NRC 2015-0010, Filing of Owner'S Inservice Inspection Summary Report for Tendon Surveillance and Concrete Containment Examinations

Filing of Owner'S Inservice Inspection Summary Report for Tendon Surveillance and Concrete Containment Examinations

ML15062A010
Person / Time
Site:	Point Beach
Issue date:	02/27/2015
From:	Millen M Point Beach
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
NRC 2015-0010
Download: ML15062A010 (9)

Text

NExTera ENERGY BEACH February 27, 2015 NRC 2015-0010 10 CFR 50.55a U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555 Point Beach Nuclear Plant, Units 1 and 2 Docket 50-266 and 50-301 Renewed License Numbers DPR-24 and DPR-27 Filinq of Owner's Inservice Inspection Summary Report for Point Beach Nuclear Plant Tendon Surveillance and Concrete Containment Examinations NextEra Energy Point Beach, LLC (NextEra) is submitting the inservice inspection (ISI) summary report for inspections conducted prior to and during the tendon surveillance which concluded on May 7, 2014. The enclosed IWL Class CC report is submitted pursuant to the requirements of Subarticle IWA-6240 of the 2001 Edition with Addenda through 2003 of Section XI of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code and ASME Code Case N-532-4.

The enclosures to this letter contain the summary reports, which include completed Forms OAR-i, "Owner's Activity Report" for inservice inspections for the Class CC components. The reports are for the ISI of the concrete containment buildings performed prior to and during the 4 3rd year tendon surveillance for Point Beach Units 1 and 2.

Very truly yours, NextEra Energy Point Beach, LLC 6

Michael Millen Licensing Manager Enclosures cc: Administrator, Region Ill, USNRC Project Manager, Point Beach Nuclear Plant, USNRC Resident Inspector, Point Beach Nuclear Plant, USNRC PSCW Mike Verhagen, State of Wisconsin A NextEra Energy Point Beach, LLC, 6610 Nuclear Road, Two Rivers, WI 54241

ENCLOSURE I NEXTERA ENERGY POINT BEACH, LLC POINT BEACH NUCLEAR PLANT, UNIT I OAR-I, OWNER'S ACTIVITY REPORT FOR INSERVICE INSPECTION, FOR CLASS CC COMPONENTS 3 pages follow

FORM OAR-I OWNER'S ACTIVITY REPORT Report Number UI Tendon Surveillance and Class CC ISI Examination Plant FPLE Point Beach Nuclear Plant. 6610 Nuclear Road, Two Rivers, Wisconsin 54241 Unit No. I Commercial Service Date December 1970 Refueling Outage No. N/A (If applicable)

Current Inspection Interval Second (I1st, 2nd, 3rd, 4th, other)

Current Inspection Period Not Applicable for IWL (I st, 2 nd, 3rd)

Edition and Addenda of Section XI applicable to the inspection plans 2001 Edition 2003 Addenda Date and Revision of inspection plans Class CC: June IL 2010 / Revision 2 Edition and Addenda of Section Xl applicable to repairs/replacements activities, if different than the inspection plans Same Code Cases used: N-5324 N-739 N-753 (If (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 N/A (refueling outage number) conform to the requirements of Section XI.

Signed "A@- IWE/IWL Program Owner Date 01-30-2015 Own 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 the State or Province of Wisconsin and employed by Hartford Steam Boiler of CT 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 evaluations 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.

A Commissions WI 929625 AIN tetr's Signature National Board, State, Province, and Endorsements Date

Table I Items with Flaws or Relevant Conditions that Required Evaluation for Continued Service Examination Category and Item Number Item Description Evaluation Description In accordance with 10 CFR 50.55a(b)(2)(viii)(D), any tendon grease leakage detected during general visual examination of L-A / L1.11 Multiple the containment surface is to be reported. Minor grease Tendons leakage from multiple tendon end caps and vent plugs was noted during the visual examination of the containment surface.

In accordance with 10 CFR 50.55a(b)(2)(viii)(D), any tendon grease leakage detected during general visual examination of L-A, L1. 1 Containment the containment surface is to be reported. Grease staining from Concrete external sources (tendon end caps and vent plugs) was noted in several areas during the visual examination of the containment surface.

The top (shop end) of tendon was found with one (1) protruding Vertical Tendon wire which had not been previously reported. This does not V-92 exceed the maximum number of non-tensioned wires in accordance with the original design specification.

