|
---|
Category:Deficiency Report (per 10CFR50.55e and Part 21)
MONTHYEARML21225A0812021-08-0404 August 2021 Lake Engineering Co., Final Report Per 10 CFR Part 21 Degraded Snubber SF1154 Hydraulic Fluid Batch No. 17BLVS293 ML21014A2342020-12-0707 December 2020 Fourth Interim Notification Per 10 CFR Part 21 Re Degraded Snubber SF1154 Hydraulic Fluid Batch No. 17BLVS293 ML20076C8582020-03-12012 March 2020 Bench Test Failure of Model 38878-x, 3-Way, 2-Position Solenoid Vales at Seabrook Station for Use on FWIV Actuator ML19346H8732019-12-12012 December 2019 Westinghouse Electric Company - Notification of the Potential Existence of Defect Pursuant to 10 CFR Part 21 ML19024A1642019-01-0707 January 2019 Ametek - Notification of Potential Defect - 10CFR Part 21 Re Solidstate Controls Safety-Related Operational Spare Parts Kits ML18309A0352018-10-31031 October 2018 Submittal of Fisher Information Notice, (FIN) 2018-03 Regarding DVC6000 and DVC6200 Environmental Qualification ML18095A0562018-04-0303 April 2018 NextEra Energy - Integrated Supply Chain - Dedicating Entity Part 21 Notification - General Electric CR120BD Relay ML18081A1182018-03-15015 March 2018 NextEra Energy - Part 21 Notification - Inadequate Dedication of Relays ML17243A1362017-08-28028 August 2017 Fisher Information Notice, (FIN) 2017-04 - Erroneous Rotary Seating Torque Calculation in Flowscanner Software ML17160A3022017-06-0101 June 2017 Part 21 - Interim Notification of a Potential Defect on a Printed Circuit Board ML17135A3102017-05-0808 May 2017 Part 21 - Interim Notification of a Potential Defect on a Printed Circuit Board SBK-L-16174, Part 21 Notification Re Westinghouse Life Line D Type Lac Induction Motor Model Hsdp 4000V, 700hp2016-11-17017 November 2016 Part 21 Notification Re Westinghouse Life Line D Type Lac Induction Motor Model Hsdp 4000V, 700hp ML16321A4472016-10-20020 October 2016 Part 21 Report on Westinghouse Life Line D Type Lac Induction Motor Failure ML16278A4712016-09-22022 September 2016 Notification of 10 CFR Part 21 Condition, Masterpact Breaker Fail to Close ML16281A2702016-09-22022 September 2016 Part 21 - Initial Notification of Masterpact Breaker Fail to Close ML16127A5952016-05-0404 May 2016 Rotork Controls Inc. Part 21 Notification Concerning V12 (Pt No. N69-921) and K5 (N69-838 & N69-926) Safety Related Micro Switches ML15103A2442015-04-0606 April 2015 Part 21 Report - Deviation of Hk Circuit Breaker Close Latch Spring ML15049A4582015-02-0606 February 2015 Thermo Gamma-Metrics, LLC - Part 21 Report Regarding Shutdown Margin Monitor Environmental Qualification Noncompliance ML14101A3422014-04-10010 April 2014 Notification of Part 21 - Potential Defect in General Electric SB1 Switches and Hea Relays ML14069A4672014-02-26026 February 2014 Part 21 Report Involving a Potential Manufacturing Defect in Replacement Masterpact Cradles ML14071A4772014-02-26026 February 2014 Report of Potential Defect Per 1OCFR Part 21 Primary Disconnect Assembly ML13165A3422013-06-12012 June 2013 60-Day Interim Report Involving an Evaluation of a Design Change to Magne-Blast Circuit Breakers ML12348A1362012-12-13013 December 2012 Part 21 60-Day Interim Report Notification: Adequacy of Design Change in Am Magne-Blast Circuit Breakers ML12352A1232012-12-13013 December 2012 60-Day Interim Report Involving an Evaluation of a Design Change to Magne-Blast Circuit Breakers ML12318A0392012-11-0808 November 2012 Part 21 - an Operating Mechanism Front Cover Failed During Licensee Receipt Inspection ML12094A3712012-04-0202 April 2012 Part 21 Report - Rosemount Pressure Transmitters with Nonzero Based Calibrations ML12058A1412012-02-23023 February 2012 Part 21 Report - Rosemount Nuclear Instruments, Inc., Pressure Transmitter with Nonzero Based Calibrations SBK-L-11232, 10 CFR Part 21 Notification, General Electric CR-120B Relays (120 Vac)2011-11-17017 November 2011 10 CFR Part 21 Notification, General Electric CR-120B Relays (120 Vac) ML11306A1942011-11-0101 November 2011 General Electric Part 21 Report Re CR-120B Relays Supplied by National Technical Systems Fail Bench Test ML0907611882009-03-11011 March 2009 Part 21 Notification - Defective Hk and K-Line Circuit Breaker Tension Springs ML0903502172009-01-27027 January 2009 Notification of Potential Part 21 Report from Fisher Controls International - Water Quality Deficiency ML0823901062008-08-25025 August 2008 Notification of Potential Part 21 on Failure of F and G Switches ML0713703092007-03-0707 March 2007 Velan, Inc., Piston Check Cv Information ML0627702242006-09-27027 September 2006 Part 21 Report from Tyco Valves & Controls LP, Improper Valve Springs in Pressure Relief Valves ML0626204942006-09-15015 September 2006 Part 21 Report by Tyco Valves and Controls, LP Re Improper Valve Springs