ML100610675
| ML100610675 | |
| Person / Time | |
|---|---|
| Site: | Hope Creek  |
| Issue date: | 02/23/2010 |
| From: | Hale R United Controls International |
| To: | Office of Nuclear Reactor Regulation, NRC Region 1 |
| References | |
| 45723 | |
| Download: ML100610675 (9) | |
Text
0212412010 U.S. Nuclear Regulatory Commission Operations Center Event Report Paffe I General Information or Other (PAR)
Event#
45723 Rep Org: UNITED CONTROLS INTERNATIONAL Notification Date I Time: 02/24/2010 16:42 (EST)
Supplier: THOMAS & BETTS Event Date I Time: 04/23/2009 (EST)
Last Modification: 02/24/2010 Region:
1 Docket #:
City: TUCKER Agreement State:
Yes County:
License #:
State:
GA NRC Notified by: ROBERT HALE Notifications: WAYNE SCHMIDT R1DO HQ Ops Officer: JOE O'HARA PART 21 GRP EMAIL Emergency Class: NON EMERGENCY 10 CFR Section:
21.21 UNSPECIFIED PARAGRAPH FAULTY LOGIC BOARD FOR CYBEREX 20 KVA INVERTER MODEL AC The following notification was received via fax:
"On or around April 23rd, 2009, PSEG Nuclear LLC at Hope Creek Nuclear Station notified United Controls International (UCI), that they had encountered a problem with a Logic Power Supply circuit board (p/n: 90 974313) after installing it in their safety related inverter. This circuit board was a Logic Power Supply printed circuit board used in a Cyberex 20 KVA Inverter model AC.
"Upon inspection, PSEG determined that a jumper was missing from the circuit board by comparison to the originally removed board.
"The cause of this issue was due to an incorrect bill of materials (BOM) for the circuit board at the manufacturing location.
The affected facility is the Hope Creek Nuclear Power Station. Nine boards were all shipped to PSEG at Hope Creek Nuclear Power Station.
"Corrective Actions:
"The manufacturer, Thomas & Betts, has corrected the Bill of Materials (BOM) to show the jumper installed on this circuit board. Additionally, UCI has enhanced its inspection schedule for these boards by performing a component level inspection of each board against the BOM.
"Corrective Actions to be taken:
"There are four suspect circuit boards that have been shipped to PSEG (Hope Creek Nuclear Station) that need to
02/24/2010 U.S. Nuclear Regulatory Commission Operations Center Event Report Page 2 General Information or Other (PAR)
Event #
45723 be inspected for the correct jumper. If found to be missing the jumper, then these boards need to be returned to UCI for jumper installation and retesting."
VFB/24/2010/WED 04:49 PM UNITED CONTROLS FAX No. 7704961422 P.001 United Controls International
,f-I 5139 S. Royal Atlanta Drive Tucker, Georgia 30084 (770) 496 1406 tel (770) 496 1422 fax February 24, 2010 TI. S. NuClear Regulatory Conmnission Document Control Desk Washington D.C. 20555-0001
Subject:
1 OCFR21 Reporting of D6fects mad Non-Complimace Thomas & Betts Printed Circuit Board PiN 90-41-974313 The eholosed report addresses a reportable notification fox a Thomas & Betts Printed Circuit Board PIN 90-41-974313, A copy of the report.has been mailed to our affected nuclear customers.
Please sign below, acknowledging receipt of this report, and Tettui a copy to at the addr'ess above or via fax to (770) 496 1422 within 10 working days after receipt.
Sincerely, Robert B. Hale President etnclosure Report 20100224. Notification _90-41-974313, 4 pates Received by Date www.,unitedcontrols.com
FEB/24/2010/WED 04:49 PM UNITED CONTROLS FAX No', 7704951422 P.
002 r
United Controls Internatiohal 6139 S. Royal Atlanta Drive Tuiker, Georgia 30064 (770) 496 1408 tel (770) 496 1422 fax 10CFR2,1 REPORTING OF DEFECTS AND NON-COMPLIANCE.:
COMPONENT:
SYSTEM:
CONCLUSION:
REPORT ID:
Thomas & Betts Printed Circuit Board P/N 90-41-974313 Inverter-Logic Power Supply Board Defect reportable in accordance with 1 OCFR21 20100224 Notification90-4.1-974313 File; 20100224 Notificatioa_90-41-974313.doe CR Reviewed By: nwkf!t* 6WLZ*-C, Engineering Reviewed By:
"-I Date: Q4110)
Date:
2 2.
t Date:
2.t /(
Ur-I Engineang U
Approved By::_
Quality Assurance www.unitedcontrols.com
FEB/24/2010/WED 04:50 PM UNITED CONTROLS FAX No, 7704961422 P. 003 20100224 Notification 90-41-974313 Page 2 of 6 COMPONENT:
Thomas & Betts Printed Circuit Board Thomas & Betts P/N: 90-41-974313 PURPOSE:'
This report documents the installation of a faulty logic power supply board for.Cyberex 20 KVA Inverter model AC.
SUMMARY
On or around April 23rd, 2009, PSEG Nuclear LLC at Hope Creek Nuclear Station notified United Controls International (UCI), that they had encountered a problem with a Logic Power Supply circuit board (p/n: 90-41-974313) after installing it in their safety related inverter. The circuit board had been supplied by UCI under previous purchase order 4500304127. This circuit board was a Logic Power Supply printed circuit board used in a Cyberex 20 KVA Inverter model AC, which is now owned and supplied by Thomas & Betts (TNB) and manufactured by their sub-contractor, RBB Systems'.