Table 2 Abstract of Repair/Replacement Activities Required for Continued Service Repair/ --

Replacement Date Plan Code Class Item Description Description of Work Completed Number None None None None None

ENCLOSURE 2 NEXTERA ENERGY POINT BEACH, LLC POINT BEACH NUCLEAR PLANT, UNIT 2 OAR-I, OWNER'S ACTIVITY REPORT FOR INSERVICE INSPECTION, FOR CLASS CC COMPONENTS 3 pages follow

FORM OAR- I OWNER'S ACTIVITY REPORT Report Number U2Tendon Surveillance and Class CC ISI Examination Plant FPLE Point Beach Nuclear Plant, 6610 Nuclear Road, Two Rivers, Wisconsin 54241 Unit No. 2 Commercial Service Date October 1972 Refueling Outage No. N/A (If applicable)

Current Inspection Interval Second (1 st, 2nd, 3rd, 4th, other)

Current Inspection Period Not Applicable for IWL (I1st, 2nd, 3rd)

Edition and Addenda of Section XI applicable to the inspection plans 2001 Edition 2003 Addenda Date and Revision of inspection plans Class CC: June 11, 2010 / Revision 2 Edition and Addenda of Section XI applicable to repairs/replacements activities, if different than the inspection plans Same Code Cases used: N-532-4. N-739. N-753 (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 N/A (refueling outage number) conform to the requirements of Section XI.

Signed 2,Ll IWE/IWL Program Owner Date 01-30-2015 Orner 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 the State or Province of Wisconsin and employed by Hartford Steam Boiler of CT 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 evaluations 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.

J 0// LA,6 V Attor's Signature Commissions WI 929625 A.I.N National Board, State. Province, and Endorsements Date

Table 1 Items with Flaws or Relevant Conditions that Required Evaluation for Continued Service Examination Category and Item Number Item Description Evaluation Description In accordance with 10 CFR 50.55a(b)(2)(viii)(D), any tendon grease leakage detected during general visual examination of L-A/ L1.11 Multiple the containment surface is to be reported. Minor grease Tendons leakage from multiple tendon end caps and vent plugs was noted during the visual examination of the containment surface.

In accordance with 10 CFR 50.55a(b)(2)(viii)(D), any tendon grease leakage detected. during general visual examination of L-A ~ 1.1 1 Containment. the containment surface is to be reported. Grease staining from Concrgte-- -external sources (tendon end caps and vent plugs) was noted

- -in several areas during the visual examination of the containment surface.

Buttress L (field end) of tendon was found with one (1)

Dome Tendon protruding wire which had not been previously reported. The L-B I L2.30 D1-214 same tendon had a previously reported missing wire, but this does not exceed the maximum number of non-tensioned wires in accordance with the original design specification.

The amount of grease replaced was 8.10% of the net duct volume. This is within the 10% acceptance criteria of IWL-3221.4 and does not meet the reporting criteria of 10 CFR L-B L2.40 V-206 50.55a(b)(2)(viii)(D). In accordance with the requirements of L-Base VRegulatory I L2.0 Guide 1.35, Revision 3, paragraph c.7.4.f, a Grease Sample reportable condition exists when the amount of grease replaced exceeds 5% of the net duct volume, when injected at the original installation pressure.

The amount of grease replaced was 8.47% of the net duct volume. This is within the 10% acceptance criteria of IWL-Vertical Tendon 3221.4 anddoes not meet the reporting criteria of 10 CFR L-B L2.40 V-26-2 - 50Z55a(b)(2)(viii)(D). In accordance with the requirements of Regulatory Guide-1:35, Revision 3, paragraph c.7.4.f, a Grease Sample reportable condition exists when the amount of grease replaced exceeds 5% of the net duct volume, when injected at the original installation pressure.

The amount of grease replaced was 6.10% of the net duct volume. This is within the 10% acceptance criteria of IWL-Vertical Tendon 3221.4 and does not meet the reporting criteria of 10 CFR L-B I L2.40 V-318 50.55a(b)(2)(viii)(D). In accordance with the requirements of Regulatory Guide 1.35, Revision 3, paragraph c.7.4.f, a Grease Sample reportable condition exists when the amount of grease replaced exceeds 5% of the net duct volume, when injected at the original installation pressure.

I . I I Table 2 Abstract of RepairlReplacement Activities Required for Continued Service Repair/

Replacement Date Plan Code Class Item Description Description of Work Completed Number None None None None None