05000352/LER-2003-001, Regarding Degraded Flood Barrier Due to Reactor Enclosure Dirty Radwaste Line Cleanout Plug Not Installed
| ML030980652 | |
| Person / Time | |
|---|---|
| Site: | Limerick  |
| Issue date: | 04/01/2003 |
| From: | Levis W Exelon Nuclear |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| LER 03-001-00 | |
| Download: ML030980652 (6) | |
| Event date: | |
|---|---|
| Report date: | |
| Reporting criterion: | 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications 10 CFR 50.73(a)(2)(ix)(A) 10 CFR 50.73(a)(2)(i) 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(iv)(A), System Actuation |
| 3522003001R00 - NRC Website | |
text
Exektnsm Exelon Nuclear www exeloncorp com Nuclear Limerick Generating Station PO Box 2300 Sanatoga, PA 19464 10CFR50.73 April 1, 2003 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Limerick Generating Station, Unit I Facility Operating License No. NPF-39 NRC Docket No 50-352
Subject:
LER 1-03-001, Unit 1 Reactor Enclosure Dirty Radwaste Line Cleanout Plug Not Installed This Licensee Event Report (LER) addresses a Technical Specification (TS) violation that occurred as a result of the IA and IC subsystems of the Residual Heat Removal (RHR) system being degraded due to a breach of a flood barrier for a period that exceeded the TS allowable outage time (AOT). The inoperable condition was due to a dirty radwaste line cleanout plug that was not reinstalled properly after use.
Report Number:
1-03-001 Revision:
00 Event Date:
January 31, 2003 Discovered Date:
January 31, 2003 Report Date:
April 1, 2003 This LER is being submitted pursuant to the requirements of 10CFR50.73(a)(2)(i)(B).
If you have any questions or require additional information, please do not hesitate to contact us.
Sincerely, n. William Levis Vice President - Limerick cc: H J. Miller, Administrator Region I, USNRC A. L. Burritt, USNRC Senior Resident Inspector, LGS
NRC FORM 366 U.S. NUCLEAR REGULATORY APPROVED BY OMB NO. 3150-0104 EXPIRES 6-30-2001 (1-2C01)
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FACILITY NAME(1)
DOCKET NUMBER (2)
PAGE(3)
Limerick Generating Station, Unit 1 05000 352 1 OF 5
TITLE (4)
Degraded Flood Barrier Due To Reactor Enclosure Dirty Radwaste Line Cleanout Plug Not Installed EVENT DATE (5)
LER NUMBER (6)
REPORT DATE (7)
OTHER FACILITIES INVOLVED (8)
FACILITY NAME DOCKET NUMBER SEDUE11IAL REV MO DAY YEAR YEAR NUMBER NO MO I
ADAY I YEAR 05
_FACILITY NAME DOCKET NUMBER 01 31 2003 2003 001 00 04 01 2003 05000 OPERATING THIS REPORT IS SUBMITTED PURSUANT TO THE REQUIREMENTS OF 10 CFR (Check all that apply) (11)
MODE (9) 1 20 2201 (b)
_ 20 2203(a)(3)(11) 50 73(a)(2)(11)(B) 50.73(a)(2)(ix)(A)
POWER 20 2201 (d)
_ 20 2203(a)(4) 50.73(a)(2)(i) 50.73(a)(2)(x)
LEVEL (10) 100 20 2203(a)(1) 50 36(c)(1)(i)(A) 50.73(a)(2)(iv)(A) 73 71(a)(4) 20 2203(a)(2)(l) 50 36(c)(1)(ih)(A)
_ 50 73(a)(2)(v)(A) 73 71 (a)(5) 20 2203(a)(2)(i 50.36(c)(2) 50 73(a)(2)(')(B)
OTHER Specify inAbstractbeloworin 20 2203(a)(2)(ii) 50.46(a)(3)(i) 50 73(a)(2)(v)(C)
(if more space is required, use addibonal copies of (If more space is required, use additional copies of (If more space is required, use additional copies of (If more space is required, use addibonal copies of NRC Form 366A) (17)
Corrective Actions Planned An evaluation will be performed to identify the population of drain line cleanouts that should be controlled by the barrier breach program. This action will be complete by June 15, 2003.
The barrier breach program procedure will be revised to include the appropriate drain line cleanouts. This action will be complete by September 16, 2003.
Previous Similar Occurrences There were no previous occurrences of RHR inoperability due to improperly restored drain line cleanout plugs.
Component data:
System:
WD (Liquid Radwaste Management System)
Component:
DRN (Drain)
Manufacturer:
Z010 (Zurn)
Model number:
Z-1380-2-76