ML073440211

Deficiency Report Part 21 Potential Insufficient Thread Engagement for Certain Pressure Transmitters

ML073440211
Person / Time
Site:	Millstone, Calvert Cliffs, Browns Ferry, Kewaunee, Harris, Wolf Creek, Oyster Creek, Surry, North Anna, Turkey Point, Diablo Canyon, Vogtle, South Texas
Issue date:	12/07/2007
From:	Darrell Roberts Rosemount Nuclear Instruments
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Event #43826
Download: ML073440211 (16)

Text

1210712007 U.S. NuclearRegulatory Commission OperationsCenter Event Report Page I General Information or Other (PAR) Event# 43826 Rep Org: ROSEMOUNT NUCLEAR Notification Date I Time: 12/06/2007 14:03 (EST)

Supplier: ROSEMOUNT NUCLEAR Event Date / Time: 11/15/2007 (CST)

Last Modification: 12/06/2007 Region: 3 Docket #:

City: CHANHASSEN Agreement State: Yes County: License #:

State: MN NRC Notified by: DAVID T. ROBERTS Notifications: RICHARD BARKLEY R1 HQ Ops Officer: JASON KOZAL RANDY MUSSER R2 Emergency Class: NON EMERGENCY CHUCK CAIN - R4 10 CFR Section: PART 21 GROUP -EMAIL 21.21 UNSPECIFIED PARAGRAPH JULIO LARA R3 PART 21 - POTENTIAL INSUFFICIENT THREAD ENGAGEMENT FOR CERTAIN PRESSURE TRANSMITTERS Rosemount Nuclear Instruments, Inc. (RNII) reported that certain Model 1152, 1153 Series B and D, and 1154, and 1154 Series H Pressure Transmitters may have inadequate thread engagement between the electronics housing and sensor module. Transmitters affected by this notification may not confirm to RNII specifications under accident conditions. Supplier testing has determined that no immediate risk exists, however it is RNII's opinion that two threads of engagement may not be sufficient to assure that the product will perform its intended safety function over the qualified life of the transmitter.

The following are the potentially affected licensees: Oyster Creek, Calvert Cliffs, Kewaunee, North Anna, Millstone, Surry, Turkey Point, Vogtle, Diablo Canyon, Shearon Harris, South Texas Project, Browns Ferry, and Wolf Creek.

,Vec-06-2007 02:03 PM EPM OUT ROSEMOUNT NUCLEAR 9529495201 1/15 OR ROSEMOUNT° EMERSON,. Nuclear Process Management Facsimile Rosemount Nuclear instruments, Inc.

8200 Market Boulevard Chanhassen, MN 55317 Telephone 1 (952) 949-5234 Fax 1 (952) 949-5201 David. Roberts@Emerson.com To: NRC Operations Center Company:

Fax Number: (301) 816-5151 Date: 12/6107 From: David Roberts, Quality Manager No. of Pages: 15, /notuding cover page Rosemount Nuclear Instruments is submitting the attached notificatipn as required by 10 CFR Part

21. Please contact me if yov have any questions.

Sincerely, David T. Roberts Quality Manager Rosemount Nuclear Instruments, Inc.

Dec-06-2007 02:03 PM EPM OUT ROSEMOUNT NUCLEAR)9529495201 2/15 ROSEMOUNT Roseiougnt Nuclear Instruments, Inc.

8200 Market Boulevafd Nhanhassen, MN 55317 USA

• aTel 1 (952) 949-5210 Fax 1 (952) 949m5201 6 December 2007 www.RcsemountNueear cam U.S. Nuclear Regulatory Commission Washington, DC 20555-0001 Attn: Document Control Desk Re: Notification under 10 CFR Part 21 ter certain Models 1162, 1153 Series B & D, 1154, and 1154 Series H Pressure Transmitters Pursuant to 10 CFR Part 21, section 21,21(b), Rosemournt Nuclear Instruments, Inc. (RNII) is writing to inform you that Models 1152, 1153, and 1154 pressure transmitters listed in Appendix 2 and shipped to your facility between August 28, 2006.and September 29, 2006 may have inadequate thread ehgagemnent between the electronics housing and sensor module. Transmitters affected by this notification may not conform to RN II's published specifications under accident conditions.

1.0 Name and address of the individual providing the information:

Mr, Marc D. Bumgaamer Vice President & General Manager Rosemount Nuclear Instruments, Inc.

8200 Market Blvd Chanhassen, MN 55317 2.0 Identification of items suppliedt MOdels 1152, 1153, and 1154 pressure transmitters identified in Appendix 2.

3.0 Identification of firm supplying the iter:

Rosemount Nuclear Instruments, Inc.

8200 Market Blvd Chanhassen, MN 55317 4.0 Nature of the failure and potential safety hazard:

In mid-November 2007, RNII received speaific feedback from a customer regarding an 11S4 series H transmitter. Photos indicated that thp thread. engagement between electronics housing and sensor module was roughly 1.5-2 threads.

