05000219/LER-1917-003, Regarding Automatic Scram While Subcritical Due to Low Reactor Level
| ML17249A123 | |
| Person / Time | |
|---|---|
| Site: | Oyster Creek |
| Issue date: | 08/31/2017 |
| From: | Gillin M Exelon Generation Co |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| RA-17-053 LER 17-003-00 | |
| Download: ML17249A123 (4) | |
| Event date: | |
|---|---|
| Report date: | |
| Reporting criterion: | 10 CFR 50.73(a)(2)(ii)(A), Seriously Degraded 10 CFR 50.73(a)(2)(viii)(B) 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)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(i)(A), Completion of TS Shutdown 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability |
| 2191917003R00 - NRC Website | |
text
f Exelon Generation RA-17-053 August 31, 2017 U.S. Nuclear Regulatory Commission Attn: Document Control Desk or 0-881 One White Flint North 11555 Rockville Pike Rockville, MD 20852 Oyster Creek Nuclear Generating Station Renewed Facility Operating License No. DPR-16 NRG Docket No. 50-219 Oyster Creek Route 9 South P.O. Box388 Forked River, NJ 08731 10 CFR 50.73
Subject:
Licensee Event Report (LER) 2017-003-00, "Automatic Scram while Subcritical due to Low Reactor Level."
Enclosed is LER 2017-003-00 reporting the automatic reactor scram while subcritical due to low reactor water level, which occurred on July 3, 2017.
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 regulatory commitments made in this LER submittal.
Should you have any questions concerning this report, please contact Gary Flesher, Regulatory Assurance Manager, at (609) 971-4232.
Respectfully, Michael F. Gillin Plant Manager Oyster Creek Nuclear Generating Station Enclosure: NRG Form 366, LER 2017-003-00 cc:
Administrator, NRG Region I NRC Senior Resident Inspector - Oyster Creek Nuclear Generating Station NRC Project Manager - Oyster Creek Nuclear Generating Station
NRC FORM 366 U.S. NUCLEAR REGULATORY COMMISSION APPROVED BY OMB: NO. 3150-0104 EXPIRES: 10/31/2018 (06-2016)
Estimated burden per response to comply with this mandatory collection request 80 hours9.259259e-4 days <br />0.0222 hours <br />1.322751e-4 weeks <br />3.044e-5 months <br />.
t>-'t.'RR£C(lt, Reported lessons learned are incorporated into the licensing process and fed back to industry.
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LICENSEE EVENT REPORT (LER)
Send comments regarding burden estimate to the FOIA, Privacy and Information Collections
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l Branch (T-5 F53), U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001, or by e-mail (See Page 2 for required number of digits/characters for each block) to lnfocollects.Resource@nrc.gov, and to the Desk Officer, Office of Information and Regulatory Affairs, NEOB-10202, (3150-0104), Office of Management and Budget, Washington, DC 20503. If a (See NUREG-1022, R.3 for instruction and guidance for completing this form means used to impose an information collection does not display a currently valid OMB control httQ://www.nrc.gov/reading-rm/doc-collections/nuregs/staff/sr1022/r3l) number, the NRC may not conduct or sponsor, and a person is not required to respond to, the information collection.
- 3. PAGE Oyster Creek Nuclear Generating Station 05000219 1 OF 3
- 4. TITLE Automatic Scram while Subcriticai due to low Reactor level
- 5. EVENT DATE
- 6. LEA NUMBER
- 7. REPORT DATE
- 8. OTHER FACILITIES INVOLVED I
SEQUENTIAL I REV FACILITY NAME DOCKET NUMBER MONTH DAY YEAR YEAR NUMBER NO.
MONTH DAY YEAR N/A 05000 FACILITY NAME DOCKET NUMBER 07 03 2017 2017 - 003
- - 00 08 31 2017 N/A 05000
- 9. OPERATING MODE
- 11. THIS REPORT IS SUBMITTED PURSUANT TO THE REQUIREMENTS OF 10 CFR §: (Check all that apply)
D 20.2201 (b)
D 20.2203(a)(3)(i)
D 50.73(a)(2)(ii)(A)
D 50. 73(a)(2)(viii)(A)
N D 20.2201 (d)
D 20.2203(a)(3)(ii)
D 50. 73(a)(2)(ii)(B)
D 50.73(a)(2)(viii)(B)
D 20.2203(a)(1)
D 20.2203(a)(4)
D 5o.73(a)(2)(iii)
D 50.73(a)(2)(ix)(A)
D 20.2203(a)(2)(i)
D 50.36(c)(1)(i)(A) 1:8:1 50. 73(a)(2)(iv)(A)
D 50.73(a)(2)(x)
- 10. POWER LEVEL D 20.2203(a)(2)(iil D 50.36(c)(1)(ii)(A)
D 50.73(a)(2)(v)(A)
D 73.11(a)(4l D 20.2203(a)(2)(iiil D 5o.36(c)(2)
D 50.73(a)(2)(v)(B)
D 73.11(a)(5l D 20.2203(a)(2)(1v)
D oo.4a(a)(3)(n>
D 50.73(a)(2)(v)(C)
- D 1a.n(a)(1) 00 D 20.2203(a)(2)(v)
D 50.73(a)(2)(i)(A)
D 50.73(a)(2)(v)(D)
D 73.n(a)(2)(i)
D 20.2203(a)(2)(vi)
D 50.73(a)(2)(i)(B)
D 50.73(a)(2)(vii)
D 73.n(a)(2)(ii)
- ~ti4.f'.~;;~fB!~¥:~'~.~;~.e:~:~;~.!1i~~~~
D
- 50. 73(a)(2)(i)(C)
D OTHER Specify in Abstract below or in
Corrective Actions
SEQUENTIAL NUMBER 003 REV NO.
00
- 1) The station revised the Abnormal Operating Procedures for MCR operators to verify plant conditions are stable prior to resetting the scram signal.
- 2) Reinforcement of the requirements and proper use of operator human performance fundamental tools through training and evaluations.
- 3) Reinforcement of teamwork in MCR operations during training scenarios.
Previous Occurrences
LER 2013-005-00 was submitted when Oyster Creek Nuclear Generating Station, while shut down, experienced an automatic reactor scram when operators placed the Mode Switch from Refuel to Shutdown. The actuation was a result of jumpers not installed as required by procedure to prevent a full scram for this Mode Switch change.
Component Data Component N/A IEEE 805 System ID N/A IEEE 803A Component N/A Page_3_ of _3_