05000397/LER-2010-001, Regarding Failure of a Secondary Containment Isolation Valve to Fully Close
| ML102571397 | |
| Person / Time | |
|---|---|
| Site: | Columbia  |
| Issue date: | 08/26/2010 |
| From: | Oxenford W Energy Northwest |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| G02-10-125 LER 10-001-00 | |
| Download: ML102571397 (4) | |
| Event date: | |
|---|---|
| Report date: | |
| Reporting criterion: | 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications 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 |
| 3972010001R00 - NRC Website | |
text
ENERGY W. Scott Oxenford
"\\
Columbia Generating Station P.O. Box 968, PE08 Richland, WA 99352-0968 Ph. 509.377.43001 F. 509.377.4150 soxenford @ energy-northwest.com August 26, 2010 G02-10-125 10 CFR 50.73 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555-0001
Subject:
COLUMBIA GENERATING STATION, DOCKET NO. 50-397 LICENSEE EVENT REPORT NO. 2010-001-00
Dear Sir or Madam:
Transmitted herewith is Licensee Event Report No. 2010-001-00 for Columbia Generating Station. This report is submitted pursuant to 10 CFR 50.73(a)(2)(i)(B). The enclosed report discusses items of reportability and corrective actions taken related to the inability to fully close a secondary containment isolation valve. This condition was discovered on June 30, 2010.
There are no commitments being made to the NRC herein. If you have any questions or require additional information, please contact Mr. D.W. Gregoire at (509) 377-8616.
Respectfully, W.S. Oxenford Vice President, Nuclear Generation & Chief Nuclear Officer
Enclosure:
Licensee Event Report 2010-001-00 cc: NRC Region IV Administrator NRC NRR Project Manager NRC Senior Resident Inspector/988C R.N. Sherman - BPN1 399 W.A. Horin -Winston & Strawn
NRC FORM 366 U.S. NUCLEAR REGULATORY COMMISSION APPROVED BY OMB NO. 3150-0104 EXPIRES 08/3112010 (9-2007)
, the NRC may digits/characters for each block) not conduct or sponsor, and a person is not required to respond to, the information collection.
- 3. PAGE Columbia Generating Station 05000397 1 OF3
- 4. TITLE Failure of a Secondary Containment Isolation Valve to Fully Close
- 5. EVENT DATE
- 6. LER NUMBER
- 7. REPORT DATE
- 8. OTHER FACILITIES INVOLVED MONTH DAY YEAR YEAR SEQUENTIALI REV MONTH DAY YEAR FACILITYNAME DOCKETNUMBER I
NUMBER NO.
05000 06 30 2010 2010- 001 - 00 08 30 2010 FACILITY NAME DOCKET NUMBER 05000
- 9. OPERATING MODE
- 11. THIS REPORT IS SUBMITTED PURSUANT TO THE REQUIREMENTS OF 10 CFR §: (Check all that apply) 1 El 20.2201(b)
El 20.2203(a)(3)(i)
El 50.73(a)(2)(i)(C)
El 50.73(a)(2)(vii)
El 20.2201(d)
El 20.2203(a)(3)(ii)
El 50.73(a)(2)(ii)(A)
El 50.73(a)(2)(viii)(A)
El 20.2203 (a)(1)
El 20.2203(a)(4)
[I 50.73(a)(2)(ii)(B)
El 50.73(a)(2)(viii)(B)
[I 20.2203(a)(2)(i)
El 50.36(c)(1)(i)(A)
El 50.73(a)(2)(iii)
[I 50.73(a)(2)(ix)(A)
- 10. POWER LEVEL C3 20.2203(a)(2)(ii)
[: 50.36(c)(1)(ii)(A) 0l 50.73(a)(2)(iv)(A)
[: 50.73(a)(2)(x) 100 El 20.2203(a)(2)(iii)
[I 50.36(c)(2)
[1 50.73(a)(2)(v)(A)
[E 73.71(a)(4)
El 20.2203(a)(2)(iv)
E] 50.46(a)(3)(ii)
El 50.73(a)(2)(v)(B)
E] 73.71 (a)(5)
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) 0 50.73(a)(2)(i)(B)
El 50.73(a)(2)(v)(D)
Specify in Abstract below or in.
26158 R4