Testing was conducted on four transmitters: two units assembled to the worst case condition, and two units assembled with nominal thread engagetnent. Resonance frequency testirng was performed to assess the impact on seismic qualification. A leak check was then performed to assess the envirbonmental qualification. There were no significant differences in resonant frequency or amplitude, and no leaks were detected.

However, while these results indicate that no immediate risk exists, it is RNII's opinion that two threads of engagement may not be sufficient to assure that the product will perform its intended safety function over the qualified life of the transmitter. As a result, notification is being made under 1 CFR21 to the Customers that purchased a transmitter from the potentially affected population.

Page 1 of 2

Dec-06-2007 02:04 PM EPM OUT ROSEMOUNT NUCLEAR 9529495201 3/15 The potentially affected population was determined ftom a previously issued internal cotrective action request pertaining to the module I electronics housing thread engagement, which isolated the affected population to a single operator (see Attachment 2). At that time, the known worst case thread engagement was determined to have sufficient design margin.to assure that the transmitter could fulfill its intended safety function.

A procedure has been developed so that thread engagement can be checked in the field without any disassembly or removal of the pressure transmitter. This procedure is provided in Attachment 1.

5.0 The corrective action whiCh is taken, the name of the individual or organization responsible for that action, and the length of time tAken to complete that action:

" RNII held shipments of all transmitters while the potentially affected population was identified.

• All potentially affected transmitters in finished goods were inspected and reworked if necessary.

• All transmitters in-process were inspected for the desired thread engagement and reworked if necessary.

• Corrective actions, which included incorporation of a set of go / no-go gauges at mechanical assembly, were implemented to ensure that the electronics housing would be assembled with the desired thread engagemflent.

, Customers affected by this notification should perform a dimensional check to confirm adequate thread engagement. Instructions ate provided in Attachment 1.

• Transmitters that do not meet the dimensional criteria may not have adequate thread engagement and should be reworked in accordancQ with the operating manual or returned to RNII for rework.

6.0 Any advice related to the potential failure of the item:

The end user is advised to determine the impact of this defect upon its plant's operation and safety, and take action as deemed necessary. The electronics housing can be removed and re-installed in accordance with the operating manual Alternatively, affected transmitters can be returned to RNII for rework at no charge.

Rosemount Nuclear Instrumients, Inc. is committed to the nuclear industry and remains dedicated to the supply of high quality products to.our customers. If you have any questions, or require additional information related to this issue, please contact: Mike Dougherty (208)-865-1112, Gerard Hanson (952) 949-5233, Bob Cleveland (952) S49-5206, or Matt Doyle (952) 949=5204.

Sincerely, Marc 0. Bumgarner Vice President & General Manager Rosemount Nuclear Instruments, Inc.

ROSEMOUNT" Nuclear Page 2 of 2

Dec-06-2007 02:04 PM EPM OUT ROSEMOUNT NUCLEAR 9529495201 4/15 10 CFR Part 21 Notification - 6 December 2007 APPENDIX 1: Inspection for acceptable thread ehgagement For Model 1152, 1 153_Series_ B & D-and 115-4 Pressure Transmitters

1. Using machinist parallels, gage blocks, or equivalent, me$asure the distance between the top of the flanges and the bottom of the lock nut as iridicated in the fig~ure below.

2. Ifthe distance is greater than 0.375 inches, the tratsmitter should be reworked in accordance with the Qperating manual or returned to RNII for rework.

For Model 1154 Series H Pressure Tran.smitter

1. Using machinist parallels, gage blocks, or equivalent, measure the distance between the top of the metal shroud and the bottom of the lo.ok nut as ihdicated in the figure below.

2. Ifthe distance is greater than 0.250 inches, the transmitter should be reworked in accordance with the operating manual or returned to RNII for rework.

Model 1152i 1153 Series B & D, and 1154 Model 1154 Series H ROSEMOUNT Nuclear

Dec-06-2007 02:04 PM EPM OUT ROSEMOUNT NUCLEAR 9529495201 5/15 APPENDIX 2:10 CFR Part 21 Notification - 6 December 2007.

Amergen Energy Co LLC ROSEMOUNT Nuclear

Dec-06-2007 02:04 PM EPM OUT ROSEMOUNT NUCLEAR 9529495201 6/15 APPENDIX 2:10 CFR Part 21 Notification - 6 December 2007.

Constellation Nuclear S al es"r h s r e Oem Purchase Order Model Number 0/1N Ship Date site 1745042 418436 114H9gRN0034 "5331 I7g I1-s .06 CalvertClffn i

Nuclear

Dec-06-2007 02:04 PM EPM OUT ROSEMOUNT NUCLEAR 9529495201 7/15 APPENDIX 2:10 CFR Part 21 Notification - 6 December 2007.

Dominion Energy Kewaunee Sales I

Sales Pr Order his Order Model Numiber SIN Date

-Ship Sit e u

1747213 45450382 11521-1P5L22T1805PM 533012 29-Aua-06 Kewaunae Nuclear

Dec-06-2007 02:05 PM EPM OUT ROSEMOUNT NUCLEAR 9529495201 8/15 APPENDIX 2: 10 CFR Part 21 Notification - 6 Decernber 2007.

