05000219/LER-2009-004, Regarding Establishment of Secondary Containment Boundary Contrary to Technical Specification Requirements
| ML092010134 | |
| Person / Time | |
|---|---|
| Site: | Oyster Creek |
| Issue date: | 07/13/2009 |
| From: | Massaro M Exelon Nuclear |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| RA-09-053 LER 09-004-00 | |
| Download: ML092010134 (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 |
| 2192009004R00 - NRC Website | |
text
Exelokn Oyster Creek Generating Station www.exeloncorp.com Nuclear Route 9 South PO Box 388 Forked River, NJ 08731 10 CFR 50.73 July 13, 2009 RA-09-053 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 - 0001 Oyster Creek Nuclear Generating Station Facility Operating License No. DPR-16 NRC Docket No. 50-219
Subject:
Licensee Event Report (LER) 2009-004-00, Establishment of Secondary Containment Boundary Contrary to Technical Specification Requirements Enclosed is Liceinsee Event Report 2009-004-00, Establishment of Secondary Containment Boundary Contrary to Technical Specification Requirements. This event did not affect the health -and safety of the public or plant personnel. This event did not result in a safety system functional failure. There are no new regulatory commitments made in this LER submittal.
If any further information or assistance is needed, please contact James Barstow, Regulatory Assurance Manager at 609-971-4947.
Sincerely, Michael J. Massaro, Vice President, 'Oyster-Creek Nuclear Generating Station Enclosure':
NRC Form 366, LER 2009-004-00 cc:
Regional Administrator, USNRC Region I USNRC Project Manager.,"Oyster Crieek
- - USNRC Senior Resident Inspector, Oyster Creek' File No. 09055 A-],4
NRC FORM 366 U.S. NUCLEAR REGULATORY COMMISSION APPROVED BY OMB: NO. 3150-0104 EXPIRES: 08/31/2010 (9-2007)
, the NRC may digits/characters for each block) not conduct or sponsor, and a person is not required to respond to, the infnrm;;tinn.nnll~r.tion.
- 3. PAGE Oyster Creek, Unit 1 05000219 1 OF 3
- 4. TITLE Establishment of Secondary Containment Boundary Contrary to Technical Specification Requirements
- 5. EVENT DATE
- 6. LER NUMBER
- 7. REPORT DATE
- 8. OTHER FACILITIES INVOLVED M SEQUENTIAL, REV FACILITY NAME DOCKET NUMBER MONTH DAY YEAR YEAR NUMBER NO.
MONTH DAY YEAR N/A N/A FACILITY NAME DOCKET NUMBER 10 25 2008 2009 004 00 7
13 2009 N/A N/A
- 9. OPERATING MODE
- 11. THIS REPORT IS SUBMItTED PURSUANT TO THE REQUIREMENTS OF 10 CFR §: (Checkallthat apply)
N 20.2201(b)
[I 20.2203(a)(3)(i)
El 50.73(a)(2)(i)(C)
El 50.73(a)(2)(vii)
N El 20.2201(d)
El 20.2203(a)(3)(ii)
El 50.73(a)(2)(ii)(A)
[I 50.73(a)(2)(viii)(A)
El 20.2203(a)(1)
[3 20.2203(a)(4) 0l 50.73(a)(2)(ii)(B)
[I 50.73(a)(2)(viii)(B)
[] 20.2203(a)(2)(i)
El 50.36(c)(1)(i)(A) 0l 50.73(a)(2)(iii)
El 50.73(a)(2)(ix)(A)
- 10. POWER LEVEL [I 20.2203(a)(2)(ii)
El 50.36(c)(1)(ii)(A)
El 50.73(a)(2)(iv)(A)
[I 50.73(a)(2)(x)
[1 20.2203(a)(2)(iii)
El 50.36(c)(2)
El 50.73(a)(2)(v)(A)
El 73.71(a)(4) 000 El 20.2203(a)(2)(iv)
El 50.46(a)(3)(ii)
El 50.73(a)(2)(v)(B)
[I 73.71(a)(5)
El 20.2203(a)(2)(v)
El 50.73(a)(2)(i)(A)
[E 50.73(a)(2)(v)(C)
El OTHER El 20.2203(a)(2)(vi)
Z 50.73(a)(2)(i)(B)
El 50.73(a)(2)(v)(D)
Specify in Abstract below or in
Cause of Event
The apparent cause of this event was that the Technical Specification definition note was in a confusing format. Due to the vagueness of the relationship of a note to Technical Specification Definition 1.14, Secondary Containment Integrity, and the Technical Specification LCO 3.4.B.1, Secondary Containment, the preparer and reviewers of the associated 10 CFR 50.59 Evaluation did not recognize that re-establishing the secondary boundary to not rely upon the trunnion room door was a literal change in the Technical Specification.
Corrective Actions
A License Amendment Request will be submitted to revise Technical Specification Definition 1.14 to enable moving secondary containment boundary to trunnion room walls, ceiling, floor, and associated penetrations during refueling outages and to reformat the definition not to use a non-standard note.
Lessons learned will be provided for a briefing on the lessons learned from this event will be provided to all 50.59 qualified personnel and incorporated in future 50.59 training.
Previous Occurrences
There have been no similar Licensee Event Reports events at Oyster Creek in the last three years, where technical specifications were changed by plant permanent or temporary modifications without prior NRC approval.
Component Failure Data
NonePRINTED ON RECYCLED PAPERPRINTED ON RECYCLED PAPER