ML091520256
| ML091520256 | |
| Person / Time | |
|---|---|
| Site: | North Anna  |
| Issue date: | 05/29/2009 |
| From: | Bolio K ASCO Valve |
| To: | Office of New Reactors, Office of Nuclear Reactor Regulation, NRC/RGN-II |
| References | |
| 45105 | |
| Download: ML091520256 (7) | |
Text
0512912009 U.S. Nuclear Regulatory Commission Operations Center Event Report Paze I General Information or Other (PAR) Event# 45105 Rep Org: ASCO VALVE INCORPORATED Notification Date / Time: 05/29/2009 11:54 (EDT)
Supplier: ASCO VALVE INCORPORATED Event Date / Time: 04/29/2009 (EDT)
Last Modification: 05/29/2009 Region: 1 Docket #:
City: FLORHAM PARK Agreement State: No County:' License #:
State: NJ NRC Notified by: KAREN BOLIO Notifications: GEORGE HOPPER R2DO HQ Ops Officer: HOWIE CROUCH TOM HERRITY (email) NRR Emergency Class: NON EMERGENCY OMID TABATAI (email) NRO 10 CFR Section:
21.21 UNSPECIFIED PARAGRAPH PART 21 FOR MISSING PARTS ON ASCO SOLENOID VALVES The following information was obtained from ASCO Valve QA Engineering via facsimile:
On 4/24/09 ASCO Engineering was made aware of a non-conformance in the valve assembly area. During the assembly of a solenoid valve, part number NPEFKX8300141EG 10688 125/DC, the valve assembler noticed that the valve was missing an insulating barrier and a wiring label used with screw terminal coils. Neither item was included on the valve Bill of Materials.
Purchase orders were reviewed and it was determined that North Anna Nuclear Power Station had purchased two of the subject valves. ASCO notified North Anna on April 27, 2009.
ASCO has taken measures to prevent future occurrences.
MAY-20-09 FRI 11:22 AM ASCO VALVE Q, A. FAX NO. 3 P. 01 9-9FI .... *.112 ~L S0WiV ~ ~ O.... . 01 ,
A1V Valve Inc.
50 Hanover Road Valve Karen Bolio QA Engineering Tel: (973) 966-2049 Florham Park, NJ 07932 Fax: (973) 966-2551 Tel: 973-966-2000 E-Mail: karen.bolio(iemerson.com Fax: 973-966-2628 WEBSITE: www.ascovalve.com Pages Including Cover Page; 6 TO: NRC FAX: 301-816-5151 COMPANY: DATE: May 29, 2009
SUBJECT:
TIME: 11:49 Please see attached Part 21 notification.
Thank you Karen Bolio QA Secretary i
If Ii o cev ~lpgso hsfx iaect 'i u-o ~'I &o VQA Dept Fax: FAX If you did 110treccivc 01 Pages Of t1lS RX,p ease c0l (973) 960 or 23
MAY-29-09 FRI 11:22 AM ASCO VALVE Q. A. FAX NO. 3 P. 02 4,
rI',MERSON, ASCO Valvo, Inc.
50 lane M, R .ad FIt ,am Par6, NJ 07932 LUSA T 9*?*2 606 2000 F 69731369-2626 WYww.QivneenumaIItics.corni May 28, 2009 NRC Documents Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-001 Subject- Missing insulating barrier and label on two (2) ASCO NPEFKX8300141EG 10688 125/DC solenoid valves Ref A - AREVA letter to Dominion Virginia Power - North Anna dated 4/27/09 RefrB- ASCO letter to Chris Marsh - ARE VA dated 5/7/09 Gentlemen:
We enclose information relating to a missing component and label on two valves shipped by ASCO. The customer has been notified.
ASCO does not have adequate knowledge of the actual installation and operating conditions of these valves to determine whether their malfunction could create a "substantial safety hazard" as defined in 10CFR21.3. We furnish this infonnation to inform you of our investigation results, corrective action to date and cUstomer notification.
