ENS Event | |
|---|---|
05:00 May 13, 2011 | |
| Title | Valve Failed Leak Test Due to a Disc/Shaft Assembly Machining Issue |
| Event Description | The following information was received by facsimile:
After a valve failed a leak test, it was determined that a fixture to machine the valve disc was missing one of the locating pins that maintained the integrity of the shaft bore centerline when machining. It was determined that the pin was missing from the fixture from January 8, 2011, to April 7, 2011 . Fisher has conducted a review and determined that the only ASME Section III code and commercial grade dedicated parts machined during this time that would use this fixture were the parts used for the orders referenced [below]. Fisher Controls has implemented a corrective action program to address this issue. Although this notice is dated July 5, 2011 , Palo Verde was officially notified May 13, 2011, when Fisher first became aware of this issue. In the mean time, all affected discs have been returned to Fisher Controls for evaluation. Subject: NPS 16 Type A11 Disc/Shaft Assemblies for Palo Verde Orders 500541604 and 500548617 (Fisher Orders 019-F514977 and 019-F515346). |
| Where | |
|---|---|
| Emerson Process Management Marshalltown, Iowa (NRC Region 3) | |
| Organization: | Emerson Process Management |
| Reporting | |
| 10 CFR 21.21 | |
| Time - Person (Reporting Time:+1353.4 h56.392 days <br />8.056 weeks <br />1.854 months <br />) | |
| Opened: | Trish Crosser 14:24 Jul 8, 2011 |
| NRC Officer: | Vince Klco |
| Last Updated: | Jul 8, 2011 |
| 47036 - NRC Website | |
Emerson Process Management with 10 CFR 21.21 | |
WEEKMONTHYEARENS 475212011-10-13T18:00:00013 October 2011 18:00:00
[Table view]10 CFR 21.21 Fisher Controls Part 21 Notification Interim Report - Possible Disc Pin Issue on a Type A11 Butterfly Valve ENS 470362011-05-13T05:00:00013 May 2011 05:00:00 10 CFR 21.21 Valve Failed Leak Test Due to a Disc/Shaft Assembly Machining Issue 2011-05-13T05:00:00 | |