Dominion Generation Bales OrderSiWe Order Purchase Order Model Nuhiber SIN Ship Dat 1743278 145448949 I 1153HB6PA 533196 I 28-Au3A)8 Nnrth Annn Pnwe'r ,gtntinn 1735453 45446441 1154.P7RH 533165 30-Aug-06 Millstong Power Station 1729026 1 45443188 I1152DP3N22PB I 533203 I 30-Aug-06 JSurry Power Station 1 63320ý ROSEMOUNT' Nuclear

Dec-06-2007 02:05 PM EPM OUT ROSEMOUNT NUCLEAR 9529495201 9/15 APPENDIX 2:10 CFR Part 21 Notification - 6 December 200?.

Florida Power and Light Co

-I Sales Order Purchase Order Model N~umber SIN thip Date Orer PuchseOrerMoelNube SN SPinfNte~

hiDT=Jrk 1744793 1744793 1744793' 747311 95897 95897

[1153HD5PANOO.65 1153HDSPAN0065 53HD5PANOO6 1153HD5PAN0065 533252 533253

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Nua Turkey Point Nuclear3& 4 31-Au906J Turkey Point Nuclear3& 4 3.&.

ROSEMOUNT" Nuclear

Dec-06-2007 02:05 PM EPM OUT ROSEMOUNT NUCLEAR 9529495201 10/15 APPENDIX 2: 10 CFR Part 21 Notification - 6 December 2007.

Georgia Power Co Sales Order Purchase Order Model Number SIN Ship Date Ste 1745987 7072754 1154SH9RH 533222 6-Sep-06 Vogtl.Elecri Generating Plant 1745987 7072754 1154SH9RH 533223 67Sep-06 Vogtle Electric Generating Plant ROSEMOUNT*

Nuclear

Qec-06-2007 02:05 PM EPM OUT ROSEMOUNT NUCLEAR 9529495201 11/15 APPENDIX 2: 10 CFR Part 21 Notification - 6 December 2007.

Pacific Gas and Electric Co Sates Purchase Order Mo~del NUmnb.er S/N Ship Dazte Site Order

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Purchase Order Model Number I +

1732405 130124 115B2DPSNQ2PB 533289 18-Sen-06 Disbln Canyon 173208 13024 1S4H5RC- 532 118B-OSeD- D~iablo Canyon 173240$ 130124 1154DH5RC_ 533257 1-Sgp06 - iablo Canyon 1732406 130124 115413HS1RC 533258 1.8-,..@p-06 Diablo Canyon, 1732406 130124 I154DHSRC 533259 18-Sep-06 Diablo Canyon 1732406 130124 1154DH5RC 533260 18-Sep-06 Diablo Canyon 1732408 130124 1154DH5R0 I..533261 14-Sep-06 Diablo Canyon 1732406 130124 1154DHSRC 1 533262 18-San-06 I Diablo Canyon ROSEMOUNT' Nuclear

Dec-06-2007 02:05 PM EPM OUT ROSEMOUNT NUCLEAR 9529495201 12/15 APPENDIX 2: 10 CFR Part 21 Notlficatlon--6 December 2007.

Progress Energy Carolinas Inc les Purchase Order Modl Ship Da Site 1732337 276495 1153GBBRAI 533221 &5Sep'06 Shearon Harris Nuclear Plant ROSEMOUNT Nuclear

Dec-06-2007 02:05 PM EPM OUT ROSEMOUNT NUCLEAR 9529495201 13/15 APPENDIX 2: 10 CFR Part 21 Notification - 6 December 2007.

STP Nuclear Operating Co Sale; Order Purchase Order Model Number SIN Ship Date site 1733177 774, 2 1 153GD9RB 533220 31-Au¢-08 South Texas Prajeet EGS Nuclear

Dec-06-2007 02:05 PM EPM OUT ROSEMOUNT NUCLEAR 9529495201 14/15 APPENDIX 2:10 CFR Part 21 Not1fl¢atibn - 6 December 200?.

TVA

$ales Purchaao Order Model Number S/N Ship Date Site Order 05n 174254 00000151 REL 00220 1152P3N22PB' 330 2g-Sep-06 Browns Ferry Nuclear ýIat Nuclear

Qec-06-2007 02:06 PM EPM OUT ROSEMOUNT NUCLEAR 9529495201 15/15 APPENDIX 2:10 CFR Part 21 Notification - 6 December 200?.

Wolf Creek Nuclear Operating Corp Sales Purchase Order Mde.l Number SIN Ship Date Order site 1732811 735109 REV 4 115_4DP41RG 533254 14-Sep-06Q Wolf Creek 1732811 735109 REV 4 11540I04RG 533255 14zSep-06 Wolf Creek 1732811 1 735109 REV 4 115[DP4RG 533265 14-Sep=06 Wff Creek ROSEMOUNT' Nuclear