ML24004A033

Interim Report of a Deviation or Failure to Comply – Crompton Instruments Type 077 Ammeter

ML24004A033
Person / Time
Site:	Sequoyah
Issue date:	01/03/2024
From:	Marshall T Tennessee Valley Authority
To:	Office of Nuclear Reactor Regulation, Document Control Desk
References
Download: ML24004A033 (1)

Text

Sequoyah Nuclear Plant, Post Office Box 2000, Soddy Daisy, Tennessee 37384 January 3, 2024 10 CFR 21.21(a)(2) 10 CFR 50.4 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, D.C. 20555-0001 Sequoyah Nuclear Plant, Units 1 and 2 Renewed Facility Operating License Nos. DPR-77 and DPR-79 NRC Docket Nos. 50-327 and 50-328

Subject:

Interim Report of a Deviation or Failure to Comply - Crompton Instruments Type 077 Ammeter In accordance with the requirements of 10 CFR 21.21(a)(2), the Tennessee Valley Authority is submitting this interim report for Sequoyah Nuclear Plant (SQN).

During part testing ammeter, Crompton Instruments Type 077, 0-150A, 077-05FA-LSPZ-C6 failed to response to input. The ammeter display output remained at 0 amps during the testing.

The ammeter has never been installed in the plant. On November 7, 2023, SQN completed its 10 CFR Part 21 discovery process and determined the need to perform a 10 CFR Part 21 Evaluation.

The evaluation on the above conditions is ongoing and will not be completed within 60 days.

Because the 10 CFR Part 21 Evaluation cannot be completed within 60 days of discovery, SQN is submitting this interim report.

SQN intends to complete the 10 CFR Part 21 Evaluation no later than February 25, 2024.

There are no new regulatory commitments contained in this letter. Should you have any questions concerning this submittal, please contact Mr. Rick Medina, Site Licensing Manager, at (423) 843-8129 or rmedina4@tva.gov.

Respectfully, Thomas B. Marshall Site Vice President Sequoyah Nuclear Plant Marshall, Thomas B.

Digitally signed by Marshall, Thomas B.

Date: 2024.01.03 16:37:14 -05'00'

U.S. Nuclear Regulatory Commission Page 2 January 3, 2024 cc:

NRC Regional Administrator - Region II NRC Senior Resident Inspector - Sequoyah Nuclear Plant