05000529/LER-2008-001, Regarding Inoperable Boron Dilution Alarm Monitoring System

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Regarding Inoperable Boron Dilution Alarm Monitoring System
ML082110398
Person / Time
Site: Palo Verde Arizona Public Service icon.png
Issue date: 07/21/2008
From: Mims D
Arizona Public Service Co
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
102-05872-DCM/DFH LER 08-001-00
Download: ML082110398 (5)


LER-2008-001, Regarding Inoperable Boron Dilution Alarm Monitoring System
Event date:
Report date:
Reporting criterion: 10 CFR 50.73(a)(2)(i)

10 CFR 50.73(a)(2)(vii), Common Cause Inoperability

10 CFR 50.73(a)(2)(ii)(A), Seriously Degraded

10 CFR 50.73(a)(2)(viii)(A)

10 CFR 50.73(a)(2)(ii)(B), Unanalyzed Condition

10 CFR 50.73(a)(2)(viii)(B)

10 CFR 50.73(a)(2)(iii)

10 CFR 50.73(a)(2)(ix)(A)

10 CFR 50.73(a)(2)(iv)(A), System Actuation

10 CFR 50.73(a)(2)(x)

10 CFR 50.73(a)(2)(v)(A), Loss of Safety Function - Shutdown the Reactor

10 CFR 50.73(a)(2)(v)(B), Loss of Safety Function - Remove Residual Heat

10 CFR 50.73(a)(2)(i)(A), Completion of TS Shutdown

10 CFR 50.73(a)(2)(v), Loss of Safety Function

10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications
5292008001R00 - NRC Website

text

10 CIFR 50.73

  • A-*

A subsidiary of Pinnacle West Capital Corporation Dwight C. Mims Mail Station 7605 Palo Verde Nuclear Vice President Tel. 623-393-5403 P.O. Box 52034 Generating Station Regulatory Affairs and Plant Improvement Fax 623-393-6077 Phoenix, Arizona 85072-2034 102-05872-DCM/DFH July 21, 2008 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001

Dear Sirs:

Subject:

Palo Verde Nuclear Generating Station (PVNGS)

Unit 2 Docket No. STN 50-529 License No. NPF 51 Licensee Event Report 2008-001-00 Attached, please find Licensee Event Report (LER) 50-529/2008-001-00 that has been prepared and submitted pursuant to 10 CFR 50.73. This LER reports a condition prohibited by technical specifications and that could have prevented the fulfillment of a safety function because of an inoperable boron dilution alarm system.

In accordance with 10 CFR 50.4, copies of this LER are being forwarded to the NRC Regional Office, NRC Region IV and the Senior Resident Inspector. If you have questions regarding this submittal, please contact James A. Proctor, Section Leader, Regulatory Affairs, at (623) 393-5730.

Arizona Public Service Company makes no commitments in this letter.

Sincerely, DCM/JAP/DFH/gat Attachment cc:

E. E. Collins Jr.

NRC Region IV Regional Administrator M. T. Markley NRC NRR Project Manager - (send electronic and paper)

R. I. Treadway NRC Senior Resident Inspector for PVNGS A member of the STARS (Strategic Teaming and Resource Sharing) Alliance Callaway

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Palo Verde

  • South Texas Project 0 Wolf Creek

NRC FORM 366 U.S. NUCLEAR REGULATORY COMMISSION APPROVED BY OMB: NO. 3150-0104 EXPIRES: 08/31/2010 (9-2007)

, the NRC may oeach not conduct or sponsor, and a person is not required to respond to, the digits/characters for e block) information collection.

13. PAGE Palo Verde Nuclear Generating Station (PVNGS) Unit 2 05000529I 1 OF 4
4. TITLE Inoperable Boron Dilution Alarm Monitoring System
5. EVENT DATE
6. LER NUMBER
7. REPORT DATE
8. OTHER FACILITIES INVOLVED FAC ILITL NAME DOCKE TNUMB MONTH DAY YEAR YEAR SEQUENTIAL REV MONTH DAY YEAR NUMBER NO.

05000 FACILITY NAME DOCKET NUMBER 05 21 08 2008 001 -

00 07 21 2008 05000

9. OPERATING MODE
11. THIS REPORT IS SUBMITTED PURSUANT TO THE REQUIREMENTS OF 10 CFR§: (Check all that apply)

El 20.2201(b)

El 20.2203(a)(3)(i)

[I 50.73(a)(2)(i)(C)

[I 50.73(a)(2)(vii) 5 and 6 El 20.2201(d)

El 20.2203(a)(3)(ii)

[E 50.73(a)(2)(ii)(A)

El 50.73(a)(2)(viii)(A)

El 20.2203(a)(1)

El 20.2203(a)(4)

El 50.73(a)(2)(ii)(B) 0l 50.73(a)(2)(viii)(B)

[I 20.2203(a)(2)(i)

[I 50.36(c)(1)(i)(A)

[I 50.73(a)(2)(iii)

El 50.73(a)(2)(ix)(A)

10. POWER LEVEL [0 20.2203(a)(2)(ii)

[: 50.36(c)(1)(ii)(A)

[: 50.73(a)(2)(iv)(A)

El 50.73(a)(2)(x)

El 20.2203(a)(2)(iii)

[I 50.36(c)(2)

Z 50.73(a)(2)(v)(A)

. [1 73.71(a)(4)

El 20.2203(a)(2)(iv)

El 50.46(a)(3)(ii)

El 50.73(a)(2)(v)(B)

El 73.71(a)(5) 00 El 20.2203(a)(2)(v)

El 50.73(a)(2)(i)(A)

[I 50.73(a)(2)(v)(C)

[I OTHER C1 20.2203(a)(2)(vi)

[0 50.73(a)(2)(i)(B)

El 50.73(a)(2)(v)(D)

Specify in Abstract below or in (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 for this event are still being evaluated and will be identified in the supplement to this LER.

8. PREVIOUS SIMILAR EVENTS

No similar conditions have occurred in the prior three years.

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llIý PUM -366A (9-2007)

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