05000334/LER-2014-001

LER-2014-001, Shippingport, PA 15077 FirstEnergy Nuclear Operating Company
Eric A. Larson 724-682-5234
Site Vice President Fax: 724-643-8069
December 19, 2014
L-14-357

10 CFR 50.73
ATTN: Document Control Desk
U. S. Nuclear Regulatory Commission
Washington, DC 20555-0001
SUBJECT:
Beaver Valley Power Station, Unit No. 1
Docket No. 50-334, License No. DPR-66
LER 2014-001-01
Enclosed is Licensee Event Report (LER) 2014-001-01, "Beaver Valley Unit 1 Reactor
Trip due to Main Unit Transformer Failure." This event was previously reported in
accordance with 10 CFR 50.73(a)(2)(iv)(A) on March 7, 2014. This LER supplement
provides additional information gained from further internal inspections of the
transformer.
There are no regulatory commitments contained in this submittal. Any actions
discussed in this document that represent intended or planned actions are described for
the NRC's information, and are not regulatory commitments.
If there are any questions or if additional information is required, please contact
Mr. William C. Cothen, Manager, Regulatory Compliance at 724-682-4284.
Sincerely,
Eric A. Larson
Enclosure — LER 2014-001-01
cc: Mr. D. H. Dorman, NRC Region I Administrator
Mr. J. A. Krafty, NRC Resident Inspector
Ms. T. A. Lamb, NRR Project Manager
INPO Records Center (via INPO Consolidated Event System)
Mr. L. E. Ryan (BRP/DEP)
NRC FORM 366
U.S. NUCLEAR REGULATORY COMMISSION
(01-2014)
LICENSEE EVENT REPORT (LER)
(See reversefcctIVOI=rliblekr)°f
APPROVED BY OMB NO. 3150-0104 EXPIRES 01/31/2017
Estimated burden per response to comply with this mandatory information collection
request 80 hours. Reported lessons learned are incorporated into the licensing process
and fed back to industry. Send comments regarding burden estimate to the FOIA/Privacy
Section (T-5 F53), U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001,
or by Internet e-mail to infocollects.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 means used to impose an information collection
does not display a currently valid OMB control number, the NRC may not conduct or
sponsor, and a person is not required to respond to, the information collection.
1, FACILITY NAME
Beaver Valley Power Station Unit Number 1
2. DOCKET NUMBER
05000334
3. PAGE
1 OF 3
4.11TLE
Beaver Valley Unit 1 Automatic Reactor Trip due to Main Unit Transformer Failure

Event date:
Report date:
Reporting criterion:	10 CFR 50.73(a)(2)(i)(C), 50.54(x) TS Deviation 10 CFR 50.73(a)(2)(iv)(A), System Actuation
Initial Reporting
ENS 49697	10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation
3342014001R01 - NRC Website