Background- On 4/24/09 ASCO Engineering was made aware of a non-conformance in the valve assembly area. During the assembly of a solenoid valve, part number NPFKX8300141 EG 10688 125/DC, the valve assembler noticed that the valve was missing an insulating barrier. Ref Fig 1. Engineering reviewed the bill of materials (BOM) for the valve and confinred that the insulating barrier (p/n 032818-004) was not listed on the BOM. In addition a wiring label (p/n 230195-001) used with screw terminal coils was also not included in the BOM.
A SCO Investigation Results - ASCO conducted a review of bills of material for all nuclear products with screw terminal coils, Based on the results of this search it was dclcrmincd that lhis non-conformance was limited to this one catalog number valve.
ASCO reviewed the sales history for this catalog number and determined that the valve had previously been supplied on I order of 2 valves. Serial #'s F767468-1 & 2 I
MAY-29-09 FRI 11:23 AM ASCO VALVE Q. A. FAX NO. 3 P. 03 Interim Action These valves were supplied to AREVA on 9/23/08. Areva was verbally notified on 4/27/09 of the non-conformance. Areva reviewed their sales history of this product and identified that the valves had been shipped to Dominion Virginia Power - North Anna.
Areva noti fled the customer on 4/27/2009. ref A. ASCO provided Areva with a written notification on 5/7/09. ref B.
Impact on Performance- The insulating barrier is used on ASCO valves supplied with screw terminal coils. The barrier provides an electrical insulation between the screw terminals of the coil and the metallic solenoid housing. The screw terminals of the coil are intended to serve as junction point for the field wire and the coil. If the screw terminals were to come in contact with the housing while the valve was energized there would be an electrical short resulting in a breaker / fuse trip. This would interrupt power being supplied to the valve and the valve would shift to the de-energized position.
Corrective Action - Dominion Virginia Power - North Anna advised that one of the valves had been installed and one was still in their stock room area. The valve in the stock room was evaluated and confirmed to be missing the barrier, This valve is being returned and will be repaired at ASCO. Dominion Virginia Power - North Anna indicated that the installed valve will be evaluated during an upcoming outage. ASCO has recommended that a repair kit be installed at which time the barrier and wire label can be properly installed.
ASCO determined that the barrier was missing from the valve because it was not listed on the BOM and not supplied with the valve during assembly, Further investigation identified that when the valve components were being selected, the engineer modeled the BOM based on a design that does not use the barrier and label. In order to prevent future occurrences, ASCO has added a secondary verification whenever BOMs for new valves are created in order to verify that the correct parts have been selected.
2
M1AY-29-09 FRI 11:23 AM ASCO VALVE Q, A. FAX NO. 3 P. 04 Figure 1.
1/" or 3/4" conduit hub (1,2" oondulL hub shown)
- soleioid vahe (typixcl)
Label is affixed to iJSCFIELD WiRE TH-AT1 RATED 1D50'C OR GREATER FOR housing assembly / COIrINuOWS DJJfY AND THAT IS
/ QUALIF$FOFOR ALL .YPECrED SERVICE CONDITIONS INCLUDING IL ::OSTULATED P/ Ar...CI.DE.i.".-I CONDITIONS J Should you wish to discuss this further or obtain any additional information please let us know. Should any additional information become available we will forward it to you.
Very truly yours, ASCO Valve Inc.
3
MAY-29-09 FRI 11:23 AM hSCO VALVE Q, A. FAX NO. 3 P. 05 A "3315-A Nuclear Ports Ceiter Old Forest Road 4
A R EV A NP Af P.0. Dox 10935 Lynchburg, VA. 24506-0935 Telephone (434) 832-2998 Fax (434) 832z2953 an AREVA arnd Siemens company t.q~kZnD.yj*iiatutac* ; ASCO 1Vydrarnotors9 -. ASCO Solenotr, Valves -ROP Seal and Motor Parts - Filer Cartidgos - Ljinilofqse AcLwta,1r, Parns S Motors - Vo*,n Valveos -,Anderson Greenwood Crosby (Yarway) Valves and Paris - Cufler-Hamnmer Electrical Products - Fluid Soeling Producls - EMPATH -
XiitraChecýr Etiagrxostic Systems- - Stnarns-toger- Reliance & Bier.ens Electric Motors - Pressurizer Heaters - Meggitt Conta)nment April 27, 2009 09-009 CWM ,.
