ENS 46289: Difference between revisions
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| event date = 09/29/2010 EDT | | event date = 09/29/2010 EDT | ||
| last update date = 09/29/2010 | | last update date = 09/29/2010 | ||
| title = Potential Issues | | title = Potential Issues with Certain Regulator Model 77N-40 Air Regulators | ||
| event text = Dresser Masoneilan initiated a 10 CFR Part 21 investigation because of the failure of three (3) Air Regulators (model number 77N-40) at the PSE&G Salem Station within three months of being installed. Upon testing and evaluation, Dresser Masoneilan concluded that the internal O-ring used for pressure isolation in the Air Regulators were damaged during factory assembly contributing to the failure of the units to regulate pressure. Dresser Masoneilan has developed a corrective action plan and an in-service test method and acceptance criteria to determine if a unit is experiencing pressure loss due to the issue. Due to the volume, age and distribution of these models, Dresser Masoneilan is issuing a general notice to all utilities. | | event text = Dresser Masoneilan initiated a 10 CFR Part 21 investigation because of the failure of three (3) Air Regulators (model number 77N-40) at the PSE&G Salem Station within three months of being installed. Upon testing and evaluation, Dresser Masoneilan concluded that the internal O-ring used for pressure isolation in the Air Regulators were damaged during factory assembly contributing to the failure of the units to regulate pressure. Dresser Masoneilan has developed a corrective action plan and an in-service test method and acceptance criteria to determine if a unit is experiencing pressure loss due to the issue. Due to the volume, age and distribution of these models, Dresser Masoneilan is issuing a general notice to all utilities. | ||
Contact Bill Comeau of Dresser Masoneilan at (508) 941-5477 with any questions concerning this notification. | Contact Bill Comeau of Dresser Masoneilan at (508) 941-5477 with any questions concerning this notification. | ||
Latest revision as of 21:08, 1 March 2018
| Where | |
|---|---|
| Dresser Masoneilan Avon, Massachusetts (NRC Region 1) | |
| Organization: | Dresser Masoneilan |
| Reporting | |
| 10 CFR 21.21 | |
| Time - Person (Reporting Time:+11 h0.458 days <br />0.0655 weeks <br />0.0151 months <br />) | |
| Opened: | Frank Wheelright 15:00 Sep 29, 2010 |
| NRC Officer: | Eric Simpson |
| Last Updated: | Sep 29, 2010 |
| 46289 - NRC Website | |