ML13077A334

Part 21 Report - Initial Notification for Flowserve Model 28KXL Pump Impeller Defect

ML13077A334
Person / Time
Site:	Limerick
Issue date:	03/15/2013
From:	Exelon Generation Co
To:	Office of Nuclear Reactor Regulation
References
48824
Download: ML13077A334 (2)

Text

03/15/2013 U.S. NuclearRegulatory Commission OperationsCenter Event Report V Page I Power Reactor Event# 48824 Site: LIMERICK Notification Date/ Time: 03/15/2013 17:23 (EDT)

Unit: 1 2 Region: 1 State : PA Event Date I Time: 02/21/2013 10:12 (EDT)

Reactor Type: [1] GE-4,[2] GE-4 Last Modification: 03/15/2013 Containment Type: MARK II MARK II NRC Notified by: MARK ARNOSKY Notifications: GLENN DENTEL R1DO HQ Ops Officer: DONG HWA PARK PART 21 RX GROUP EMAIL Emergency Class: NON EMERGENCY 10 CFR Section:

21.21 (d)(3)(i) DEFECTS AND NONCOMPLIANCE Unit Scram Code RX Crit nit Power Initial RX Mode Curr Power Current RX Mode 1 N Yes 100 Power Operation 1100 Power Operation 2 N Yes 100 Power Operation 100 Power Operation PART 21 REPORT - INITIAL NOTIFICATION FOR FLOWSERVE MODEL 28KXL PUMP IMPELLER DEFECT "This Part 21 initial notification addresses a pump impeller defect that resulted in a post maintenance test (PMT) failure. The OC RHR Service Water Pump was being replaced due to degraded performance which caused an In-Service Test (IST) failure. The replacement pump impeller received from the supplier had not been machined to the purchase order specifications. The IST of the new pump could not be completed since the required test conditions could not be established. The pump was later replaced and the IST was completed successfully. The pump was declared operable on March 2, 2013.

"This Part 21 Initial Notification is being submitted pursuant to the requirements of 10CFR21.21 (d)(3)(i)."

The licensee has notified the NRC Resident Inspector.

I4?Y~

NRC FORM 361 U.S. NUCLEAR REGULATORY COMMISSION OPERATIONS CENTER REACTOR PLANT EVENT NOTIFICATION WORKSHEET EN 48824 NRC OPERATION TELEPHONE NUMBER: PRIMARY - 301-816-5100 or 800-532-3469*. BACKUPS - list) 301-951-0550 or 800-449-3694".

l2nd) 301-415-0550 and 3rd 301-415-0553 *l"oensees who maintain their own ETS are ovided these telephone numbers.

NOTIFICATION TIME FACILITY OR ORGANIZATION UNIT NAME OF CALLER CALL BACK 0 1723 EDT4884 Limerick 1& 2 Mark Amosky (jfO 718-2125 EVENT TIME &ZONE EVENT DATE POWER/MOOE BEFORE POWER/MODE AFTER 1012 02/21/2013 100%/1 100%/i EVENT CLASSIFICATIONS 1-Hr. Non-Emersency 10 CFR 50.72(b I 6] (vXA) Sate S/ Capabdsy AINA A.I,NB O GENERAL EMERGENCY GEN/AAEC 0 TS Deviation ADEV Q~(vXB) RHR Capabiliy D SITE AREA EMERGENCY SIT/AAEC 4-Hr. Non-Emergency 10 CFR 80.72(bX2) 01 (vXC) Con'oI of Red Release AJNC 0i ALERT ALE/AAEC 040() TS Reduied 5/0 ASIIU [DI (vXD) Aacadent Mitigation AINO 0 UNSA EVENT UNU/AAEC [3 (iv)(A) ECCS Disctiwgs to RCS -ACCS C](xii) Offsite Medical AIMED O 50.72 NON-EMERGENCY (see next columns) C] (ovxS) RPS Actustion (scrami)0 (xii) Loss CormhA~smTtVeaJp ACOM

_b PHYSICAL-SECURITY (73.71) 0OO (mx) Oftie Notificatin APRE 0-0ay Optional 10 CFR 50.73(a)(1) o

..MATERIAL'EXPOSURE ..

FITNESS FOR DUTY

'??

HFIT Q 8.-Hr. Non-Emergency 10 CFR S0.72(b(3) O Invalid Specified System Actuatron AINV (6XA) Degrlede Condition ADEG Other Unspecified Requirement (Identify)

OiOTHER UNSPECIFIED REQMT. (see last column) Q (u)XB) Unanalyzed Condition AUNA 10CFR21,21(d)(3)(i) NONR

] INFORMATION ONLY NINF ivA pecifd System Actuatio AESF 1 NONR DESCRIPTION Include, Systems affected, actusbons and 9mir Initiating signals, causes, effect of event on plant, actions taken or planned. etc. (COntnue on bac*)

Part 21 Initial Notification for Flowserve Model 28KXL Pump Impeller Defect This Part 21 initial notification addresses a pump impeller defect that resulted in a post maintenance test (PMT) failure. The OC RHR Service Water Pump was being replaced due to degraded performance which caused an In-Service Test (IST) failure.

The replacement pump impeller received from the supplier had not been machined to the purchase order specifications. The IST of the new pump could not be completed since the required test conditions could not be established. The pump was later replaced and the IST was completed successfully. The pump was declared operable on March 2, 2013.

This Part 21 Initial Notification is being submitted pursuant to the requirements of 10CFR21.21 (d)(3)(i).

NOTIFICATIONS YES NO WILL BE ANYTHING UNUSUAL OR NO NRC RESIDENT_ . NOT UNDERSTOOD?

STATE(s) . .. L] .. DID ALL SYSTEMS 2] YES El NO (Explain above)

LOCAL, - . . . ] FUNCTION AS REQUIRED?

OTHER GOV AGENCIES MEDIAIP'RESS RELEASE 0

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. .. . 0.

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21 Q

o Q MODE OF

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.. .............. OPEWTION 1UNTILCCRRECTED 100%

ESTIMATED RESARDATE (MM0 E 1 T N/A N/AYES ADDITIONAL INFO ON BACK

[~ NO NRC FORM 361 (12,2000)

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