in Pressure Relief Valves. Corrective Actions Taken by Tyco Listed ML0609504012006-04-0303 April 2006 Director Office of Inspection & Enforcement Reference: 10 CFR 21 Notification of 3/30/06 Rev1 ML0413205472004-04-23023 April 2004 Deficiency Report Re Potential Safety Hazard That Exists for Woodward Digital Reference Unit (Drus) ML0328805252003-10-0606 October 2003 Boral Spent Fuel Pool Test Coupons Report Pursuant to 10 CFR Part 21.21 ML0326507152003-09-16016 September 2003 Part 21 Report Regarding an Apparent Abnormality Involving Boral Spent Fuel Pool Test Coupons ML0326507092003-09-15015 September 2003 Part 21 Report for Seabrook Re Apparent Abnormality of Boral Coupon That Was Removed from Spent Fuel Pool for Inspection 2021-08-04
[Table view] |
Text
0//0 09116Q2003 U.S. NuclearRegulatory Commission Operations Center Event Report Page1 Power Reactor Event# 40159 Site: SEABROOK Notification Date I Time: 09/1512003 16:40 (EDT)
Unit: I Region: I State: NH Event Date Time: 09/15/2003 (EDT)
Reactor Type: [1] W-4-LP Last Modification: 09/15/2003 Containment Type: DRY AMB NRC Notified by: JAMES PESCHEL Notlficatlons: CORNELIUS HOLDEN NRR HQ Ops Officer: RICH LAURA HAROLD GRAY RI Emergency Class: NON EMERGENCY JACK FOSTER NRR 10 CFR Section:
21.21 UNSPECIFIED PARAGRAPH Unit Scram Code TRX Crit Init Power Initial RX Mode = - _ Curr Power Current RX Mode 1 N lYes 100 Power Operation l100 Power Operation PART 21 ISSUE AT SEABROOK ON SPENT FUEL POOL TEST COUPONS The licensee reported an apparent abnormality involving Boral spent fuel pool test coupons. Westinghouse built the spent fuel pool racks using Boral material manufactured by ARR Inc. Specifically, Inspection of test coupons revealed bulging or blistering of the aluminum cladding. The Information provided by the licensee does not include any other affected plants.
IAt
t
_+ 5--23 17:134 NFESCO LICENSING 603 773 7740 P.02/02 Licensee FPLE Seabrook Site Seabrook Station : Xt V Docket 50-443 I (
Reactor Type Westinghouse PWR Date September 15, 2003 10CFR 21 Notification FPLE Seabrook has identified an apparent abnormality of a Boral coupon that was removed from the Spent Fuel Pool for inspection. Boral test coupons (Boron carbide &
Aluminum Composite Material) have been located in the Spent Fuel Pool as monitoring specimens to assess the performance of similar Boral neutron poison material incorporated into the spent fuel pool racks. Westinghouse Electric Corporation built the spent fuel pool racks using Boral material manufactured by ARR Inc. of Livomia, MI.
Visual inspection of one Boral Coupon indicated bulging of the Boral aluminum cladding that nomially encapsulates, and is adhered to, the internal Boron carbide & Aluminum Composite layer. The structural integrity of the clad material has been affected but there as been no evidence of loss or redistribution of the boron carbide in the active poison layer of the Boral Material at this time. A number of bulges were observed on the periphery of the coupon. The inspection yielded no apparent loss of neutron absorbing material. Two additional coupons w ere inspected. The inspection of these coupons resulted in similar bulges being observed.
All sixteen irradiated Boral coupons were inspected and characterized after all coupons had been removed from their stainless steel jackets. These inspections indicated a range in coupon condition from blisters approximately equivalent to those previously inspected too slightly blistered and one coupon with no outward indication of blisters.
The boron-10 areal density in the Boral has been measured via neutron attenuation testing. This testing determined that areal density was within specification and no loss of control material existed. Furthermore, the impact of the blistering on the flux trap has been determine to be small and within bounds of the criticality analysis. Thus, the Boral is presently performing its design fimction.
However, the rate of blister formation and the long-term effects of these blisters on the criticality analysis is not known. Analysis performed to date suggests that this blistering will continue. Thus over a period of time, this condition could worsen which may result in operation of the spent fuel pool outside the bounds of the criticality analysis. FPLE Seabrook considers the above condition to be reportable pursuant to 10 CFR 21.21.
Because of the uncertainty in the fture state of the Boral, Seabrook is planning to implement a Boral Monitoring program and to add a blistering allowance in the Spent Fuel Pool criticality curves.
The six Boral racks constitute 576 of the 1236 storage cells in spent fuel pool. All the spent fuel storage racks are freestanding self-supporting modules.
TOTAL P.02 09/15/2003 MON 16:32 [TX/RX NO 86161 Qj002