan Roberts Quality Manager

/sJw

.Quality Performance With Pride

1111 05:13:49p.m. 07-19-2019 2 /5 ENGINE SYSTEMS, INC.

175 Freight Road, Rocky Mount. NC 27804 Telephone: 2521977-2720 Fax:: 252/446-1134 Report No. 10CFR21*0125 Rev. O: 07/19/19 10CFR21 REPORTING OF DEFECTS AND NON-COMPLIANCE COMPONENT: Signal Converter Transmitter P/N SCT/4-20MA/4-20MA/24DC/-LIM-TA[OCM]

SYSTEM: Steam Turbine Control CONCLUSION: Reportable in Accordance with 10CFR21

\-i-+-L-~,___

P~epared By:___,,...,... ._________

& Engineering Manager Reviewed By:----~=---~-------,;;;-=------

Quality Assurance Manager Date: 7 /J9/1q Quality Performance With Pride

1111 05:14:01 p.m. 07-19-2019 3 /5 Report No. 10CFR21-0125 Record of Revisions Page: 1 of 1 REV DATE PAGE DESCRIPTION 0 07/19/19 Initial issue.

1111 OS: 14:09 p.m. 07-19-2019 4/5 Report No. 10CFR21-0125 Revision: 0 Date: 07/19/19 Page: 1 of2

SUMMARY

On June q, 2019, Engine Systems Inc. (ESI) Issued Interim re.port 10CFR21-0125-INT, rev.O regarding an*

Identified deviation for which ESI wa1;1 unable to complete an evaluation within the 60-day requirement. Per the interim report, E:SI committed to complete the evaluation by July 31, 2019. The evaluation Is now complete and the deviation Is detennlned to be reportable in accordance with 10CFR Part 21.

Pursuant to 10 CFR 21.21(d)(4), ESI ls presenting the required Information as follows:

(i) Name and address of the Individual or Individuals informing the Commission.

John Kriesel Dan Roberts Engineering Manager Quality 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.

• Signal Converter Transmitter, PIN SCTl4-20MA/4-20MA/24DCI-LIM-TA[DCM].

(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 of failure to comply. *

• A power inverter transformer, Internal to the signal oonverter transmitter, failed shorted*. The transformer failure adversely affected .other circuit board mounted *components which prevented the device from functioning properly.

• The signal converter transmitter ls a component of a turbine control panel. Within the panel, the

• transmitter Is used to sense the customers remote speed setpoint 4-20 mA Input signal and convert the signal to an isolated 4-20 mA output signal which is transmitted to the turbine control.

The transmitter includes a limiting function where If the Input signal is below 4 mA, the minimum output Is limited to 2. 7 mA and If the 'Input signal is above 20 mA, the maximum output is limited to 21.3 mA. Since the signal converter transmits the customer's remote speed setpafnt Input to the turbine control, operabl/ity of the device is critical to operation of the RCIC turbine control system. Therefore, a failure of the signal converter would adversely affect the RCIC turbine control system and thus may affect the safe shutdown of the reactor. *

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

April 6, 2018

{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 faclllties or activities subject to the regulations in this part.

ES/Sales C-of-CDate Mfg Sada/

End User End User P.O. Qty Order . Number Cooper Nuclear Station Contract 09-69A 8001553 1 09128/2015 2379741 (supplied through Dresser-Rand) P.O. 200441 (D-R)

Notes: (1) The signal converter was installed In a control panel assembly PIN 8001553-01 {qty 1 per panel).

(2) This is the faned device; therefore, no other suspect devices are Installed In safety-related service.

1111 OS: 14:40 p.m. 07-19-2019

• S /5 Report No. 10CFR21-0125 Revision: 0 Date: 07/19/19 Page: 2of2 (vii) The corrective action which has been, Is being, or will be taken; the name of the lndlvldual or organization responsible for the action; and the length of time that has been or will be taken to complete the action.

For Cooper Nuclear:

The failed component has been removed and replaced with a spare transmitter from a dffferent batch. No further action ls necessary.

ForESI:

The previous design transformer (used in the failed transformer) was discontinued by transformer manufacturer in 2016 which required the signal converter transmitter manufacturer to source a new transformer. The new transformer has the same functionality with a slightly dffferent form factor which minimizes the potential for common cause failure with the original style transformer.

Therefore. no additional actions are required since a different transformer ls In current use. ES/

has included a verification of the cu"ent transformer design in the commercial grade dedication package. *

(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.

• NIA