ML14171A356
| ML14171A356 | |
| Person / Time | |
|---|---|
| Site: | Waterford  |
| Issue date: | 06/12/2014 |
| From: | Jarrell J Entergy Operations |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| Download: ML14171A356 (3) | |
Text
0611212014 U.S. Nuclear Reeulatorv Commission OperationsCenterEvent Renort Pawp I Power Reactor Event # 50191 Site: WATERFORD Notification Date / Time: 06/12/2014 09:31 (EDT)
Unit: 3 Region: 4 State: LA Event Date / Time: 04/18/2014 04:29 (CDT)
Reactor Type: [31 CE Last Modification: 06/12/2014 Containment Type: DRY AMB NRC Notified by: JOHN JARRELL Notifications: GREG WERNER R4DO HQ Ops Officer: JOHN SHOEMAKER PART 21 GROUP EMAIL Emergency Class: NON EMERGENCY 10 CFR Section:
21.21 (d)(3)(i) DEFECTS AND NONCOMPLIANCE Unit Scram Code RX Crit Init Power Initial RX Mode Curr Power Current RX Mode 3 N No 0 Refueling 0 Refueling MASONEILAN ACTUATORS DISCOVERED TO FAIL-CLOSED INSTEAD OF THE REQUIRED FAIL-OPEN CONFIGURATION "This is a non-emergency notification from Waterford 3 required under 10 CFR PART 21 concerning the deviation of a basic component from manufacturing purchase specifications.
"On 04/18/2014, during pneumatic actuator replacement for Emergency Feedwater [EFW] valve EFW-224A (EFW to Steam Generator #1 Primary Flow Control Valve), it was identified that the fail action of the actuator was incorrect in that it was in a fail-closed instead of fail-open configuration. The actuator model, as identified in Waterford 3 site receipt/acceptance document and the actuator's name plate data, was a Masoneilan model 47 Sigma-F, which is specified as a fail-open actuator. However, the actuator was discovered to have a fail closed action, which is indicative of a Masoneilan model 48 actuator.
"The fail-action of these Masoneilan Sigma-F actuators can be changed in accordance with its technical manual TDM120.0565 with no additional parts; therefore, Waterford 3 corrected the fail action of EFW-224A's replacement actuator (to fail-open) and ensured the handwheel indicator was corrected prior to entering mode 4.
"Two of these actuators were received and accepted as Masoneilan model 47 Sigma-F (fail-open) actuators in September of 2010, both of which were labeled as such, yet configured in the fail-closed action. One of these two actuators remains in the warehouse and has been placed on hold. The vendor, Dresser Masoneilan, has been notified in writing on May 12, 2014.
"On 6/9/2014 at approximately 1600 CDT, Entergy concluded that for those potential applications of this valve operator model in the EFW system, had they been installed without correcting the deviation, it could have resulted in a substantial safety hazard in that it could have prevented fulfillment of EFW safety function, and therefore k
06/12/2014 U.S. Nuclear Regulatory Commission OperationsCenter Event Report Page 2 reportable under 10CFR PART 21. The Waterford 3 Site VP was informed on 06/11/2014."
The licensee has notified the NRC Resident Inspector.
0831 CDTPAGE I OF 2 NRC FORM 361 REACTOR U.S. NUCLEAR REGULATORY COMMISSION (12-2000) PLANT OPERATIONS CENTER EVENT NOTIFICATION WORKSHEET EN # 50191 NRC OPERATION TELEPHONE NUMBER: PRIMARY -- 301-816-5100 or 800-532-3469*, BACKUPS -- list] 301-951-0550 or 800-449-3694*,
[2nd] 301-415-0550 and [3rd] 301-415-0553 *Licensees who maintain their own ETS are provided these telephone numbers.
