ML17170A102: Difference between revisions

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{{Adams
#REDIRECT [[05000316/LER-2016-002]]
| number = ML17170A102
| issue date = 06/13/2017
| title = Cancellation of LER 16-002-00 for Donald C. Cook Nuclear Plant, Unit 2 Regarding Emergency Diesel Generators Declared Inoperable Due to a Manufacturing Design Issue
| author name = Lies Q S
| author affiliation = American Electric Power, Indiana Michigan Power Co
| addressee name =
| addressee affiliation = NRC/Document Control Desk, NRC/NRR
| docket = 05000316
| license number =
| contact person =
| case reference number = AEP-NRC-2017-32, LER 16-002-00
| document type = Letter
| page count = 2
}}
 
=Text=
{{#Wiki_filter:L __ *= IN DIANA MICHIGAN POWER A unit of American Electric Power June 13, 2017 Docket No.: 50-316 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk
* 11555 Rockville Pike Rockville, MD 20852 Donald C. Cook Nuclear Plant Unit 2 Indiana Michigan Power Cook Nuclear Plant One Cook Place Bridgman, Ml 49106 lndianaMichiganPower.com AEP-NRC-2017-32 10 CFR 50.73 CANCELLATION OF LICENSEE EVENT REPORT 316/2016-002-00 Emergency Diesel Generators Declared Inoperable Due to a Manufacturing Design Issue In accordance with the guidance provided by NU REG 1022, Revision 3, Event Report Guidelines 10 CFR 50.72 and 50.73, Sections 2.8 and 5.1.2, Indiana Michigan Power Company (l&M) is cancelling the following Licensee Event Report (LER): LER 316/2016-002-00:
Emergency Diesel Generators Declared Inoperable Due to a Manufacturing Design Issue By letter dated February 9, 2017, l&M, the licensee for Donald-C.
Cool<' Nuclear Plant Unit 2 submitted LER 316/2016-002-00, "Emergency Diesel Declared Inoperable Due to a Manufacturing Design Issue," to the Nuclear Regulatory Commission via letter AEP-NRC-2017-05.
The LER was reported under 50. 73(a)(2)(v)(D}, Event or Condition that Could Have Prevented Fulfillment of a Safety Function.
* On December 21, 2016, with Unit 1 in Mode 1 at 100 percent power and Unit 2 in Mode 4 during a refueling outage, the Unit 1 CD Emergency Diesel Generator (EOG}, Unit-2 AB EOG, and Unit2 CD EOG were declared inoperable due to a discovered design and manufacturing issue involving multiple diesel fuel injector pump delivery valve holders (DVH) installed on each EOG. As a result of both Unit .2 EDGs concurrently being declared inoperable, this met the reporting requirements for an Event or Condition that Could Have Prevented Fulfillment of a Safety Function.
Subsequent endurance testing of selected DVHs was performed to evaluate the expected degradation during the EOG mission and determined that the discovered design and manufacturing issue would not have prevented the EDGs from performing their -intended safety functions.
Therefore, all EDGs were OPERABLE and did not result in a loss of safety function in connection with mitigating the consequences of an accident.
Based on the endurance testing results, l&M is canceli!'.lg LER 316/2016-002-00.
The Event Notification (ENS #52456) associated with this LER was retracted on May 22, 2017.
U.S. Nuclear Regulatory Commission Page 2 There are no commitments contained in this submittal.
AEP-NRC-2017-32 Should you Rave any questions, please contact Mr. Michael K. Scarpello, Regulatory Affairs Manager, at (269) 466-2649.
Sincerely, Site Vice President MH/mll c: R. J. Ancona -MPSC MDEQ -RMD/RPS NRC Resident Inspector C. D. Pederson -NRC Region Ill J. K. Rankin -NRC Washington, DC A. J. Williamson -AEP Ft. Wayne _J}}

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