ENS Event | |
|---|---|
05:00 Mar 5, 2007 | |
| Title | Potential Defect In E7000 Relays |
| Event Description | Notification of limited E7000 relay recall (CII-010).
During our normal assembly processing of nuclear E7000 relays, Tyco Electronics experienced an issue with a component. A spring in the base assembly broke during the calibration process. An analysis of the spring revealed non-conforming heat treatment causing the spring to become brittle. Further investigation revealed that this condition was limited to one specific lot of springs. The cause of the defect was determined to be stress corrosion cracking (SCC). Testing of other springs in this lot did not identify additional defective springs. Tyco's inspection process has been changed to better detect SCC. The defective springs have been purged from inventory and customers notified. Plant affected by this recall are: Braidwood Farley Fitzpatrick Indian Point 3 Limerick Millstone North Anna Oyster Creek Peach Bottom Perry Prairie Island San Onofre Susquehana Vogtle Watts Bar Other agencies/organizations: Delphi Controls Engine Systems Inc Entergy Oswego Warehousing Ergy Tech GE Nuclear Energy Progress Energy Carolinas Trentec Inc - Curtiss-Wright Flow Control Group |
| Where | |
|---|---|
| Tyco Electronics Fairview, North Carolina (NRC Region 1) | |
| Organization: | Tyco Electronics |
| Reporting | |
| 10 CFR 21.21 | |
| Time - Person (Reporting Time:+52.5 h2.188 days <br />0.312 weeks <br />0.0719 months <br />) | |
| Opened: | Robert Villegas 09:30 Mar 7, 2007 |
| NRC Officer: | Mark Abramovitz |
| Last Updated: | Mar 7, 2007 |
| 43218 - NRC Website | |
Tyco Electronics with 10 CFR 21.21, Notification of failure to comply or existence of a defect and its evaluation | |
WEEKMONTHYEARENS 466472011-02-28T05:00:00028 February 2011 05:00:00
[Table view]10 CFR 21.21, Notification of failure to comply or existence of a defect and its evaluation Part 21 Report - Specified Relays with Degraded Coils ENS 458622010-04-21T05:00:00021 April 2010 05:00:00 10 CFR 21.21, Notification of failure to comply or existence of a defect and its evaluation High Failure Rate of Normally Energized Electro-Pneumatic Time Delay Relays ENS 432182007-03-05T05:00:0005 March 2007 05:00:00 10 CFR 21.21, Notification of failure to comply or existence of a defect and its evaluation Potential Defect in E7000 Relays 2011-02-28T05:00:00 | |