NOTIFICATION TIME FACILITY OR ORGANIZATION UNIT NAME OF CALLER CALL BACK#
0831 CDT Waterford 3 John Jarrell 504-739-6685 EVENT TIME & ZONE EVENT DATE POWER/MODE BEFORE POWER/MODE AFTER 0429 CDT 04/18/2014 0.0% / MODE 6 0.0% / MODE 6 EVENT CLASSIFICATIONS 1-Hr. Non-Emergency 10 CFR 50.72(b)(1) F] (v)(A) Safe S/D Capability AINA EI GENERAL EMERGENCY GEN/AAEC [:] TS Deviation ADEV Li (v)(B) RHR Capability AINB Li SITE AREA EMERGENCY SIT/AAEC 4-Hr. Non-Emergency 10 CFR 50.72(b)(2) LI (v)(C) Control of Rad Release AINC
[] ALERT ALE/AAEC Li (i) TS Required S/D ASHU LI (v)(D) Accident Mitigation AIND Li UNUSUAL EVENT UNU/AAEC Li (iv)(A) ECCS Discharge to RCS ACCS Li (xii) Offsite Medical AMED Li 50.72 NON-EMERGENCY (see next columns) Li (iv)(B) RPS Actuation (scram) ARPS Li (xiii) Loss Comm/AsmtlResp ACOM Li PHYSICAL SECURITY (73.71) DDDD Li (od) Offsite Notification APRE 60-Day Optional 10 CFR 50.73(a)(1)
Li MATERIAL/EXPOSURE B??? 8-Hr. Non-Emergency 10 CFR 50.72(b)(3) Li Invalid Specified System Actuation AINV Li FITNESS FOR DUTY HFIT Li (ii)(A) Degraded Condition ADEG Other Unspecified Requirement (Identify)
OTHER UNSPECIFIED REOMT. (see last column) Li (ii)(B) Unanalyzed Condition AUNA _E 10 CFR 21.21 (d)(3)(i) Defect NONR EL INFORMATION ONLY NNF Li (iv)(A) Specified System Actuation AESF Li NONR DESCRIPTION This is a non-emergency notification from Waterford 3 required under 10 CFR PART 21 concerning the deviation of a basic component from manufacturing purchase specifications.
On 04/18/2014, during pneumatic actuator replacement for Emergency Feedwater valve EFW-224A (EFW to Steam Generator #1 Primary Flow Control Valve), it was identified that the fail action of the actuator was incorrect in that it was in a fail-closed instead of fail-open configuration. The actuator model, as identified in Waterford 3 site receipt/acceptance document and the actuator's name plate data, was a Masoneilan model 47 Sigma-F, which is specified as a fail-open actuator. However, the actuator was discovered to have a fail closed action, which is indicative of a Masoneilan model 48 actuator.
The fail-action of these Masoneilan Sigma-F actuators can be changed in accordance with its technical manual TD-M120.0565 with no additional parts; therefore, Waterford 3 corrected the fail action of EFW-224A's replacement actuator (to fail-open) and ensured the handwheel indicator was corrected prior to entering mode 4.
Two of these actuators were received and accepted as Masoneilan model 47 Sigma-F (fail-open) actuators in September of 2010, both of which were labeled as such, yet configured in the fail-closed action. One of these two actuators remains in the warehouse and has been placed on hold. The vendor, Dresser Masoneilan, has been notified in writing on May 12, 2014.
On 6/9/2014 at approximately 1600 CDT, Entergy concluded that for those potential applications of this valve operator model in the EFW system, had they been installed without correcting the deviation, it could have resulted in a substantial safety hazard in that it could have prevented fulfillment of EFW safety function, and therefore reportable under 10CFR PART 21. The Waterford 3 Site VP was informed on 06/11/2014.
[Note: This notification was made on 6/12/2014 at 0931 EDT, received by officer John Shoemaker, being emailed to HOO.HOC@nrc.gov[Ref. WF3_CR-2014-1833].
NOTIFICATIONS YES NO WILL BE ANYTHING UNUSUAL OR Li YES (Explain above) [ NO NRC RESIDENT [ Li Li NOT UNDERSTOOD?
STATE Li [ F] DID ALL SYSTEMS YES Li NO (Explain above)
LOCAL ID 0 R FUNCTION AS REQUIRED?
OTHER GOV AGENCIES Li [ Li MODE OF OPERATION ESTIMATED ADDITIONAL INFO ON BACK MEDIA/PRESS RELEASE F] [ UNTIL CORRECTED: N/A RESTART DATE: N/A []YES ENO NRC FORM 361 (12-2000)