Ms. Linda S. Anderson Dominion Virginia Power-- North Anna PO Box 26459 Richmo*d, VA. 23260.-5459 REF' Dominion Purchaso Order: 45568428 Item t : Material Number 42124089 ASCO P/N NPEFKXSSO01ZHEG 10688, 1125/dc ity. 2 each Serial Numbers F167468-1 & 2 ARFEVA SOO#58004494
Dear Ms. Anderson:
AREVA NP Inc. has been advised by the manufacturer, Automatic Switch Co., that the above 2 valves may have been provided without Installation of an Insulating barrier in the solenoid housing. Depending upon the wiring coorrections with In the solenoid enclosure this condition could result in a short (ground) between a lead rwire and the metal enolosutre.
AREVA is requesting Dominion/North Anna to verify if the valves are installed or are still in the war*eho.itse. If the valves are not installed we would request they be returned to AREVAINPC to verify and correct the problem. If the valves are installed we can provide replacement valves or could also provide the Insulating barrier for Dominion to instalf inthe field. Please see the attached Installation and Maintenance Sheet V663OR1 that shotws the insulating barrier and its location. ASCO has determined this is an isolated incident as the 2 va!vcs provided were the first time this particular part number was configured. The potential condition was foutnd when building additional valves of this part number and it was discovered that the Insulating barrier and a warning label for the wire type used to connect were left off of the valve bill of material. This has been corrected.
AREVA and ASCO are continuing to investigate this condition but wanted to get this information to you as soon possib!e.
AREVA and ASCO are available to answer any further questions regarding this issue and apologize for any Inconvenience this causes.
Please call me if you havo any questions on Itis matter at 434-832-2930.
Sincerely, Chris Marsh Product Service Engineer Nuclear Parts Center
MAY-29-09 FRI 11:24 AM ASCO VALVE Q. A. FAX NO. 3 P. 06 EMERSON, ASCO Valve, Inc.
50 Hanover Road Florham Parrd, NJ 07932 USA T (973) 9613 2000 F (073) 966-2628 w WW .So I0Lraa ics.C0111 Areva NP 3315-A Old Forest Road
.1,ynchburg, VA 24506-0935 ATTN: Clhriu Marsh May 7, 2009 REP: Notification of Valves missing insulation and a field wiring warning label inside housing.
SUB3: MODEL: NPEFKX8300141EGi0688 125/DC
Dear Mr. Marsh,
On 6/4/08 Areva purchase order 1008013035 was entered for two (2) valves model NPEFKX8300141 EG10688 125/DC. This was the first time this modelwas configured for sale, ASCO inadvertently used a bill of material that did not include a solenoid insulator part and a field wire warning label, The insulator part is used for screw terminal coils. Its function is to prevent the field wire terminals front touching bare metal (solenoid housing); if the coil was to rotate in the housing during installation. If properly wired (no exposed or loose wiring), we would not expect a problem. The field wire warning label is to identify the proper temperature rated recommended field wire to use for the coil.
lhcse valves were built and shipped on 9/23/08. Since the bill of materials did not include the two missing parts, ASCO QC did not flag the order for incorrect items when reviewing the order (i.e. parls rnalched bill of material).
The error was picked tip on 4/27/09 on the second order for three (3) valves of the same construction, Areva PO 1008029891. An ASCO valve assembler noticed that the insulator and label were missing.
fromn the shop order when lie compared the parts to a similar valve that uses the same housing and screw terminal coil. The order was immediately brought to cngineering's attention. The bill of material was corrected and the missing insulator and label were added. PO 1008029891 was then shipped on 4/27/09.
ASCO contfirms that the shipment of the two valves on PO 1008013035 was an isolated incident since only two orders of this construction were built as noted above; the second being corrected prior to shipment, As an additional corrective action, engineering has added a final approval sign off to the valve structure procedures for new configurations prior to releasing the bill of material onto the shop floor.
If you have any questions, please contact me in at 973 966-5724. Thank you.
Jeffrey I.oprete St. Product Engineer Nuclear Products SumaTICs.,