ML101940309

Rosemount Nuclear Notification Under 10 CFR Part 21 for Certain Model 3051N Pressure Transmitters

ML101940309
Person / Time
Site:	Vermont Yankee
Issue date:	07/12/2010
From:	Pham D Emerson Process Management, Rosemount Nuclear Instruments
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML101940309 (8)

Text

EMERSON. ROSEMOUNTI Process Management Nuclear 8200 Market Boulevard Ghanhassen, MN 55317 USA Tel 1 (952) 949-5210 Facsimile Fax 1 (952) 949-5201 No. of Pages:

Including cover page To: NRC Operations Center Fax Number: (301) 816-5151 Company; Date: Monday, July 12*, 2010 Duyen Pham, Quality From; Manager Phone: (952) 949-5363 E-Mail: Duyen.Pham@Emersoncom

Subject:

Rosemount Nuclear Instruments, Inc. is submitting the attached notification as required by 10 CFR Part 21. Please contact me if you have any questions.

Sincerely, 422 Aa6?4r Duyen Pham Quality Manager Rosemount Nuclear Instruments, Inc.

www. RosemountNuclear.com RNll.Info@cEmersonProcess.com

ORoeUount Nuclear Instruments, Inc.

8200 Market Boulevard Chanhassen, MN 55317 USA Nuclear Tel 1(952) 9951 Fax 1 (952) 949-5201 www. RosemountNuclear.corn 12 July 2010 U.S, Nuclear Regulatory Commission Washington, DC 20555-0001 Attn: Document Control Desk Re: Notification under 10 CFR Part 21 for certain Model 3051N Pressure Transmitters Pursuant to 10 CFR Part 21, section 21.21(b), Rosemount Nuclear Instruments, Inc. (RNII) is writing to inform you that a limited number of Model 3051 N pressure transmitters listed in the attachment may exhibit non-linear and non-repeatable performance. The affected transmitters were shipped from RNII between August 12, 2002 and September 27, 2006.

1.0 Name and address of the individual providing the information:

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

8200 Market Boulevard Chanhassen, MN 55317 2.0 Identification of items supplied:

Certain Model 3051 N pressure transmitters identified in the attachment.

3.0 Identification of firm supplying the item:

Rosemount Nuclear Instruments, Inc.

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

The Model 3051 N Smart Pressure Transmitter is dedicated for nuclear use consistent with the requirements of 10 CFR Part 21. It is qualified for use in safety related applications per IEEE 323-1983 (mild environment) and IEEE 344-1987 for seismic applications as documented in its associated qualification reports.

Procurement and production records indicate that 53 Model 3051N pressure transmitters (Ranges 1, 2 and 3) manufactured between August 2002 and September 2006 have sensor module castings that were not solution annealed, and therefore may contain elevated levels of hydrogen in the sensor module fill fluid. Solution annealing is a heat treatment process for castings. It is used to homogenize the casting by reducing any segregated elements that include carbon, which can greatly reduce corrosion resistance.

This process also reduces the level of mobile hydrogen in the casting to a point where out gassing is no longer a reliability concern.

Page 1 of 2

Elevated levels of hydrogen in the sensor module casting can create a reliability concern because mobile hydrogen can diffuse through the metal into the sensor module fill fluid and may eventually reach gas solubility limits of the fill fluid. When this occurs, gas vapor bubbles may form, primarily under vacuum process conditions, resulting in a sensor output shift. A transmitter with hydrogen bubbles in the sensor module fill fluid will annunciate itself by exhibiting non-linear and non-repeatable performance.

To date, RNII has not received any 3051 N field returns for this issue. However, there have been two confirmed failures related to this issue on a commercially available Rosemnount product using the identical sensor module casting. Additionally, there have been other confirmed failures related to this issue on a commercially available Rosemount product using a similar, but not identical casting. These commercial grade product returns prompted additional internal testing and analysis that indicated a potential reliability concern on 3051 N transmitters that were manufactured with non-solution annealed module castings.

As a result, a thorough evaluation was completed and a notification about the potential substantial safety hazard identified on 7/1/10 is being made in accordance with 10 CFR Part 21 to customers that purchased a 3051'N pressure transmitter from the potentially affected population.

