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Category:Deficiency Report (per 10CFR50.55e and Part 21)
MONTHYEARML20114E3172020-04-23023 April 2020 Final 10 CFR Part 21 Report for Masoneilan Model 8005N Transducer ML20042E2522020-01-31031 January 2020 EN 54485 Target Rock Redacted Update to Part 21 Report on Defect of Modification of Valve Component and Main Disc Lift Misadjustment ML20029D1612020-01-21021 January 2020 10 CFR Part 21 Report, Notification of a Defect Modification of a Valve Component and Main Disc Lift Misadjustment ML17312A8422017-11-0808 November 2017 Transmittal of Final Part 21 Report for Westinghouse 1000 Horsepower Motor ML17173A1392017-06-0909 June 2017 Engine Systems, Inc. - Transmittal of 10CFR21 Reporting of Defects and Non-Compliance - Report No. 10CFR21-0117, Rev. 0 ML17165A4072017-06-0909 June 2017 Part 21 Report - Defective Motor Operated Potentiometer ML16294A2642016-10-18018 October 2016 Part 21 Report - Defective Current to Pressure Transducers ML16209A0502016-07-13013 July 2016 Part 21 - Furmanite Nuclear Grade Leak Seal Material FSC-N-1B ML15103A4852015-04-0707 April 2015 Itt Engineered Valves - 2nd Interim Report to the NRC of 10 CFR 21 Event 50285, Reported by Itt 07/18/14 Concerning M I Diaphragms, Customer Testing ML14337A0942014-11-24024 November 2014 Notification of Potential Part 21 - Lack of Proper Power Supply Indication ML14329A0632014-11-19019 November 2014 Notification of Potential Part 21 Re Lack of Proper Power Supply Indication ML14261A1502014-09-17017 September 2014 Interim Report to the NRC of 10 CFR 21 Event 50285, Reported by Itt 07/18/14 Concerning M1 Diaphragms, Customer Testing ML14129A4362014-05-0808 May 2014 Interim Report -10CFR 21 Evaluation Regarding Potential Deficiencies in ASME Code Required Valve and Component Testing ML14094A4452014-04-0101 April 2014 Notification of Part 21 Report on Defective Raw Material Used to Manufacture Valve Stems ML13339A7682013-11-13013 November 2013 Letter from Tom Homer Notification of Part 21 Report on a CR7 Diode Wiring Reversed on the Automatic Voltage Regular (AVR) Panels for Palo Verde IR 07200122/20001002013-11-13013 November 2013 Engine Systems, Inc., 10CFR21 Reporting of Defects and Non-Compliance - Report No. 10CFR21-0110, Rev. 0, CR7 Diode Wiring Reversed: AVR Panel P/N D72-12200-100-PVNGS ML13324A4902013-11-13013 November 2013 Engine Systems, Inc., 10CFR21 Reporting of Defects and Non-Compliance - Report No. 10CFR21-0110, Rev. 0, CR7 Diode Wiring Reversed: AVR Panel P/N D72-12200-100-PVNGS ML13261A1512013-09-10010 September 2013 Part 21 Report - Improper Dedication of Actuator Parts ML13238A2532013-08-21021 August 2013 Notification of Potential Part 21 Report - Foxboro Power Supply Potential Failures Due to Defective the Wraps and Holders ML13122A1272013-04-30030 April 2013 Notification of Potential Part 21 Re Brackets Used Proximity Switches Installed Upside Down ML13101A1232013-04-0909 April 2013 Part 21 - Defect Due to Change in Manufacturing Process Causing Relay Failure in Safety Related Systems ML13100A3572013-04-0808 April 2013 Westinghouse, Updated Notification of a Defect Pursuant to Requirements 10CFR21 ML13093A1532013-04-0202 April 2013 Part 21 Report - Foxboro Power Supply Potential Failures Due to Defective Tie Wraps and Holders ML13079A3202013-03-18018 March 2013 Notification of Potential Part 21 Interim Report Re Possible Deviation or Defect in Nuclear Qualified High Efficiency Particulate Air Filters 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 ML12346A3002012-12-0707 December 2012 Part 21 Report - Brackets Used Proximity Switches Installed Upside Down ML12318A0412012-11-0808 November 2012 Part 21 Report - Commercial Grade Dedication Not Properly Applied to Butterfly Valves ML12243A1872012-08-23023 August 2012 Notification of Potential Part 21 - Stress Corrosion Cracking