ML110890763
| ML110890763 | |
| Person / Time | |
|---|---|
| Site: | Mcguire, McGuire  |
| Issue date: | 03/29/2011 |
| From: | Dain J Duke Energy Carolinas |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| 46681 | |
| Download: ML110890763 (4) | |
Text
0312912011! U.S. Nuclear Regulatory Commission OperationsCenter Event Report Page I Power Reactor Event# 46681 Site: MCGUIRE Notification Date lTime: 03/18/2011 14:40 (EDT)
Unit: 1 2 Region: 2 State: NC Event Date I Time: 03/18/2011 (EDT)
Reactor Type: [1] W-4-LP,[2] W-4-LP Last Modification: 03/18/2011 Containment Type: ICE COND ICE COND NRC Notified by: JIM DAIN Notifications: REBECCA NEASE R2DO HQ Ops Officer: CHARLES TEAL PART 21 GROUP Emergency Class: NON EMERGENCY 10 CFR Section:
21.21 UNSPECIFIED PARAGRAPH Unit Scram Code RX Crit Init Power Initial RX Mode Curr Power Current RX Mode 1 N Yes 100 Power Operation 100 Power Operation 2 N No 0 Refueling 0 Refueling PAINT CHIPS DISCOVERED IN WOODWARD GOVERNORS Woodward governors purchased as nuclear safety related items for use in turbine driven auxiliary feedwater pumps and emergency diesel generators, were found to have paint chips on internal surfaces. These governors were manufactured by Woodward Governor Company, Loveland, CO for use at the McGuire Nuclear Station.
The NRC Resident Inspector has been informed.
Fax sent by : 99808754888 CONTRL RN 03-18-11 12:86 Pg: 1/3 Enclosure 4.2 RP/0/A/5700/01 0 NRC Event Notificmtion Worksheet Page 1 of 2 STATE: 'TIIS 1318 McGJUIRE NIJCLEAR SITE IN NRC REGION 2 MAKING AN EVENT NOTIF1CA1ION REPORTr NOTIFICATION UNIT CALLER'S NAME J CALLBACK TELEPHONE I: NRC OPERA'IONS TI1 l/I'-I ENS I1--8827°-0173 OFFICER CONTACTED
?h8111O III .. I~ h t.J A__ Oar a 60ý44 - .A/
EVF*qTTIME&ZONE EVENT [ PWERMOD BEFORE POWEyMODE, AFTER l 40 Repsonl Eri/A
_(rtme) (zone)
EVENT CLASSIFICATIONS I -ir Non-EEr!aJgcy 8-Hr Non-Emergency IOCFR 50.72(b)3 G(NERAL EMERGENC'iY (50.72 bl(a) 'IS Deviation C72.75)(cI) Spent Fuel Storage SSC defect.
SITE AREA EMERGENCY (72.75Xc2) Spent Fuel Storage degtadasion 7
ALE-r (70.52) (a) and (b) Accidental Criticality ( 2.75X)3) Furl Storage related offsite rfi*cal.
OR (72.74) La) Loss or theft of SNM UNUSUAL EVENT (50.72 b (XII)) Offsite Medical TRANSPORTATION (10 CFR 20) 4-Hr Non-Emergency (50,72 b3 (1l)(A) De raded Condition MATERIAL/EXPOSURE (10 CFR (50.72 b2 (1)) TS Required S/D (50.72 b3 (II)(B)) Uanalyzwd Condition 20)
OTHFR (50.72 b2 (IVXA)) ECCS Discharge to RCS (50.72 b3 (MV)(A)) Valid Actuation of System
[¢J*FK /¢cL.'" L[ ,*[.lisqted in Em-l. 4.3.
(50.72 b2 (IV)(B)) RPS Actuation - critical (50.72 b (V)(A)) Safe S/D Capability scraa a (50.72 b2 (XI)) Offifte Notification (50.72 b3 (V)(B)) RHR Capability (72.7$(bl Deviation from I-Sl' (50.72 b3 (V)(C)) Control of Rod Release T.S.
[70.50(a)] SNM Protective action(s) 50.721,3 (V)(D) Accident Mitigation PHYSICAL SECUR1ITY (73.71) _50.72 bW(X)((1)1 Lost ENS (50.72 b3 (X)(II)I Lul Other Asscss/Comma (50.72 b3 (X)(III)) Errtgeaey Siren INOP 24-Hr. Non-Eme=Rency Matcrial/Exposure (10CFR120)
(72.75X I)Ful Storag cui pmet failureL (73Ap G) safeguards vuhicrabilitift 26,73 Signiictu~t events involving fitness for dulty.
(70.50(bl)) Contarinatioa evejutrestrictions.
(70-50(b2)) Equipment failure (70.50(b3)) Unplanned medical treatment (70.50(b4)) Fure/exploaion damage to licensed material INI-1Certificate of Compliance EVENT DESCRIPTION Include: Systems affected, actuation's & their initiating signals, causes, effect of event on plant, actions taken or planned. etc.
4 2 Continue on Enclosure . page 2 of 2 if necessary.