5.O 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:

• The last shipment of a 3051N transmitter with a non-solution annealed sensor module casting was September 2006.

• Following September 2006, all sensor module castings utilized on the 3051 N have been solution annealed.

• Procurement drawings for the module castings have been reviewed and the requirement to solution anneal all module castings for a model 3051 N transmitter has been verified.

• Model 3051 N pressure transmitters affected by this notification may be returned to RNII for replacement at no charge.

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

The end user is advised to determine the impact of this potential reliability issue upon its plant's operation and safety, and take action as deemed necessary. Affected transmitters may be returned to RNII for replacement at no charge.

Rosemount Nuclear Instruments, 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 iss 'ue, please contact: Mike Dougherty (208) 865-1112, Gerard Hanson (952) 949-5233, Bob Cleveland (952) 949-5206, or Matt Doyle (952) 949-5204.

Sincerely, Mact mg.arner Vice President &General Manager

• Rosemount Nuclear Instruments, Inc.

ROSEMOUNT' Nuclear Page 2of 2

ATTACHMENT: 10 CFR Part 21 Notification - 12 July 2010.

Entergy Corp Sales Order Purchase Order Model Number Serial Number Ship Date Site Number 1061163 VY014098 30S1ND2AO2A1AH2BS 1243742 12-Aug-02 VERMONT YANKEE 1,061163 VY014098 30S1ND2AO2A1AH2BS 1243743 12-Aug-02 VERMONT YANKEE 1061163 VY014098 30S1ND2A02A1AH2BS 1243741 12-Aug-02 VERMONT YANKEE 1083248 VY014098 3051ND2A02B1AH2BS 1260592 18-Sep-02 VERMONT YANKEE 1,083248 VY014098 3051ND2AO2BIAH2BS 1260594 18-Sep-02 VERMONT YANKEE 1083248 VY014098 3051ND2AO2BIAH2BS 1260593 18-Sep-02 VERMONT YANKEE 1084239 VY014552 3051ND3A02BIAH2BS 1263277 20-Sep-02 VERMONT YANKEE 1.084239 \VY014552 3051ND3AO2B1AH2BS 1263276 20-Sep-02 VERMONT YANKEE

ATTACHMENT: 10 CFR Part 21 Notification - 12 July 2010.

Emerson Process Management AG Sales Order Purchase Order Model Number Serial Number Ship Date Site Number 1170729 41607157 3051NG3AO2A1JM6H2BS 1336295 15-Apr-03 KRSKO 1170729 41607157 3051NG3A02A1JM6112BS 1336296 15-Apr-03 KRSKO 1170801 41607158 30S1ND3A02AIJH2BS 1336290 17-Apr-03 KRSKO 1170801 41607158 3051ND3A02AIJH12BS 1336289 17-Apr-03 KRSKO

ATTACHMENT: 10 CFR Part 21 Notification - 12 July 2010.

EMERSON PROCESS MANAGEMENT SL Sales Order Purchase Order Model Number Serial Ship Date Site Number Number 1094472 34989553 3051NDIA02AIAH2MSIB2 1277316 24-Oct-02 SANTA MARIE DE GARONA 1094472 2 34989553 3O5INDIAO2A1AH12MB2 1277313 4-Oct-02 SANTA MARIE DE GARONA 1094472 34989553 3051NDIAO2A1AH2M5B2 1277317 24-Oct-02 SANTA MARIE DE GARONA 1094472 34989553 3051NDIA02AIAH2M5B2 1277314 24-Oct-02 SANTA MARIE DE GARONA 1094472 34989553 3051ND1A02A1AH2M5B2 1277315 24-Oct-02 SANTA MARIE DE GARONA 1094472 134989553 3051NDIA02AIAH2M5B2 1277312 24-0ct-02 SANTA MARIE DE GARONA

ATTACHMENT: 10 CFR Part 21 Notification - 12 July 2010.

U Shun Enterprise Co LTD Sales Purchase Model Number Serial Ship Date Site Order Order Number Number Kuosheng Nuclear 1766706 F-119-95 (351-950159023Y) 3051ND3A02A1AB2H2 1710273 27-Sep-06 Power Station

ATTACHMENT: 10 CFR Part 21 Notification - 12 July 2010.

