ML17142A322

Part 21 - Potential Defect in Grayboot Socket Contacts

ML17142A322
Person / Time
Site:	Vogtle
Issue date:	05/15/2017
From:	Bledsoe S, Gill T Curtiss Wright Flow Control Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
52756
Download: ML17142A322 (2)

Text

,J 0511512017 U.S. Nuclear Regulatory Commission Operations Center Event Report Pagel Part 21 (PAR) Event# 52756 Rep Org: CURTISS WRIGHT FLOW CONTROL CO. Notification Date I Time: 05/15/2017 18:55 (EDT)

Supplier: CURTISS-WRIGHT Event Date I Time: 03/16/2017 (CDT)

Last Modification: 05/15/2017 Region: 1 Docket#:

City: HUNTSVILLE Agreement State: Yes County: License #: N/A State: AL NRC Notified by: TONY GILL Notifications: MIKE ERNSTES R2DO HQ Ops Officer: JEFF HERRERA PART 21/50.55 REACTORS EMAIL Emergency Class: NON'EMERGENCY 10 CFR Section:

21.21 (a)(2) INTERIM EVAL OF DEVIATION PART 21 - POTENTIAL DEFECT IN GRAYBOOT SOCKET CONTACTS The following part 21 was received via email:

"This letter is issued to provide an interim notification of a potential defect in certain lots of Grayboot socket contacts supplied with EQ qualified Grayboot Connector Kits. On March 16, 2017, Curtiss-Wright, Nuclear Division, Huntsville Operations was contacted by Georgia Power Vogtle Nuclear Power Plant concerning a potential defect where the socket contact tines were in a relaxed state.

"Although we have completed some testing and verification activities, additional testing is in progress now and will provide necessary information to complete our evaluation. Current testing will be completed and final conclusions made by May 31, 2017.

"At this time, based on test results, evaluations and operating experience, Curtiss Wright is confident that any potentially affected Grayboot Assemblies will continue to perform their intended safety functions. As such, if the final recommendation is to replace the potentially defective socket contact, this can be accomplished during subsequent routine maintenance activities.

"This notification is being made to comply with 60 day interim reporting requirements as defined in 10 CFR 21.21 (a)(2).

"For additional information, pleaseicfontact: Saim.iel Bledsoe, EGS*Products Engineering Manager (1-256-690-7852) or Tony Gill, EGS and Trentec Quality Assurance Manager (1-256-426-4558)."

CURTISS CB Nuclear Division

. *. IGffT 120, 125 & 330 West Park Loop Huntsville, AL 35806 T: 256.72.2.85001256.$95.1250 wwW.curtisswright.com/NuclearDivision (File No.: CWNHuntsvillelOCFR21-2017-0l)

May 15, 2017 To whom it 1riay concern:

This letter is issued to provide an interim notification of a potential defect in certain lots of Grayboot socket cont~cts supplied with EQ qualified Grayboot Connector Kits. On March 16, 2017, Curtiss-Wright, Nuclear Division, Huntsville Operations was contacted by Georgia Power Vogtie Nuclear Power Plant concerning a potential defect where th¢ socket contact tines were in a relaxed state. *

• Although we have .completed some testing and verification activities, additional testing is in progress now and will provide necessary information to complete our evaluation. Current testing will be completed and final conclusions

.

made by May. 31,', 2017.

At this time; based on test results, evaluations and operating experience, Curtiss Wright is confident that any potentially affected Grayboot Assemblies will continue to perform their intended safety functions. As such, if the final recommendation is to replace the potentially defective socket contact, this can be accomplished during subsequent routine maintenance activities.

This notification is being made to comply with 60 day interim reporting requirements as defined in 10 CFR 21.2l(a)(2).

For additional information, please contact Satnuel Bledsoe, EGS Products Engineering Manager (l.,.2S6-690-7852) or Tony Gill, EGS and Trentec Quality Assurance Manager (l-'256-426-4558).

Sincerely, Samuel Bledsoe Tony Gil Engineering Manager, EGS Products Quality Assurance Manager, EGS and Trentec Curtiss-Wright Nuclear Division Curtiss~ Wright Nuclear Division 125 West Park Loop NW, Htintsville, AL 35806 125 \Vest Park Loop NW, Huntsville, AL 35806 sbledso:@.@cu1tiss\vright.com: ~gill<@curtis~\\'right . com