05000250/LER-2012-001, For Turkey Point Unit 3, Regarding Containment Concrete Thickness at Spalled Patch Does Not Meet Technical Specification Design Value
| ML12160A055 | |
| Person / Time | |
|---|---|
| Site: | Turkey Point  |
| Issue date: | 05/21/2012 |
| From: | Kiley M Florida Power & Light Co |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| L-2012-229 LER 12-001-00 | |
| Download: ML12160A055 (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 |
| 2502012001R00 - NRC Website | |
text
WAY 2 12012 L-2012-229 10 CFR § 50.73 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D. C. 20555-0001 Re:
Turkey Point Nuclear Generating Station Unit 3 Docket No. 50-250 Reportable Event: 2012-001-00 Containment Concrete Thickness At Spalled Patch Does Not Meet Technical Specification Design Value The attached Licensee Event Report 05000250/2012-001-00 is submitted in accordance with 10 CFR 50.73(a)(2)(i)(B).
If there are any questions, please call Mr. Robert Tomonto at 305-246-7327.
Very truly yours, Michael W. Kiley Vice President Turkey Point Nuclear Generating Station Attachment cc:
Regional Administrator, USNRC, Region II Senior Resident Inspector, USNRC, Turkey Point Nuclear Plant Florida Power & Light Company 9760 SW 344th St., Homestead, FL 33035
NRC FORM 366 U.S. NUCLEAR REGULATORY COMMISSION APPROVED BY OMB: NO. 3150-0104 EXPIRES: 10/31/2013 (10-2010)
, the NRC may not conduct or sponsor, and a person is not required to respond to, the information collection.
- 3. PAGE Turkey Point Unit 3 05000250 1 of 3
- 4. TITLE Containment Concrete Thickness At Spalled Patch Does Not Meet Technical Specification Design Value
- 5. EVENT DATE
- 6. LER NUMBER
- 7. REPORT DATE
- 8. OTHER FACILITIES INVOLVED MNH DY YA YER SEQUENTIAL REV MOTI AY YA FACILITY NAME DOCKET NUMIBER MONTH AY YEA YEAR NUMBER NO.
MNH DY YA T
21 FACILITY NAME DOCKET NUMBER 3
21 2012 2012 -
001
- - 00 5
21 2012
- 9. OPERATING MODE I1. 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)
Defueled 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)
El 50.73(a)(2)(ii)(B)
El 50.73(a)(2)(viii)(B)
El 20.2203(a)(2)(i)
El 50.36(c)(I)(i)(A)
El 50.73(a)(2)(iii)
El 50.73(a)(2)(ix)(A)
- 10. POWER LEVEL El 20.2203(a)(2)(ii)
El 50.36(c)(1)(ii)(A)
El 50.73(a)(2)(iv)(A)
[E 50.73(a)(2)(x)
El 20.2203(a)(2)(iii)
[I 50.36(c)(2) 0l 50.73(a)(2)(v)(A)
[1 73.71(a)(4) 0l 20.2203(a)(2)(iv)
El 50.46(a)(3)(ii)
El 50.73(a)(2)(v)(B)
El 73.71(a)(5) 0%
[E 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 Since the plant drawings specify the same thickness as the Technical Specifications, literal compliance with the Technical Specifications leads to a conservative conclusion that the spall reduced the thickness of the wall to below 3.75 feet in this localized area.
Engineering evaluation of the spalled area was performed and yielded the following:
ASME Section XI, Subsection IWL-3211 states, "The condition of the concrete surface is acceptable if the responsible engineer determines that there is no evidence of damage or degradation... sufficient to warrant further evaluation or performance or repair/replacement activities." The identified condition meets the category as specified in ASME Section XI. The spalled grout is non-structural, and the rust on the exposed rebar is minor.
The identified localized area of shallow spalling will not adversely affect the integrity of the Containment building, and the building is structurally acceptable in its present condition.
CORRECTIVE ACTIONS
Repairs to the spalled location have been completed in the field.
PREVIOUS SIMILAR EVENTS
None