Korea Hydro and Nuclear Power Co Sales Order Purchase Order Model Number Serial Number Ship Date Site Number 894002 PUC-P-9J230A 3051ND1A02A1AH2B2 1240830 16-Aug-02 Ulchin 5 894205 PUC-P-9J230A 3051N01A02A1AH2B2 1316121 1-Apr-03 Ulchin 6 894205 PUC-P-9J230A 3051ND1A02A1AH2B2 1315786 1-Apr-03 Ulchin 6 894205 PUC-P-9J230A 3051ND1A02A1AH2B2 1315787 1-Apr-03 Ulchin 6 894205 PUC-P-9J230A 3051NDIA02AIAH2B2 1315780 1-Apr-03 Ulchin 6 894205 PUC-P-9J230A 3051ND1A02A1AH2B2 1315777 1-Apr-03 Ulchin 6 894205 PUC-P-9i230A 3051ND1A02A1AH2B2 1315778 1-Apr-03 Ulchin 6 894205 PUC-P-9J230A 3051ND1A02A1AH282 1316127 1-Apr-03 Ulchin 6 894205 PUC-P-9J230A 305IND1A02A1AH2B2 1315775 1-Apr-03 Ulchin 6 894205 PUC-P-9J230A 3051ND1A02A1AH2B2 1315779 1-Apr-03 Uichin 6 894205 PUC-P-9J230A 3051N01A02A1AH12B2 1315791 1-Apr-03 U 6

,chin 894205 PUC-P-9J230A 3051NDIA02A1AH2B2 1316126 1-Apr-03 Ulchin 6 894205 PUC-P-9J230A 3051ND1AO2A1AI-12B2 1315783 1-Apr-03 Ulchin 6 894205 PUC-P-9J230A 3051NDIA02AIAH2B2 1316119 1-Apr-03 Ulchin 6 894205 PUC-P-9J230A 3051ND1A02AIAH2B2 1316120 1-Apr-03 Ulchin 6 894205 PUC-P-9i230A 3051NDIA02AIAH2B2 1315794 1-Apr-03 Ulchin 6 894205 PUC-P-9J230A 3051ND1A02A1AH2B2 1315785 1-Apr-03 Ulchin 6 894205 PUC-P-9J230A 3051ND1A02A1AH2B2 1315781 1-Apr-03 Ulchin 6 894205 PUC-P-9J230A 3O51ND1AO2A1AH2B2 1316122 1-Apr-03 Ulchir, 6 894205 PUC-P-9J230A 30S1ND1AO2A1AH2B2 1316123 1-Apr-03 Ulchin 6 894205 PUC-P-9J230A 3051NDIA02A1AH2B2 1315793 1-Apr-03 Ulchin 6 894205 PUC-P-9J230A 3051ND1A02AIAH2B2 1315788 1-Apr-03 Ulchin 6 894205 PUC-P-9J230A 3051ND1A02AIAH2B2 1316124 1-Apr-03 Ulchin 6 894205 PUC-P-9J230A 3051NDIAO2A1AH2B2 1315782 1-Apr-03 Ulchin 6 894205 PUC-P-9J230A 3051ND1AO2A1AH2B2 1315789 1-Apr-03 Ulchin 6 894205 PUC-P-9J230A 3051ND1AO2A1AHZ22 1316125 1-Apr-03 Ulchin 6 894205 PUC-P-92230A 3051ND1AO2A1AH2B2 1316128 1-Apr-03 Ulchin 6 894205 PUC-P-9J230A 3051ND1A02A1AH2B2 1315784 1-Apr-03 Ulchin 6 894205 PUC-P-9J230A 3051ND1A02A1AH2B2 1315790 1-Apr-03 Ulchin 6 894205 PUC-P-9J230A 3051ND1A02A1AH2B2 1315792 1-Apr-03 Ulchin 6 894205 PUC-P-9i230A 3051NDIA02A1AH2B2 1365414 3-Sep-03 Ulchin 6 894205 PUC-P-9J230A 3051NDIA02A1AH2B2 1365413 3-Sep-03 Ulchin 6 894205 PUC-P-9J230A 3051NDIA02A1AH252 1365411 3-Sep-03 Ulchin 6 894205 PUC-P-9J230A 3051NDIA02AIAH2B2 1365410 3-Sep-03 Ulchin 6