Alert

Due to a lapse in appropriations, the NRC has ceased normal operations. However, excepted and exempted activities necessary to maintain critical health and safety functions—as well as essential progress on designated critical activities, including those specified in Executive Order 14300—will continue, consistent with the OMB-Approved NRC Lapse Plan.

Event Notification Report for September 8, 2011

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
09/07/2011 - 09/08/2011

** EVENT NUMBERS **

47123

47247

Part 21	Event Number: 47123
Rep Org: EMERSON PROCESS MANAGEMENT Licensee: FISHER CONTROLS INTERNATIONAL Region: 3 City: MARSHALLTOWN State: IA County: License #: Agreement: Y Docket: NRC Notified By: BILL FITZGERALD HQ OPS Officer: CHARLES TEAL	Notification Date: 08/04/2011 Notification Time: 12:18 [ET] Event Date: 08/04/2011 Event Time: [CDT] Last Update Date: 09/07/2011
Emergency Class: NON EMERGENCY 10 CFR Section: 21.21 - UNSPECIFIED PARAGRAPH	Person (Organization): RONALD BELLAMY (R1DO) BINOY DESAI (R2DO) RICHARD SKOKOWSKI (R3DO) BOB HAGAR (R4DO) PART 21 GROUP (EMAI)

Event Text

PART 21 - POSSIBLE WELD ROD CERTIFICATION ISSUES

"On March 3, 2011, an audit of one of Fisher Control's suppliers determined that weld rod certified by an ISO process (instead of ASME) might have been used for weld repair of castings intended for nuclear service. Fisher and the supplier are in the process of reviewing all orders affected by this issue and have yet to find any that used the subject non-confirming material

"Fisher expects to complete this evaluation by August 26, 2011. At this time, if the review determines that a failure to comply condition exits, Fisher will issue notification per the requirements of 10 CFR 21.21(b)."

* * * UPDATE AT 1300 EDT ON 9/7/11 FROM FITZGERALD TO HUFFMAN VIA FACSIMILE * * *

"Fisher Controls is providing this final notification per the requirements of 10CFR21.21(a).

"On August 3, 2011, Fisher provided an interim report concerning an audit of one of Fisher Control's suppliers and the determination that weld rod certified by an ISO process (instead of ASME) might have been used for weld repair of castings intended for nuclear service.

"Fisher and the supplier have completed the process of reviewing all orders affected by this issue and did not find any orders that used the subject non-conforming material.

"Therefore, Fisher will not issue a notification per the requirements of 10CFR21.21(b), because the review determined that a failure to comply condition does not exist."

Notified the NRC Part 21 Group and all NRC Regional RDOs via e-mail.

Power Reactor	Event Number: 47247
Facility: COOK Region: 3 State: MI Unit: [1] [ ] [ ] RX Type: [1] W-4-LP,[2] W-4-LP NRC Notified By: RANDY ROSE HQ OPS Officer: BILL HUFFMAN	Notification Date: 09/07/2011 Notification Time: 12:14 [ET] Event Date: 09/07/2011 Event Time: 08:54 [EDT] Last Update Date: 09/07/2011
Emergency Class: NON EMERGENCY 10 CFR Section: 50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL 50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION	Person (Organization): CHRISTINE LIPA (R3DO)

Unit	SCRAM Code	RX CRIT	Initial PWR	Initial RX Mode	Current PWR	Current RX Mode
1	A/R	Y	100	Power Operation	0	Hot Standby

Event Text

AUTOMATIC REACTOR TRIP FOLLOWING MAIN TURBINE TRIP FROM 100% POWER

"On Sept 7, 2011, at 0854, DC Cook Unit 1 reactor automatically tripped due to a trip of the main turbine. The cause of the main turbine trip is still under investigation.

"This event is reportable under 10 CFR 50.72(b)(2)(iv)(B), Reactor Protection System (RPS) actuation, as a four (4) hour report, and under 10 CFR 50.72(b)(3)(iv)(A), specified system actuation of the Auxiliary Feedwater System, as an eight (8) hour report.

"The DC Cook Sr. Resident NRC Inspector has been notified.

"The electrical grid is stable and Unit 1 is being supplied by offsite power. All control rods fully inserted. Decay heat is being removed via steam dumps to the main condenser. Preliminary evaluation indicates all plant systems functioned normally following the reactor trip. DC Cook Unit 1 remains stable in Mode 3 while conducting the post trip review."

Page Last Reviewed/Updated Wednesday, March 24, 2021