05000298/LER-2002-001, Regarding Loss of High Pressure Coolant Injection Safety Function Due to Gland Seal Condenser High Level Annunciation
| ML023240452 | |
| Person / Time | |
|---|---|
| Site: | Cooper  |
| Issue date: | 11/15/2002 |
| From: | Hutton J Nebraska Public Power District (NPPD) |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| NLS2002127 LER 02-001-00 | |
| Download: ML023240452 (6) | |
| Event date: | |
|---|---|
| Report date: | |
| 2982002001R00 - NRC Website | |
text
Nebraska Public Power District Nebraska's Energy Leader NLS2002127 November 15, 2002 U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, D.C. 20555-0001
Subject:
Licensee Event Report No. 2002-001 Cooper Nuclear Station, NRC Docket 50-298, DPR-46 The subject Licensee Event Report is forwarded as an enclosure to this letter.
Sincerely, 7J. A. Hutton Plant Manager
/rar Enclosure cc: Regional Administrator USNRC - Region IV Senior Project Manager USNRC - NRR Project Directorate IV-1 Senior Resident Inspector USNRC NPG Distribution INPO Records Center Records (V
Cooper Nuclear Station P.O. Box 98/ Brownville, NE 68321-0098 Telephone: (402) 825-3811 / Fax: (402) 825-5211 http //www nppd com
\\
Abstract
On September 18, 2002, at 1425 Central Daylight Time (CDT), with Cooper Nuclear Station (CNS) in Mode 1, Power Operation, at approximately 100 percent power (steady state), the Control Room received annunciator, "High Pressure Coolant Injection (HPCI) Gland Seal Condenser Hotwell High Level". In accordance with the alarm response procedure, the HPCI Auxiliary Oil Pump switch was placed in the Pull-to-Lock (PTL) position at 1428 CDT. The HPCI system was declared inoperable per Technical Specification This event was initiated by the failure of a non-essential Gland Seal Condenser level switch. Upon completion of replacement of the level switch and post work testing of the system, HPCI was restored to operable status at 1339 CDT on September 20, 2002.
CNS is currently investigating if the alarm response procedure step to place the Auxiliary Oil Pump switch in the PTL position is necessary.
NRC FORM 366 (7-2001)
(If more space is required, use additional copies of (If more space is required, use additional copies of (if more space is required, use additional copies of NRC Form 366A)
CORRECTIVE ACTIONS
Immediate Action
- 1.
HPCI-LS-356B was replaced, the HPCI system was restored to operable status and the LCO Condition was exited at 1339 CDT on September 20, 2002.
Long Term Actions include determining if the alarm response procedure step to place the Auxiliary Oil Pump switch in PTL is necessary. Additional corrective actions, if necessary, will be reported in a supplement to this report The supplemental report will be submitted by February 18, 2003.
v.
I ATTACHMENT 3 LIST OF REGULATORY COMMITMENTS Correspondence Number: NLS2002127 I The following table identifies those actions committed to by Nebraska Public Power I District (NPPD) in this document. Any other actions discussed in the submittal represent I intended or planned actions by NPPD. They are described for information only and are not regulatory commitments. Please notify the NL&S Manager at Cooper Nuclear Station of any questions regarding this document or any associated regulatory commitments.
COMMITTED DATE
COMMITMENT
OR OUTAGE CNS will submit a supplement to LER 2002-001 by February 18, 2003.
February 18, 2003 1-1-
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