05000400/LER-2011-002, Regarding Emergency Diesel Generator Inoperable Due Mechanical Governor Speed Setting Drift
| ML12068A198 | |
| Person / Time | |
|---|---|
| Site: | Harris  |
| Issue date: | 02/20/2012 |
| From: | Kapopoulos E Progress Energy Carolinas |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| HNP-12-024 LER 11-002-00 | |
| Download: ML12068A198 (4) | |
| 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 |
| 4002011002R00 - NRC Website | |
text
Progress Energy Serial:
10 CFR 50.73 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555 FEB 2 0 2012 SHEARON HARRIS NUCLEAR POWER PLANT, UNIT 1 DOCKET NO. 50-400/RENEWED LICENSE NO. NPF-63 LICENSEE EVENT REPORT 2011-002-00 Ladies and Gentlemen:
The enclosed Licensee Event Report (LER) 2011-002-00 is submitted in accordance with 10 CFR 50.73, paragraph (a)(2)(i)(B) as an event that resulted in a condition prohibited by plant Technical Specifications and (a)(2)(v)(D) as a condition that could have prevented fulfillment of a safety function to mitigate the consequences of an accident. This report describes an event in which the 1B-SB Emergency Diesel Generator was found to be inoperable because the engine may not have run for the entire seven day mission time. In accordance with 10 CFR 50.73(a) requirements, this LER is submitted within 60 days following discovery of the event.
This document contains no Regulatory Commitments.
Please refer any questions regarding this submittal to Mr. Dave Corlett, Supervisor -
Licensing/Regulatory Programs, at (919) 362-3137.
Sincerely, Ernest J. Kapopoulos, Jr.
Plant General Manager Harris Nuclear Plant EJK/jmd Enclosure cc:
Mr. J. D. Austin, NRC Senior Resident Inspector, HNP Mr. V. M. McCree, NRC Regional Administrator, Region II Ms. A. T. Billoch Coion, NRC Project Manager, HNP Progress Energy Carolinas, Inc.
Harris Nuclear Plant P. O. Box 165 New Hill, NC 27562
NRC FORM 366 U.S. NUCLEAR REGULATORY COMMISSION APPROVED BY OMB: NO. 3150-0104 EXPIRES: 10/31/2013 (10-2010)
, the NRC may
,sfor each bck)C not conduct or sponsor, and a person is not required to respond to, the digits/characters finformation collection.
- 3. PAGE Harris Nuclear Plant - Unit 1 05000 0400 1
OF 3
- 4. TITLE Emergency Diesel Generator Inoperable Due Mechanical Governor Speed Setting Drift.
- 5. EVENT DATE
- 6. LER NUMBER
- 7. REPORT DATE
- 8. OTHER FACILITIES INVOLVED IFACILITY NAME DOCKET NUMBER MONTH DAY YEAR YEAR SEQUENTIAL REV MONTH DAY YEAR INA 05000 NUMBER NO.
N/A 05000 FACILITY NAME DOCKET NUMBER 04 02 2011 2011 002 00 02 20 2012 N/A 05000
- 9. OPERATING MODE
- 11. THIS REPORT IS SUBMITTED PURSUANT TO THE REQUIREMENTS OF 10 CFR §: (Check all that apply) 1 fl 20.2201(b)
[J 20.2203(a)(3)(i)
[]
50.73(a)(2)(i)(C) 5 50.73(a)(2)(vii) 5 20.2201(d) 5 20.2203(a)(3)(ii)
E] 50.73(a)(2)(ii)(A) 5 50.73(a)(2)(viii)(A) 5 20.2203(a)(1) 5 20.2203(a)(4) 50.73(a)(2)(ii)(B) 5 50.73(a)(2)(viii)(B)
[] 20.2203(a)(2)(i)
E] 50.36(c)(1)(i)(A)
[3 50.73(a)(2)(iii) 5 50.73(a)(2)(ix)(A)
- 10. POWER LEVEL 20.2203(a)(2)(ii) 5 50.36(c)(1)(ii)(A) 50.73(a)(2)(iv)(A) 5 50.73(a)(2)(x) 1% 20.2203(a)(2)(iii) 5 50.36(c)(2)
F] 50.73(a)(2)(v)(A)
E] 73.71(a)(4) 100%
20.2203(a)(2)(iv) 5 50.46(a)(3)(ii)
F] 50.73(a)(2)(v)(B)
[]
73.71(a)(5)
E] 20.2203(a)(2)(v)
[3 50.73(a)(2)(i)(A)
[] 50.73(a)(2)(v)(C) 5 OTHER
[] 20.2203(a)(2)(vi) 1 50.73(a)(2)(i)(B) 23 50.73(a)(2)(v)(D)
Specify in Abstract below or in
IMMEDIATE CORRECTIVE ACTIONS
Corrective actions were taken to revise the existing engine monitoring instructions to add a periodic check and adjustment of the speed setting during engine operation. This action is complete.
Instructions were issued for Operators.
CORRECTIVE ACTIONS
Planned corrective actions are to:
- 1. Complete Work Order 2021129 to eliminate speed setting drift during engine operation.
- 2. Revise MPT-M0113, Emergency Diesel Generator Governor Replacement Maintenance procedure to include adjustment of the inactive Bodine motor to prevent output shaft movement.
PREVIOUS SIMILAR EVENTS
A review of License Event Reports for the previous five years did not reveal any similar events at the Harris Plant.