ULNRC-06604, Enclosure - Callaway Energy Center Form OAR-1 Owner'S Activity Report

Enclosure - Callaway Energy Center Form OAR-1 Owner'S Activity Report

ML20296A573
Person / Time
Site:	Callaway
Issue date:	10/22/2020
From:	Ameren Missouri, Union Electric Co
To:	Office of Nuclear Reactor Regulation
Shared Package
ML20296A571	List: ML20296A572 ULNRC-06604, Enclosure - Callaway Energy Center Form OAR-1 Owner'S Activity Report
References
ULNRC-06604
Download: ML20296A573 (2)

Text

Callaway Energy Center Form OAR-1 Owner's Activity Report Report Number 24 Plant Callaway Energy Center, 8315 County Road 459, Steedman. MO 65077 Unit No. Commercial service date 12/19/1984 Refueling outage no 21 t*f appf1cable)

Current inspection interval 2nd 11st, 2nd, 3n:I, 4tn. olherJ Current inspection period 2nd

( 1SI, 2nd 3rd)

Edition and Addenda of Section XI applicable to tile inspection plans 2001 Edition with 2003 Addenda Date and revision of inspection plans IWL Program: 10/06/2009, Rev. 3 Edition and Addenda of Section XI applicable to repair/replacement activities. if different than the inspection plans NIA Code Cases used N-532-4

{tf apphcable1 CERTIFICATE OF CONFORMANCE I certify that (a) the statements made in this report are correct; (bl 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 _ _ _...;2=.1;..__ __

(refueltng oulage number) conform to the requirements of Section XI.

Signed -----~--=o-,e"",-o~-,-=o-w-ne-,.,. -=r;"':------

,s..,D,..e-s,-i:-.:-~-. Date 08/07/2020 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 _l'l"-'C""-8_a"-'f)5~*~"'-_A___ and employed by of G have inspected the items described in this Owner's Activity Report, and stale 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 mage or a loss of any kind arising from or connected with this inspection.

Commissions 1\18 1*-nz< NO~ ID jz I Nabonal Board. State, Province. and Endorsements 2.o

Enc:..\o~ur~ .\-a UL~ fl.c.- t>\o\.o~

TABLE 1 ITEMS WITH FLAWS OR RELEVANT CONDITIONS THAT REQUIRED EVALUATION FOR CONTINUED SERVICE Examination Item Description Evaluation Description Category and Item Number L-B, L2.20 Tendon Wire CAR 201504832 found condition acceptable. Two wires were found protruding from the anchorage of horizontal tendon 45BA at the B buttress. The issue was only identified after liftoff commenced. The average forces for the field end and shop end were found significantly higher than the required yield strength and therefore the tendon is still able to perform its intended function.

L-B, L2.40 Tendon Grease CAR 201506412 found condition acceptable. Preliminary tendon grease reserve alkalinity (base number) tested lower than the specified minimum. Since the grease tested was an "older" grease type requiring a base number of greater than 0 and all affected samples had a base number greater than 0, the grease is found to be capable of performing its intended function . In addition, two more tests were taken and indicate that the base or alkalinity numbers are well within the acceptance criteria per specification C-1003.

TABLE 2 ABSTRACT OF REPAIR/REPLACEMENT ACTIVITIES REQUIRED FOR CONTINUED SERVICE Code Class Item Description Description of Work Date Completed Repair/Replacement Plan Number None None None None None