Causing Relay Failure in Safety Related Systems ML12058A1412012-02-23023 February 2012 Part 21 Report - Rosemount Nuclear Instruments, Inc., Pressure Transmitter with Nonzero Based Calibrations ML11363A1882011-12-0202 December 2011 10CFR21 Reporting of Defects and Non-Compliance - Engine Systems, Inc. Report No. 10CFR21-0098, Rev. 3, Amot Thermostatic Valve Element P/N: 9760X ML11336A3692011-12-0101 December 2011 Notification of Potential Part 21 Interim Report on Thermostatic Valve Failure on Palo Verde EDG ML11193A0072011-07-0909 July 2011 Part 21 Notification of Valve Failed Leak Test Due to a Disc/Shaft Assembly Machining Issue ML11103A0162011-04-0505 April 2011 Engine Systems, Inc., 10CFR21 Reporting of Defects and Non-Compliance, Report No. 10CFR21-0098, Rev. 1 ML1109701512011-04-0101 April 2011 Interim Report on Thermostatic Valve Failure on Palo Verde EDG ML1109506582011-03-23023 March 2011 Submittal of Defect Discovered on Asea Brown Boveri ABB K600S 480 Vac Class 1E Breaker - Bell Alarm Switch Bracket Misalignment ML1105908862011-02-24024 February 2011 Notification of Potential Part 21 Report - Misaligned Bell Alarm Switch Brackets on 480 Vac Class 1E Circuit Breakers ML1030601022010-10-29029 October 2010 Notification of Potential Part 21 Transfer of Information Concerning Control Components Inc. (CCI) Drag Valves ML1008300422010-03-19019 March 2010 Westinghouse Electric Co., Notification of Deficiency Report Concerning Failure of an Eaton-Cutler Hammer Type ARD66OUR DC Relay to Release When De-Energized ML1008204342010-03-19019 March 2010 Notification of Potential Part 21 Re Failure of Relay to Release When De-Energized ML1005129052010-02-0505 February 2010 Part 21 Notification - Circuit Breaker Charging Motor Crank Does Not Meet Hardness Specifications ML0933701342009-12-0101 December 2009 Interim Report on Thermostatic Valve Failure on Palo Verde EDG ML0930801362009-10-23023 October 2009 Engine Systems, Inc., Submittal of Interim Report 10CFR21-0098-INT, Rev. 0 for a 10CFR21 Deviation Evaluation About Amot Thermostatic Valve Element, P/N 9760X ML0930304532009-10-23023 October 2009 Interim Report on Thermostatic Valve Failure ML0930304542009-10-23023 October 2009 Hilti, Inc., Potential Delivery of Nonconforming Washers, and Affected Utilities or Plants Are Pilgrim, Brunswick, Arizona Public Service, and Waterford 3 ML0930205602009-10-23023 October 2009 Potential Delivery of Nonconforming Washers Supplied with Expansion Anchors Type Hilti Kwik Bolt KB3 SS316, 1/4 and 3/8 Diameters, All Lengths, Which May Meet the Definition of a Defect within 10 CFR Part 21 ML0925902502009-09-0909 September 2009 Notification of Potential Part 21 Re Reporting of Defects and Non-Compliance - Engine Systems, Inc. Report No. 10CFR21-0097, Rev. 0. Woodward 2301A & DRU with Unapproved Supplier IC, P/N: 9903-303, 9903-337, 9903-444 and 9903-470 ML0925800812009-09-0909 September 2009 Notification of Potential Part 21 Involving Woodward Governors Using Unapproved Supplier Integrated Circuits ML0831900172008-11-12012 November 2008 Notification of Potential Part 21 on All Dimensionally Verified Commercial Grade Items Processed Per Fisher Manufacture Procedure Fmp 2K28 ML0823901062008-08-25025 August 2008 Notification of Potential Part 21 on Failure of F and G Switches 2020-04-23
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0212412011 U.S. Nuclear Regulatory Commission Operations Center Event Report earelI Power Reactor Event#
46639 Site: PALO VERDE Notification Date / Time: 02/24/2011 17:25 (EST)
Unit: 1 2
3 Region: 4 State: AZ Event Date / Time: 02/15/2011 16:22 (MST)
Reactor Type: [1] CE,[2] CE,[3] CE Last Modification: 02/24/2011 Containment Type: DRY AMB DRY AMB DRY AMB NRC Notified by: DEIBERT ELKINTON Notifications: VIVIAN CAMPBELL R4DO HQ Ops Officer: JOE O'HARA PART 21 GRP EMAIL Emergency Class: NON EMERGENCY 10 CFR Section:
21.21 UNSPECIFIED PARAGRAPH Unit Scram Code RX Crit lnit Power Initial RX Mode Curr Power Current RX Mode 1
N Yes 100 Power Operation 100 Power Operation 2
N Yes 100 Power Operation 100 Power Operation 3
N Yes 100 Power Operation 100 Power Operation PART 21 REPORT - MISALIGNED BELL ALARM SWITCH BRACKETS ON 480 VAC CLASS 1E CIRCUIT BREAKERS "The following event description is based on information currently available. The condition is being reported under 10 CFR 21.21(d)(1).
"On February 15, 2011, Palo Verde Nuclear Generating Station (PVNGS) completed an evaluation of prior deviations related to the alignment of bell alarm switches that were installed by the manufacturer Asea Brown Boveri / ITE Imperial Company (ABB) on K-600S 480 VAC Class 1E circuit breakers. Had the breakers been placed into service as received, the misaligned bell alarm switch brackets could have prevented the automatic or remote closure of the breakers installed in safety-related applications. The station concluded the deviations were defects that are reportable per 10 CFR 21. The discussion below provides the technical details that were discovered for the bracket misalignments and the circumstances for the breakers in which this condition was identified.
"The ABB K-600S breakers contain a protective indication feature related to the overcurrent trip. An overcurrent trip actuates a reset indicator which moves an armature roller away from the bell alarm switch (ABB part number 706747-T07/BBC) to open the alarm switch contact. The alignment of the bell alarm switch bracket affects the range of contact between the bell alarm switch and the reset indicator armature. This alignment is critical because the vibration of breaker closure can cause the switch and the armature to lose contact momentarily to create an unintended 86 lockout and trip the breaker open during the closure sequence. The breaker will not be able to be reclosed until the 86 lockout and the bell alarm switch have been manually reset. This defeats the safety function of the breaker to provide power to the supported component.
"When the condition was identified, the station adjusted the bell alarm switch brackets (ABB part number
0212412011 U.S. Nuclear Regulatory Commission Operations Center Event Report Ame 2 Power Reactor Event#
46639 709827A00) on the breakers to correct the condition. The breakers were inserted into the intended breaker enclosures after further testing. The breakers were not returned to ABB.
"The first condition that was known to have been documented in the corrective action program was discovered during pre-service testing that occurred on November 5, 2009. The breaker had been refurbished by ABB and was accepted by PVNGS Quality Control Receiving on October 2, 2009. A similar condition occurred on October 21, 2010, on a new breaker that was accepted on June 3, 2010. The untimely evaluation and defect reporting have been entered into PVNGS's corrective action program.
"This condition has not resulted in any reportable failures of in-service safety-related breakers under 10 CFR 50.73. The extent of this condition has been evaluated under an operability assessment and corrective actions to inspect potentially affected in-service breakers are in progress.
"The manufacturer and refurbisher, ABB, has been notified and since has provided tolerance information and instructions for inspection and adjustment of the bracket alignment.
"The use of ABB / ITE K600S breakers is common throughout the industry in nuclear safety-related applications.
The station is unaware of which other licensee's use the bell alarm switch to actuate an 86 lockout feature. The station has not provided any of these breakers from its own stock to any other licensee.
"The PVNGS reporting officer was notified on February 22, 2011."
The licensee notified the NRC Resident Inspector.