The information below is a summary of a report received via facsimile from Tyco electronics:
During normal assembly processing of nuclear E7000 relays, Tyco Electronics experienced an issue with a component. A retainer ring on the spindle assembly was found to have a hydrogen embrittlement issue that may fracture at some point in this products' life cycle. Further investigation revealed this condition is limited to one specific lot of retainer rings.
Tyco purged this lot of retainer rings from their inventory and all 'work in process'. Tyco is able to account for all the retainer rings in this lot. Tyco's records indicate that some relays shipped to the [facilities listed below] were made using this specific retainer ring lot.
Because the retainer ring did not meet stated requirements, Tyco is recalling the specific relays for replacement. Note that only the specific lot numbers listed [below] are affected by this recall. All other lots should function as intended.
Item supplied are E7000 relays with serial numbers beginning with 1019. Certificates of Conformance stating exact relay description and serial numbers were sent to affected customers with Tyco's June 16, 2010 notification.
Tyco sold this safety-related item for specified and unspecified applications to the customers listed below:
South Carolina Electric & Gas Jenkinsville, SC 3 Relays
Entergy Nuclear Operations, Indian Point Energy Center Buchanan, NY 2 Relays
Exelon Generation Company/Braidwood Braidwood, IL 2 Relays
Trentec Curtis-Wright Flow Control Cincinnati, OH 1 Relay
Ergytech Houston, TX 1 Relay
Entergy Operations Inc. (
Arkansas) Russellville,
AR 1 Relay