05000244/LER-2006-007, R. E. Ginna Nuclear Power Plant Regarding Main Steam Safety Valve Setpoint Exceedance

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R. E. Ginna Nuclear Power Plant Regarding Main Steam Safety Valve Setpoint Exceedance
ML063470031
Person / Time
Site: Ginna Constellation icon.png
Issue date: 12/06/2006
From: Korsnick M
Constellation Energy Group
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
LER 06-007-00
Download: ML063470031 (7)


LER-2006-007, R. E. Ginna Nuclear Power Plant Regarding Main Steam Safety Valve Setpoint Exceedance
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
2442006007R00 - NRC Website

text

Maria Korsnick Site Vice President 0

Constellation Energy-Generation Group R.E. Ginna Nuclear Power Plant, LLC 1503 Lake Road Ontario, New York 14519-9364 585.771.3494 585.771.3943 Fax maria.korsnick@constellation.com December 6, 2006 U.S. Nuclear Regulatory Commission Washington, DC 20555 ATTENTION:

SUBJECT:

Document Control Desk R.E. Ginna Nuclear Power Plant Docket No. 50-244 LER 2006-007, Main Steam Safety Valve Setpoint Exceedance The attached Licensee Event Report (LER) 2006-007 is submitted in accordance with 10 CFR 50.73, Licensee Event Report System. A supplement to this LER is planned to be submitted by March 2, 2007. Should you have questions regarding the information in this submittal, please contact Mr.

Robert Randall at (585) 771-3734 or robert.randall @ constellation.com.

Very truly y urs, Mary G. Korsnick Attachments: (1)

(2)

LER 2006-007 Regulatory Commitments cc:

S. J. Collins, NRC P.D. Milano, NRC Resident' Inspector, NRC (Ginna) 100

([U-7v 2-LER 2006-007 Main Steam Safety Valve Setpoint Exceedance

NRC FORM 366 U.S. NUCLEAR REGULATORY COMMISSION APPROVED BY OMB: NO. 3150-0104 EXPIRES: 06/30/2007 (6-2004)

, the NRC may not conduct digits/characters for each block)or sponsor, and a person is not required to respond to, the information I3. PAGE R.E. Ginna Nuclear Power Plant 05000244 1 OF 4

4. TITLE Main Steam Safety Valve Setpoint Exceedance
5. EVENT DATE
6. LER NUMBER
7. REPORT DATE
8. OTHER FACILITIES INVOLVED MONTH DAY YEAR YEAR SEQUENTIAL REV MONTH ACILITY NAME DOCKET NUMBER NUMBER NO.

05000 I_____II__FACILITY NAME DOCKET NUMBER 10 07 2006 2006 - 007 -

00 12 06 2006 05000

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

[1 20.2201(b)

El 20.2203(a)(3)(i)

El 50.73(a)(2)(i)(C)

El 50.73(a)(2)(vii)

[1 20.2201(d)

El 20.2203(a)(3)(ii)

El 50.73(a)(2)(ii)(A)

[] 50.73(a)(2)(viii)(A)

[I 20.2203(a)(1)

El 20.2203(a)(4)

El 50.73(a)(2)(ii)(B)

El 50.73(a)(2)(viii)(B)

El 20.2203(a)(2)(i)

El 50.36(c)(1)(i)(A)

E] 50.73(a)(2)(iii)

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

10. POWER LEVEL [E

20.2203(a)(2)(ii)

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

[3 50.73(a)(2)(iv)(A)

El 50.73(a)(2)(x)

El 20.2203(a)(2)(iii)

El 50.36(c)(2)

El 50.73(a)(2)(v)(A)

El 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) 90 El 20.2203(a)(2)(v)

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

El 50.73(a)(2)(v)(C)

El OTHER El 20.2203(a)(2)(vi)

[

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)

V.

CORRECTIVE ACTIONS

A.

ACTION TAKEN TO RETURN AFFECTED SYSTEMS TO PRE-EVEN'T NORMAL STATUS:

Immediate actions included adjusting main steam safety valves 3513 and 3508 to within +/-1% of their required set lift pressure.

The main steam safety valves were subsequently tested on October 31, 2006 during the plant startup from the refueling outage, and all of the valves exhibited a reduced as-found setpoint (within the +1%

/- 3% allowed range).

B.

ACTION TAKEN OR PLANNED TO PREVENT RECURRENCE:

The Long term corrective actions and a final cause determination will be documented in a supplemental LER for both of the subject main steam safety valves.

VI.

ADDITIONAL INFORMATION

A.

FAILED COMPONENTS:

No other structures, systems, or components failed as result of this event.

B.

PREVIOUS LERs ON SIMILAR EVENTS:

A similar Ginna LER event historical search was conducted which resulted in no similar events.

C.

THE ENERGY INDUSTRY IDENTIFICATION SYSTEM (EIIS) COMPONENT FUNCTION IDENTIFIER AND SYSTEM NAME OF EACH COMPONENT OR SYSTEM REFERRED TO IN THIS LER:

COMPONENT IEEE 803 IEEE 805 FUNCTION NUMBER SYSTEM IDENTIFICATION Valve, Relief RV SB Regulatory Commitments REGULATORY COMMITMENT DUE DATE Submit supplemental LER.

March 2, 2007.