ULNRC-06986, CFR 50.55a Request for Relief from Impractical Examination Coverage Requirements for the Fourth Ten-Year Inservice Inspection Program Interval
| ML25344A258 | |
| Person / Time | |
|---|---|
| Site: | Callaway  |
| Issue date: | 12/10/2025 |
| From: | Elwood T Ameren Missouri, Union Electric Co |
| To: | Office of Nuclear Reactor Regulation, Document Control Desk |
| Shared Package | |
| ML25344A257 | List: |
| References | |
| ULNRC-06986 | |
| Download: ML25344A258 (0) | |
Text
My 7 lmeren Callaway Plant MISSOURI December 10, 2025 ULNRC-06986 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001 10 CFR 50.55a Ladies and Gentlemen:
DOCKET NUMBER 50-483 CALLAWAY PLANT UNIT 1 UNION ELECTRIC CO.
RENEWED FACILITY OPERATING LICENSE NPF-30 10 CFR 50.55a REQUEST FOR RELIEF FROM IMPRACTICAL EXAMINATION COVERAGE REQUIREMENTS FOR THE FOURTH TEN-YEAR INSERVICE INSPECTION PROGRAM INTERVAL Pursuant to 10 CFR 50.55a(g)(5)(iii), Union Electric Company (Ameren Missouri) hereby requests relief for Callaway Plant from examination coverage requirements of [WA-2200(c) imposed by the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code,Section XI, 2007 Edition through 2008 Addenda.
Ameren Missouri is submitting the enclosed Relief Request I4R-06 for the fourth Inservice Inspection (ISD) interval, which ended December 18, 2024. Relief is being requested for certain weld examinations performed where the required coverage of "essentially 100%" could not be obtained, as clarified in IWA-2200(c), when the subject welds were examined to the extent practical. Relief Request I4R-06 provides the bases for the determination that compliance with the IWA-2200(c) is impractical.
This letter does not contain new commitments. If there are questions, please contact Jeremy Morton at 314-225-1803.
Sincerely, Marner 1), Bare Thomas B. Elwood Manager, Regulatory Affairs ESS
Enclosure:
10 CFR 50.55a Relief Request I4R-06 8315 County Road 459 Steedman, MO 65077 AmerenMissouri.com
ULNRC-06986 Page 2 of 3 Mr. John Monninger Regional Administrator U.S. Nuclear Regulatory Commission Region IV 1600 East Lamar Boulevard Arlington, TX 76011-4511 Senior Resident Inspector Callaway Resident Office U.S. Nuclear Regulatory Commission 8201 NRC Road Steedman, MO 65077 Mr. M. Chawla Project Manager, Callaway Plant Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Mail Stop O8B1A Washington, DC 20555-0001
ULNRC-06986 Page 3 of 3 Index and send hardcopy to QA File A160.0761 Hardcopy:
Certrec Corporation 6500 West Freeway, Suite 400 Fort Worth, TX 76116 (Certrec receives ALL attachments as long as they are non-safeguards and may be publicly disclosed.)
Electronic distribution for the following can be made via Responses and Reports ULNRC Distribution:
K. C. Scott T. M. Hart J. G. Beck T. A. Witt J. P. Kuhlenberg T. B. Elwood J. W. Morton NSRB Secretary STARS Regulatory Affairs Mr. Jay Silberg (Pillsbury Winthrop Shaw Pittman LLP)