L-18-159, Station. Unit 1 Cycle 20 and Refueling Outage 20 Inservice Inspection Summary Report

Station. Unit 1 Cycle 20 and Refueling Outage 20 Inservice Inspection Summary Report

ML18169A189
Person / Time
Site:	Davis Besse
Issue date:	06/18/2018
From:	Bezilla M FirstEnergy Nuclear Operating Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
L-18-159
Download: ML18169A189 (7)

Text

FENOC 5501 North State Route 2 Oak Harbor, Ohio 43449 Mark B. Bezilla 419-321-7676 Vice President - Nuclear Fax: 419-321-7582 June 18, 2018 L-18-159 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001

SUBJECT:

Davis-Besse Nuclear Power Station, Unit No. 1 Docket No. 50-346, License No. NPF-3 Davis-Besse Nuclear Power Station. Unit 1 Cycle 20 and Refueling Outage 20 lnservice Inspection Summary Report In accordance with the 2007 Edition through the 2008 Addenda of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code, Section XI, Subsubarticle IWA-6240 and ASME Code Case N-532-5, enclosed is the summary report covering inservice inspection (ISi) activities performed during operating cycle 20 and refueling outage 20 for the Davis-Besse Nuclear Power Station.

The enclosure contains the alternate to the summary report, Form OAR-1, "Owner's Activity Report" for inservice inspections for the Class 1, 2, and 3 components. The report is for examinations performed during the cycle that were scheduled in accordance with the Fourth Interval Inspection Plan beginning September 21, 2012.

There are no regulatory commitments contained in this letter. If there are any questions or if additional information is required, please contact Mr. Thomas A Lentz, Manager- Nuclear Licensing & Regulatory Affairs, at 330-315-6810.

Jii16~

Mark B. Bezilla I

Enclosure:

ISi Owner's Activity Report, Cycle 20 and 20th Refueling Outage cc: Nuclear Regulatory Commission Region (NRC) Ill Administrator Nuclear Reactor Regulation Project Manager NRC Resident Inspector Utility Radiological Safety Board

Report No. DB-OAR1-20R Davis-Besse Nuclear Power Station Inservice Inspection Program 1R20 Owner's Activity Report FENOC .... 1 of6 ISi OWNER'S ACTIVITY REPORT CYCLE 20 & 20m REFUELING OUTAGE OUTAGE START DATE: March 3 rd, 2018 OUTAGE COMPLETION DATE: March 2?lli, 2018 REPORTING DA TE: May 31st, 2018 DAVIS-BESSE NUCLEAR POWER STATION, UNIT No. 1 5501 North State Route #2 Oak Harbor, OH 43449 OWNER: FffiSTENERGY NUCLEAR GENERATION, LLC 76 South Main St.

Akron, OH 44308 NRC DOCKET NUMBER: 50-346 OPERATION LICENSE: NPF-3 COMMERCIAL OPERATION: July 31, 1978

Report No. DB-OAR1-20R Davis-Besse Nuclear Power Station Inservice Inspection Program 1R20 Owner's Activity Report FENOC... 2of6 Prepared By: Alan Scheanwald Approved By:

Signature Date Approved By:

Report No. DB-OAR1-20R Davis-Besse Nuclear Power Station Inservice Inspection Program 1R20 Owner's Activity Report FENOC.... 3 of6 ABSTRACT The 20th cycle of operation at the Davis-Besse Nuclear Power Station began on May 9 th , 2016 and lasted until March 27th , 2018. Examinations performed during the cycle were scheduled in accordance with the 4th Interval Inspection Plan beginning September 21, 2012.

The following report is a summary of the Class 1, 2, 3 and Metal Containment (MC) inspection results performed during the 20th cycle of operation. This report was prepared in accordance with the requirements of subsubarticle IWA-6240 of Section XI of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code, 2007 Edition; with 2008 Addenda, as well as Code Case N-532-5.

The application of Code Case-N-532-5, as endorsed in Table 1, "Acceptable Section XI Code Cases" of Regulatory Guide 1.147, Revision 17 permits the issuance of an Owner's Activity Report form (OAR-1) in lieu of a traditional summary report.