Upon inspection, PSEG determined that a jumper was missing from the circuit board, by comparison to the originally removed board. Additionally a second logic power supply circuit board (not installed in the plant) was also determined to be missing the same jumper. This issue was initially evaluated by UCI in June of 2009 and determined not to be a reportable defect and an isolated event. However, after a similar issue was identified with the same manufacturer (TNB), UCI has determined that this issue should be documented as a 1 OCFR2I reportable defect.
The circuit board, with the missing jumper was installed in Hope Creek's safety related inverter and resulted in incorrect voltages, which prevented the inverter from being placed into service. It is therefore not likely that this board could be installed and left in the parent cpmponent, and subsequently.
placed into service due to post installation maintenance testing. However, if the board were to be installed, while missing the jumper, the inverter would not operate properly and would be considered inoperable.
The cause of this issue was due to an incorrect bill of materials (BO3V) for the circuit board at the manufacturing location.
AFFECTED USERS:
PSEG Nuclear LLC - Hope Creek Nuclear Power Station According to UCI records, a total of 10 Logic Power Supply circuit boards (TNB p/n 90-41-974313) were supplied by TNB to UCL,One of these boards was a sample board and remains at UCI. The other nine boards were all shipped to PSEG at Hope Creek Nuclear Power Station. The current status of these naie circuit boards is shown in table 1 below.
United Controls International
FEB/24/2010/WED 04:50 PM UNITED CONTROLS FAX N5.7-7049-61422 P.
004 Page S of 6
.20100224 Notificadon_90-41-974813 Table 1 Part number UCI S/N Comments.
Identified by PSEG to be missing jumper. Returned to UCI in 90-41-974313 1808-1-1 June of 2009. Jumperwas installed and board was retested and returned to. PSEG.
Identified by PSEG to be missingj umper. Returned to UCI in 90-41-974313 2496-6-1 June of 2009. Jumper was'installed and board was retested and-returned to PSEG.
90-41-974313 2710-2-1 Shipped to PS30 on 3/18/08. Indeterminate as to whether jumper is installed or not at this tie.
Shipped.to PSEG on 9130/08. Indeterminate as to whether 90-41-974313 3047-15-]
jumper is installed br not at this time.
90-41-974313 003451-07-0001 Shipped to PSEG on 9/25/09. Verified by UCI.that jiumper was correctly installed on board.
90-41-974313 00345 1-07-O002 Shipped to PSEG on 9/25/09. Verified by UCI that jumper was correctly installed on boa*tc.
90-41-974313 003451-07-0003 Shipped to PSFG on 9/25/09. Verified by UCI that jumper was correctly installed on board.
90-41-974313
.003255-02-0601 Shipped to PSB3 on 5/19/09. Verified byJ UCI that jumper was missing on board.
90-41-974313 003255-02-0002 Shipped to PSE0 on 5/19/09. Verified by UCI that jumper was missing on board.
I United Controls International
F/24/2010/WED 04:50 PM UNITED CONTROLS FAX No, 7704961422 P, 005 20100224 Notification_90-41-974313
.Page 4 of 6 CORRECTIVE ACTIONS Preventive Actions Taken:
The manufacturer, Thomas & Betts, has corrected the Bill of Materials (BOM) toshow the jumlper
.ihstalled on this circuit board. Additionally, UCI has enhanced'its inspection.procedure for thete'boqard by performing a component level inspection of each board against the BOM,..
Corrective Actions Taken:'-
Of the nine potentially affected circuit boards shown in the table above:
- 1.
Two circuit boards have been r-eturned to UCI by PSEG and have had the jumipers added and.
retested, These two were returned toPSEG.
- 2.
Three circuit boards have been verified to have the jumper correctly installed.
Corrective Actions to be taken:
.1.
There are four suspect circuit boards that have been.hipped to PSEG (-lope Creek Nuclear.
Station) that need to be inspected for the correct jumper per attachment 1. If found to be missing the jumper, then the boards need to be returned to UCI for jumper installation and retestirng.
ATTACtIFIENTS
- 1. Jumper inspection procedure for Cyberex logic power supply board p/n: 90-41-974313 United Controls International
FEE/24/2010/WED 04:51 PM UNITED CONTROLS FAX No'. 770,49.61422 P.
005 20100224 Notification_90-41-974313 Page 5 of 6 Attachment I Page 1 of 2 JUMPER INSPECTION PROCEDURE FOR CYBEREX LOGIC POWER SUPPLY BOAR]D PIN: 90-41-974313 S1. See figure I below fora picture of the Cyberex logic power supply board, p/n: 9,0-41-974313.
- 2. Inspect the board for a jumper at location "WJ". See figure 2 below.:
- 3. ifjumper at location "W.Y" is missing, as shown in figure 3, then notify UCI and. an RMA will be issued for therepair.
gure 1, Logic Power Supply Circuit Board United Controls International
'FEB/24/2010/WED 04:52 PM UNITED CONTROLS7 FAX No,7704961422 P.
007 20100224 Notification 90-41-974313 Page 6 of 6.
Attachment I Page 2 of 2 JX3MPER INSPECTION PROCEDURE FOR CYBER:EX LOGIC POWER SUPPLY BOARD P/N: 90-41-974313 gure 2, Jumper "WJ" coniecfly installed United Controls Intemational