ENS Event | |
|---|---|
05:00 Jun 6, 2014 | |
| Title | Part-21 Report - Valve Seat Leakage Defect |
| Event Description | The following is a summary of a submitted facsimile:
A valve plug originally supplied as a spare parts order was returned to Fisher after the customer discovered a machining error was present on the plug. The Type 461 valve plug has a groove machined across the seating surface of the plug. This groove is required to provide a controlled leak rate thru the valve when the plug is on the seat. The issue recently identified shows that the machined groove did not extend through the full length of the seat. This could lead to a situation in which the intended/required leakage for this design is not fully achieved. Affected plants are: Waterford-3 and St Lucie. |
| Where | |
|---|---|
| Fisher Controls International Llc Marshalltown, Iowa (NRC Region 3) | |
| Organization: | Emerson Process Management |
| Reporting | |
| 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect 10 CFR 50.55(e) | |
| Time - Person (Reporting Time:+6897.82 h287.409 days <br />41.058 weeks <br />9.449 months <br />) | |
| Opened: | Dennis Swanson 14:49 Mar 20, 2015 |
| NRC Officer: | Mark Abramovitz |
| Last Updated: | Mar 20, 2015 |
| 50911 - NRC Website | |
Fisher Controls International Llc with 10 CFR 50.55(e), 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect | |
WEEKMONTHYEARENS 525372017-01-02T06:00:0002 January 2017 06:00:00
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