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Category:Letter type:AEP
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m INDIANA Indiana Michigan Power MICHIGAN Cook Nuclear Plant POWER One Cook Place Bridgman, Ml 49106 A unit ofAmerican Electric Power Indiana Michigan Power.com April 3, 20H AEP-NRC-2017-22 10 CFR 50.55a Docket No.: 50-316 U, S. Nuclear Regulatory Commission A TIN: Document Control Desk Washington, DC 20555-0001 Donald C. Cook Nuclear Plant Unit 2 Form OAR-1, Owner's Activity Report This letter provides a copy of Form OAR-1, Owner's Activity Report, for inservice inspection activities performed at Donald C. Cook Nuclear Plant Unit 2 through the completion of the Unit 2 Cycle 23 Refueling Outage. This report meets the requirements of the American Society of Mechanical Engineers (ASME) Code Case N-532..,5, "Repair/Replacement Activity Documentation Requirements and lnservice Inspection Summary Report Preparation and Submission Section XI, Division 1." This code case is used as an alternative to the requirements of the ASME Boiler and Pressure Vessel Code,Section XI, Article IWA-6000, as approved by Regulatory Guide 1.147, "lnservice Inspection Code Case Acceptability, ASME Section XI, Division 1," Revision 17, for the current inspection interval.
The Authorized Code Inspection Company is OneCIS Insurance Co., of Lynn, Massachusetts. The Authorized Nuclear Inspector is Timothy H. Merchant.
There are no new or revised commitments in this letter. Should you have any questions, please contact Mr. Michael K. Scarpello, Regulatory Affairs Manager, at (269) 466-2649.
Sincerely, ffJt~J4)
Mark Lloyd Engineering Vice President MBE/mll
Enclosure:
Form OAR-1, Owner's Activity Report for Donald C. Cook Nuclear Plant Unit 2 Cycle 23 Refueling Outage
U. S. Nuclear Regulatory Commission AEP-NRC-2017-22 Page 2 c: R.-J. Ancona - MPSC, w/o enclosure A W. Dietrich - NRC Washington DC MDEQ - RMD/RPS, w/o enclosure NRC Resident Inspector C. D. Pederson - NRC Region Ill A J. Williamson - AEP Ft. Wayne, w/o enclosure
ENCLOSURE TO AEP-NRC-2017-22 FORM OAR-1, OWNER'S ACTIVITY REPORT FOR DONALD C. COOK NUCLEAR PLANT UNIT 2 CYCLE 23 REFUELING OUTAGE
D. C. Cook Nuclear Unit 2 Form OAR-1 Owner's Activity Report Report Number 2-2017-4-2-03 Plant Donald C Cook Nuclear Plant, One Cook Place, Bridgman, Michigan 49106 (Name and Address of Plant)
Unit No. 2 Commercial Service Date _7_11_11_9_7_8_ _ _ _ Refueling Outage No. _ _ _ U_2_C_2_3_ _ _ _ _ __
(if applicable)
Current Inspection Interval 4th for Components and Supports (C&S) and 2nd for Containment ISi (GISI) Program (1st, 2nd, 3rd, 4th, other)
Current Inspection Period 2nd for C&S and 2nd for GISI (1st, 2nd, 3rd)
Edition and Addenda of Section XI applicable to the inspection plans 2004 Edition/No Addenda Date and Revision of inspection plans 12/18/2016 Rev 8 for C&S; and 7/20/2016 Revision 4 for GISI Edition and Addenda of Section XI applicable to repair/replacement activities, if different than the inspection plans Edition and Addenda are the same as the Inspection Plans Code Case used: N-751, for C&S and N-649 for GISI (If applicable)
CERTIFICATE OF CONFORMANCE I certify that (a) the statements made in this report are correct; (b) the examinations and tests meet the Inspection Plan as required by the ASME Code,Section XI; and (c) the repair/replacement activities and evaluations supporting the completion of U2C23
_(_R_e_fu-el-in_g_O_u-ta_g_e_N-um-be-~------1 conform to the requirements of Section XI.
Signed , ISi Program Owner Date _ _LI__.__-~.:....<.._---=;}.,O'--\l--11---------l Owners or Owner's Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and employed by One CIS Insurance Co. of ---~Ly'-n_n.;..,_MA _ _ _ _ _ _ _ _ _ _ _ __
have inspected the items described in this Owner's ActivityReport, and state that, to the best of my knowledge and belief, the Owner has performed all activities represented by this report in accordance with the requirements of Section XI.
By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the repair/replacement activities and evaluation described in this report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or loss of any kind arising from or connected with this inspection.
Date ~b3*J_o(7 Page 1of3
D. C. Cook Nuclear Unit 2 Table 1 Items with flaws or relevant conditions that required evaluation for continued service Examination Evaluation Description Item Number Item Description Cateaorv Through wall leakage occurred at the flange to pipe weld joint as a result of stress corrosion cracking driven by a N/A N/A Through wall leak at weld downstream of 2-QFl-420.
large applied stress as a result of poor initial fit-up of the flange connection. AR 2015-10993 Page 2 of 3
D. C. Cook Nuclear Unit 2 Table 2 Abstract of repair/replacement activities required for continued service Code Class Item Description Description of Work Date Complete Repair/Replacement Plan Number Through wall leak at weld downstream 3 Replace fittings and piping via welding. 9/2/2015 55470897-07 of 2-QFl-420.
Reactor Vessel Internal Baffle-Former 1 bolting found degraded during initial Replace flawed bolting found by examination. 12/12/2016 55488446-01 & 02 visual inspection Page 3 of 3