Report No. DB-OAR1-20R Davis-Besse Nuclear Power Station lnservice Inspection Program 1R20 Owner's Activity Report FENOCa... 4 of6 FORM OAR-1 OWNER'S ACTIVITY REPORT Report Number DB-OAR1-20R Plant Davis-Besse Nuclear Power Station UnitNo. 1

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Commercial Service Date July 31, 1978 Refueling Outage No. IR20 (if applicable)

Current Inspection Interval 41h Interval beginning 9/21/12 Current Inspection Period 2nd Period, beginning 9/21/15 w,2 nd,3ffl)

Edition and Addenda of Section XI applicable to the inspection plan 2007 Ed./ 2008 Add (4th Int.)

Date and Revision of inspection plans 4th Interval Inspection Plan Rev. 2 (3/2/16)

Edition and Addenda of Section XI applicable to repair/replacement activities, if different than the inspection plans ........ Sam=e_______

Code Case Used: N-513-3, N-532-5, N-638-4, N-639, N-663 2 N-705. N-706-1, N-722-1, N-729-4, N-770-2 (if applicable, including cases modified by Case N-532 and later revisions)

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 completion of iRZ.O (refueling outage number) t I 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 "1]\t= H-~ *Q . r-, f. /J), of H:Att:f:o~b ' L, have inspected the items described in the Owner's Activity Report, 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. Furthennore, neither the Inspector nor his employer shall be liable in any manner f; any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

. Commission tJB tf'3-2'P "1 J:: A Ottrt O l OJJ,11.Jt .

(National Board Number and Endon;ement)

Report.No. DB-OAR] -20R Davis-Besse Nuclear Power Station Inservice Inspection Program IR20 Owner's Activity Report FENOC 5 of6 TABLE 1 ITEMS WITH FLAWS OR RELEVANT CONDITIONS THAT REQUIRED EVALUATION FOR CONTINUED SERVICE Examination Category and Item Description, Item Number Component ID Evaluation Description The following relevant conditions were noted during examination of Class 1 bolted connections.

• Valve DH11 (Condition Report 2018-02261) - Borated water leak at valve packing.

• Valve DH12 (Condition Report 2018-02257)- Borated water leak at valve packing.

RC13 Pressure Test

• Valve DH21 (Condition Report 2018-01918)- Borated water leak at 8-P & 815.10 Zone (Class 1 Bolted valve body-to-bonnet bolted connection.

Connections)

• Valve HP56 (Condition Report 2018-01917)- Borated water leak at valve packing.

• E24-1 Lower Manway (Condition Report 2018-02025) - Borated water leak at manway bolted connection.

All relevant conditions were addressed per IWA-5250 as necessary and evaluated per IWA-5251 and the site's boric acid program. In addition, they were cleaned prior to being returned to service.

Through-wall pinhole leak on CCW Heat Exchanger #3 (Service Water side) as noted in Condition Report 2018-00844. Evaluation completed in accordance with Component Cooling ASME Code Case N-705, "Evaluation Criteria for Temporary Acceptance of D-8 & D2.10 Water Heat Degradation in Moderate Energy Class 2 or 3 Vessels and Tanks" and First Exchanger#3 Energy procedure NOP-OP-1009, "Operability Determinations and Functionality Assessments".

Report No. DB*OARI -20R Davis-Besse Nuclear Power Station Inservice Inspection Program IR20 Owner's Activity Report FENOC 6of6 TABLE2 ABSTRACT OF REPAIR/REPLACEMENT ACTIVITIES REQUIRED FOR CONTINUED SERVICE Description of Repair/Replacement Code Class Item Description Work Date Completed Plan Number Plug tubes I OTSG I B Tubes folJowing 03/19/2018 200688195 examinations Plug tubes 1 OTSG 2A Tubes following 03/19/2018 200688194 examinations High Pressure Injection Replace socket 2 Drain Line Socket weld upstream of 03/12/2018 200743703 Weld valve 2 Valve SP9A3B Replace valve 03/25/2018 200745895 Replace muffler Hydrogen Dilution 3 with through-wall 02/22/2017 200610969 Blower Inlet Muffler defect Replace piping 3 Service Water Piping with through-wall 03/30/2018 200710491 defect Replace piping Strainer Blowdown 3 with through-wall 09/27/2017 200726604 Piping, Fl5-l defect Replace piping Strainer Blowdown 3 with through*wall 10/20/2017 200728350 Piping, F15-3 defect