The following information was received via fax:
Pursuant to 10 CFR 21.21(a)(2), Fisher Controls International LLC ('Fisher') is providing required written interim notification of a deviation or failure to comply in product shipped to the Krsko Nuclear Station ('Krsko') located in Slovenia.
On July 16, 2015, Fisher became aware of an issue with an actuator fail mode for an 8 [inch] 2052- Control Disc valve, Serial Number 19443837. The affected valve was supplied in a 'Fail Closed' configuration rather than the desired 'Fail Open' configuration. Fisher has corrected the configuration and retested the affected valve at the Krsko site. Krsko has since accepted the valve for installation.
During the investigation, it was also noted there was an increase in one of the sizing factors for the valve that may have led to a non-conservative actuator sizing for this and other valves provided to this Krsko site. Fisher is currently performing an extent-of-condition review of safety-related rotary orders in order to confirm that correct orientations and actuator sizing were provided. Any identified deficiencies will be reported per the requirements of 10 CFR21.21(b). This review is expected to be completed by October 23, 2015. Additionally, all current safety related rotary orders in-house are being reviewed prior to shipment. This notice affects only rotary valves with Fisher factory mounted actuators.
Corrective Action CAR 1756 has been opened to document corrective actions taken to prevent reoccurrence.
Should there be any further questions concerning this matter, please contact Benjamin Ahrens, Manager, Quality by email at Benjamin.Ahrens@Emerson.com or via phone at 641-754-2249.
- * * UPDATE FROM GEORGE BAILINGER (VIA FAX) AT 1634 EDT ON 10/30/15 * * *
As excerpted from the fax:
Extent of condition investigations into both issues have determined that no additional valve configurations have shipped with these deficiencies."
Fisher issued Fisher Information Notice 2015-02 pertaining to the particulars of this event.
Notified R1DO (Cahill), R2DO (Bonser), R3DO (Duncan) and R4DO (Okeefe). NRR/NRO Part 21 group was notified via email.