ENS Event | |
|---|---|
04:00 Sep 29, 2010 | |
| Title | Potential Issues with Certain Regulator Model 77N-40 Air Regulators |
| Event Description | 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. |
| 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 | |
Dresser Masoneilan with 10 CFR 21.21, Notification of failure to comply or existence of a defect and its evaluation | |
WEEKMONTHYEARENS 462892010-09-29T04:00:00029 September 2010 04:00:00
[Table view]10 CFR 21.21, Notification of failure to comply or existence of a defect and its evaluation Potential Issues with Certain Regulator Model 77N-40 Air Regulators 2010-09-29T04:00:00 | |