05000348/LER-2009-001, Regarding EDG Auto Start Due to Inadvertent Relay Actuation
| ML090970217 | |
| Person / Time | |
|---|---|
| Site: | Farley  |
| Issue date: | 04/06/2009 |
| From: | Jerrica Johnson Southern Nuclear Operating Co |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| NL-09-0464 LER 09-001-00 | |
| Download: ML090970217 (6) | |
| Event date: | |
|---|---|
| Report date: | |
| Reporting criterion: | 10 CFR 50.73(a)(2)(iv)(A), System Actuation 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)(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 |
| 3482009001R00 - NRC Website | |
text
J. R.Johnson Southern Nuclear Vice Presidenl-Farley Operating Company, Inc.
Posl Office Drawer 470 Ashford, Alabama 36312-0470 Tel 3348144511 Fax 334.8144728 SOUTHERNA.
COMPANY Energy to Serve Your World~
April 6, 2009 Docket Nos.: 50-348 NL-09-0464 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D. C. 20555-0001 Joseph M. Farley Nuclear Plant - Unit 1 Licensee Event Report 2009-001-00 EDG Auto Start due to Inadvertent Relay Actuation Ladies and Gentlemen:
In accordance with the requirements of 10 CFR 50.73(a)(2)(iv)(A), Southern Nuclear Operating Company (SNC) is submitting the enclosed Licensee Event Report.
This letter contains no NRC commitments. If you have any questions, please advise.
Sincerely,
~
X~o~n9 Vice President - Farley JRJ/CHM
Enclosure:
Unit 1 Licensee Event Report 2009-001-00
U. S. Nuclear Regulatory Commission NL-09-0464 Page 2 cc:
Southern Nuclear Operating Company Mr. J. T. Gasser, Executive Vice President Mr. J. R. Johnson, Vice President - Farley Mr. D. H. Jones, Vice President - Engineering RTYPE: CFA04.054 U. S. Nuclear Regulatory Commission Mr. L. A. Reyes, Regional Administrator Mr. R. E. Martin, NRR Project Manager - Farley Mr. E. L. Crowe, Senior Resident Inspector - Farley
Joseph M. Farley Nuclear Plant - Unit 1 Licensee Event Report 2009*001*00 EDG Auto Start due to Inadvertent Relay Actuation Enclosure Unit 1 Licensee Event Report 2009*001*00
02 APPROVED BY OMB: NO. 3150-0104 EXPIRES: 08/31/2010 NRC FORM 366 U.S. NUCLEAR REGULATORY COMMISSION (9*2007)
, the NRC may not conduct or sponsor, and a person is not required to respond to, the information collection.
- 2. DOCKET NUMBER
- 1. FACILITY NAME
- 13. PAGE 05000348 1 of 3 Joseph M Farley Nuclear Plant - Unit 1
- 4. TITLE EDG Auto Start due to Inadvertent Relay Actuation
- 8. OTHER FACILITIES INVOLVED FACILITY NAME
- 7. REPORT DATE
- 6. LER NUMBER
- 5. EVENT DATE DOCKET NUMBER SEQUENTIAL REV MONTH DAY YEAR YEAR MONTH DAY YEAR 05000 NUMBER NO.
DOCKET NUMBER FACILITY NAME 2009 00 04 06 16 2009 2009 05000
- - 001
- 11. THIS REPORT IS SUBMllTED PURSUANT TO THE REQUIREMENTS OF 10 CFR§: (Check all that apply)
- 9. OPERATING MODE o 20.2201(b) o 20.2203(a)(3)(i) o 50.73(a)(2)(i)(C) o 50.73(a)(2)(vii) o 20.2201(d) o 20.2203(a)(3)(ii) o 50.73(a)(2)(ii)(A) o 50.73(a)(2)(viii)(A) 1 o 20.2203(a)(1) o 20.2203(a)(4) o 50.73(a)(2)(ii)(B) o 50.73(a)(2)(viii)(B) o 20.2203(a)(2)(i) o 50.36(c)(1 )(i)(A) o 50.73(a)(2)(iii) o 50.73(a)(2)(ix)(A) o 20.2203(a)(2)(ii) o 50.36(c)(1 )(ii)(A)
I8l 50.73(a)(2)(iv)(A) o 50.73(a)(2)(x)
- 10. POWER LEVEL o 20.2203(a)(2)(iii) o 50.36(c)(2) o 50.73(a)(2)(v)(A) o 73.71(a)(4)
[] 20.2203(a)(2)(iv) o 50.46(a)(3)(ii) o 50.73(a)(2)(v)(B) o 73.71 (a)(5) 100 o 20.2203(a)(2)(v) o 50.73(a)(2)(i)(A) o 50.73(a)(2)(v)(C) o OTHER o 20.2203(a)(2)(vi) o 50.73(a)(2)(i)(B) o 50.73(a)(2)(v)(D)
Specify in Abstract below or in (If more space is required. use additional copies of NRC Form 366A) (17)
Corrective Action
Work was suspended on EDG 1-2A. The area was walked down to ensure no other carts or materials were improperly stored in the area. A walkdown of other safety related areas of the plant was conducted to verify all stored carts were properly secured. No additional problems were identified. The relay cabinet and electrical Bus in the Diesel Generator Building that are located close to the walkways and access doors to the EDG rooms, were labeled as sensitive equipment and marked with boundary tape. Prior to work resuming on EDG 1-2A, personnel involved in the EDG 1-2A outage activities and task managers for upcoming EDG outages were briefed on the procedural requirements to secure carts when not in use.
EDG 1C was shutdown, verified to have functioned per design, and returned to emergency standby service.
The actuated relays were inspected and found to be functioning correctly. Recovery actions were initiated and no damage was found on Bus 'I H or in the relay cabinet. Normal equipment alignment was reestablished and Bus 1H was reenergized.
Operating Experience (OE) on the event has been issued.
Additional Information
Previous Similar Events LER 2008-004-00 LER 2007-001-00 Unit 1 Reactor Trip due to Loss of Reactor Coolant Pump Breaker Position Unit 2 Reactor Trip during Unit 1 Main Generator Differential Lockout Relay Testing PRINTED ON RECYCLED PAPER)