NOTIFICATIONS YEfS NO WILL ANYTHING UNUSUAL OR NOT UNDERSTOOD? C YES RINO BE NRC RESIDENT - (Expjain above)
STArE4) DID ALL SYSTI'EMS FUNCTION AS YPES i 0 NO S_ REQUMD p1/
LOCAJ. (Explaia above)
OuTFi COV AGENCIES MODEOF OPERATION MREST. ADDITIONAL INFOR ON BACK 41114 MDIAJPREf S RELEASE MUNMLCORRECDI'D MA(- DATE: "1 YES C3 NO APPROVED BY: U, i atyoraresnn 1dd '
Fax sent by : 99888754888 CONTRL RM 83-18-11 12:07 Pg: 2/3 Enclosure 4.2 RP/O/A/5700/010 NRC Event Notification Workshcet Page 2 of 2 ADIOLOGICAL RELEASES: CHECK OR FILL IN APPLICABLE ITEMS (specific details/explanation should be coveasd in event description)
[ANED) RELEASE NGOING RMJNATPD
'ASEOUS RELEASE NED RELEASE QUID R.LEASE I PsrE RELEASE TS XCFFEDED MALARMS I gRFAS EVACUATED JOUNlTORED IJMONFIFORED jFSONNEL EXPOSED OR CONTAMINATEDITE PROTECITVE ACTIONS RECOMMENDED jtar release path indescription r-TI-NOTE: Contact Radiation Protection Shift to obtain the following information.
IF the n0iimiation is due and the it'orniation is not available, TH.N mark "Not Available" and complete the notification.
Release. Rate (Ci/soc) %T.S. LIrr HOO C7U11ID Total Activity (Ci) %T.S. LIMIT HOO GUIDE aoble Gas 0.1 Ci/sem .* 1000 Ci odine 10auCilsec 0.01 Ci
?articulate I uCi/sec I mCi
ýiquid (excluding t'itim 10 uCifwkir 0.1 Ci dissolved 0ble gasc _________ _______
'quid (tritium) 0.2 Cimin 5 Ci
- o0Activity I ~I I RD MONfITORS PLANT STACK CONDENSER/ MAIN WEA&M LINE SO ]SLOWDOWN OTIER ALARM (EMF 35, 36,37) AIR EJFCTOR (UNIT I -EMF 24,25.26.27 (EMF 34)
(ES4F 33) UNIT 2-EMI' 10.1, 12,13).
MONITOR READINGS; S*TfPOINTS: TRIP ii T.S. LI.-IT (If applicable) NOT APPLICABLE NOT APPLICABLE CS OR SG TUBE LEAKS: CHECK OR FILL IN APPLICABLE ITEMS (specific details/cxplanauions should be covered in evetl description)
LOCATION OF THE LEAK (e g. S#, valve, pipe, dc,);
AK RATE: gpm/gpd IMI TS EXCEEDED: UDDEN OR LONO TERM DEVELOPMPNT LEAK START DATE: TIME: .OOLANT ACTIVITY: PRIMARY SECONDARY
-La:iSample) Xc. eq.r mCi/mi Xc cq.-m "ii l Iodine q. .__. mCi/lnl Iodine eq. _.... mCil LIST OF SAFETY RELATED FEQUIPMENT NOT OPERATIONAL:
EVENT DESCRIPTION (Continued from Enclosure 4.2 page 1 of 2)
Fax sent by : 99888754888 COMMR RM 03-18-11 12:07 Pq: 3/3 McGuire Nuclear Station Non-Emergency Notification 10CFR21.21 Notification of Defect Woodward Governors Duke Energy Carolinas, LLC (Duke Energy) herein makes the following notification tinder 10CFR21.21 (d)(3)(i) of defective Woodward governor actuators (Part Numbers 9903-569 and 9903-438-ESI). The governor actuators were purchased as nuclear safety related items tbr tusc in turbine driven auxiliary feedwater pumps and emergency diesel generators, respectively, friom Engine Systems, Incorporated (ESI), 175 Freight Road, Rocky Mount, NC 27804 and were manufactured by Woodward Governor Company, Loveland, CO-One of the three new model EG3-35P Woodward governor actuators (Part Number 9903-438-ESI) was removed from storage on March 5, 2011 for installation in the 2B diesel engine, the sealed bag opened, and the Foreign Material Exclusion (FME) plugs removed from the oil cooler adapter plate. Paint chips were found in the threads of the adapter plate, on the FMF plug, and at the base of the threads inside the adapter plate. The Nordberg diesel engine uses a remotely mounted governor oil cooler, and an adapter plate attached to the FGB-35P to allow tubing connections for routing governor oil to/from the remotely mournted oil cooler. The two other new governor act(ators from the warehouse were removed for inspection and evaluation of extent of condition, paint chips were found in each of them in the same oil connection ports when the FME plugs were removed. l'hese paint chips are large enough to interfere with the proper operation of the actuator, and therefore, the operation of"the diesel generator, The adapter plate (containing ithe paint chips) on the side of the actuator was removed, cleaned, inspected, and replaced before installation of the actuator on the 2B diesel engine. The new oil cooler supplied with the new actuator, was also disascsmbled, cleaned, inspected and reassembled before installation and us.e on the 2B diesel engine. During the 2B engine testing and governor tuning, there were no instances of improper governor actuator operation.
Additionally, two turbine driven auxiliary feedwater pump governors (Part Numbers 9903-569) were visually inspected in the warehouse for loose paint and/or foreign material. The oil fill cap on the lop of the governor was examined, and the paint readily flaked off the cap when rubbed through the plastic bag, suggesting that this problem is a generic problem that also applies to these governors. When these paint chips flake off, as would be expected f-ourn applying pressure to remove the cap, there is a risk of introduction into the governor housing as the cap is removed, where these paiint chips could then challenge the ability o" the governor to adequately control the turbine speed.
None of these governor actuators have been sold or transferred to another nuclear facility. The remaining govcrnor actuators in stock have been placed on hold.
The McGuire Senior NRC Resident Inspector was notified of this Part 21 notification on March 18, 2011.