RA19-034, Post-Outage 90-Day Inservice Inspection (ISI) Summary Report

Post-Outage 90-Day Inservice Inspection (ISI) Summary Report

ML19158A483
Person / Time
Site:	LaSalle
Issue date:	06/07/2019
From:	Washko J Exelon Generation Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
RA19-034
Download: ML19158A483 (5)

Text

LaSalle County Station Exelon Generation ~ 2601 North 2 1'1 Road Marseilles , IL 61341 815-415-2000 Telephon e www. exeloncorp.com RA19-034 10 CFR 50.55a(g)

June 7, 2019 United States Nuclear Regulatory Commission Attention: Document Control Desk Washington, D.C. 20555 LaSalle County Station, Unit 2 Renewed Facility Operating License No. NPF-18 NRG Docket No. 50-374

Subject:

Post-Outage 90-Day lnservice Inspection (ISi) Summary Report

Reference:

1. Letter from Susan R. Landahl (Exelon) to the U.S. Nuclear Regulatory Commission, "In Service Inspection (ISi) Intervals," dated September 22, 2006 Exelon Generation Company, LLC (EGG) provides the attached Post-Outage 90-Day lnservice Inspection (ISi) Summary Report for LaSalle County Station Unit 2, submitted in accordance with 10 CFR 50.55a, "Codes and Standards," and the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code Case N-532-5, "Repair/Replacement Activity Documentation Requirements and lnservice Inspection Summary Report Preparation and Submission Section XI, Division 1."

The attached Post-Outage 90-Day ISi Summary Report is for examinations and repair/replacement activities performed between the end of LaSalle County Station Unit 2 sixteenth refueling outage on March 9, 2017, through the end of the seventeenth refueling outage (L2R17). This refueling outage started on February 18, 2019 and ended on March 9, 2019. This refueling outage was the first outage scheduled for the First Inspection Period of the Fourth lnservice Inspection Interval, and the Third Containment lnservice Inspection Interval, effective from October 1, 2017, through September 30, 2020, for LaSalle County Station Unit 2.

LaSalle County Station Unit 2 is owned and operated by EGG, whose address is:

Exelon Generation Company, LLC 200 Exelon Way Kennett Square, PA 19348 To the best of our knowledge and belief, the statements made in this report are correct, and the examinations and corrective measures, as applicable, conform to the rules of the ASME Boiler and Pressure Vessel Code,Section XI.

NRC RA 19-034 June 7, 2019 Page 2 of 2 There are no regulatory commitments contained in this report. Should you have any questions concerning this letter, please contact Mr. Daniel Mearhoff, Regulatory Assurance Manager, at (815) 415-2800.

Respectfully,

~~r.~

Joh~ }~ashko Site Vice President LaSalle County Station

Attachment:

Form OAR-1 Owner's Activity Report cc: Regional Administrator - NRC Region Ill NRC Senior Resident Inspector - LaSalle County Station

ATTACHMENT 1 FORM OAR-1 OWNER'S ACTIVITY REPORT Plant LaSalle County Station, 2601 North 21st Road, Marseilles, IL 61341-9757 Unit No. 2 Commercial Service Date October 17, 1984 Refueling Outage Number L2R17 (if applicable)

Current Inspection Interval Fourth Inspection Interval (ISi), Third Inspection Interval (Containment ISi)

(1 " , 2°*, 3'd, 4'". other)

Current Inspection Period First Inspection Period (ISi and Containment ISi)

(1, 2nd, 310 }

ASME Section XI 2001 Edition through 2003 Addenda, and Edition and Addenda of Section XI applicable to the inspection plans ASME Section XI 2007 Edition through 2008 Addenda Date and Revision of inspection plans October 9, 2014 Revision 3 (previous interval), November 20, 2017 Revision 0 (current interval)

Edition and Addenda of Section XI applicable to repair/replacement activities, if different than the inspection plans Same as above Code Cases used for inspection and evaluation: N-508-4, N-532-4, N-532-5, N-578, N-586-1, N-639, N-702, N-747, N-805 (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 the completion of L2R17 conform to the requirements of Section x1.* (refueling outage number)

Signed Fleet. I5I G1 )/Ice{ Date 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 The Hartford Steam Boiler Inspection and Insurance Company of Hartford, Connecticut have inspected the items described in this 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. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

Commissions rJ.8 lo 17). A.) I (Inspector's Signature) (National Board Number and Endorsement)

Date '// )11 I

• Reference Issue Reports 4251021 and 4252624 regarding deviation from Specification J-2582 for Cat ID 1777199-1.

Page 1 of 3

TABLE 2 ABSTRACT OF REPAIR/REPLACEMENT ACTIVITIES REQUIRED FOR CONTINUED SERVICE Code Item Description Date Repair/Replacement Class Description Of Work Completed Plan Number Indication on 28 Reactor Recirc Pump Lug (IR 4221690). Indication reduced to acceptable size per WO 4890185. EC 1 2B33-C001B 2/26/19 2-19-2228 627 440 evaluated no additional examinations required per Code Case N-586-1 (b)(2).

Loose bolting on pipe clamp for supports 2RR00-2060X 1 (IR 4222601 ). Tightened bolting and 2/27/19 WO 4618927-32 2RR00-2061 X performed scope expansion.

F.6 RPV Vent Mechanical thread damage on Flange WO 4680705-01 1 Piping Bolted F.6 studs (IR 4224239). Bolting was 3/8/19 2-19-2447 Connection replaced.

Loose jam nuts and bolt assembly on 1 2LP02-2801 C piping support (IR 4225739). Tightened 3/2/19 WO 4893645-02 boltinq and performed scope expansion.

Leak identified on header for 2VY03A cooler (IR 4139831 ). Temporary clamp installed per EC 624352 and WO WO 4787178 4787178. Cooler 2VY03A (which 3 2VY03A 2/27/19 WO 4633535 contained the temporary clamp) was 2-19-2258 replaced during L2R17 under WO 4633535. IR 4254693 for lost paperwork associated with clamp.

Page 3 of 3

TABLE 1 ITEMS WITH FLAWS OR RELEVANT CONDITIONS THAT REQUIRED EVALUATION FOR CONTINUED SERVICE Examination Examination Item Item Description Evaluation Description Categorv Number Evaluated acceptable as-is, installed

~HG06-2103V Variable Support, spring can acceptable for this application, F-A F1 .20C installed spring can did not match

~CR 439856 to update drawing to reflect drawing (IA 4221583) installed condition.

Evaluated acceptable as-is, with 2RI01-2801 C Constant Support, capability for full movement of piping.

F-A F1.10 as-found cold setting not optimum WO 4893159 scheduled to adjust setting for range (IA 4224612) to optimize ranoe.

Evaluated acceptable as-is. The Replacement cooling coils for replacement cooling coils were built to the 1VY03A and 2VY03A did not have requirements of ASME Section Ill, and an Authorized Nuclear Inspector 0-B 02.10 passed all required testing and present during the hydrostatic examinations, with the exception of an testing at the manufacturer's ANI witness, and passed all post-facility. (IA 4252624) modification testino after installation.

Page 2 of 3