NRC-25-0050, Technical Specifications 5.6.7 - Post Accident Monitoring (PAM) Report
| ML25363A134 | |
| Person / Time | |
|---|---|
| Site: | Fermi  |
| Issue date: | 12/29/2025 |
| From: | Banker S DTE Electric Company |
| To: | Office of Nuclear Reactor Regulation, Document Control Desk |
| References | |
| NRC-25-0050 | |
| Download: ML25363A134 (0) | |
Text
Stephanie P. Banker Vice President - Engineering & Technical Support DTE Electric Company 6400 N. Dixie Highway, Newport, MI 48166 Tel: 734.586.4431 Email: stephanie.banker@dteenergy.com December 29, 2025 10 CFR 50.4 NRC-25-0050 U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555-0001 Fermi 2 Power Plant NRC Docket No. 50-341 NRC License No. NPF-43
Subject:
Technical Specification 5.6.7 - Post Accident Monitoring (PAM) Report DTE Electric Company (DTE) is submitting a report pursuant to Fermi 2 Technical Specification (TS) 3.3.3.1, Post Accident Monitoring Instrumentation and TS 5.6.7, Post Accident Monitoring Report. The enclosure to this letter contains the report regarding the inoperability of Division 2 Containment High Range Radiation Monitor System (CHRRMS). On November 17, 2025, Fermi 2 entered TS 3.3.3.1 Condition A due to Division 2 CHRRMS plant modification.
On December 17, 2025, Fermi 2 entered TS 3.3.3.1 Condition B as Division 2 CHRRMS remained inoperable for 30 days, requiring this special report to the NRC pursuant to TS 5.6.7.
No new commitments are being made in this submittal.
Should you have any questions or require additional information, please contact Mr. Eric Frank at (734) 586-4772.
Sincerely, Stephanie P. Banker Vice President - Engineering and Technical Support
USNRC NRC-25-0050 Page 2
Enclosure:
Technical Specification 5.6.7 - Post Accident Monitoring (PAM) Instrumentation 14-Day Report for Division 2 CHRRMS cc: NRC Project Manager NRC Resident Office Regional Administrator, Region III
Enclosure to NRC-25-0050 Fermi 2 NRC Docket No. 50-341 Operating License No. NPF-43 Technical Specification 5.6.7 - Post Accident Monitoring (PAM) Instrumentation 14-Day Report for Division 2 CHRRMS
Enclosure to NRC-25-0050 Page 2 Post Accident Monitoring Instrumentation Report Inoperable Division of Containment High Range Radiation Monitor (CHRRM)
Alternate Monitoring Method.
Indication from Division 1 CHRRMS has been verified and will serve as the alternate monitoring method for Division 2 CHRRMS until it is restored to operability.
Apparent Cause of Inoperability.
The cause for inoperability was due to the plant taking the equipment offline to implement Engineering Design Package (EDP) 70198, to replace Div. 2 CHRRMS Radiation Monitor/Power Supply. The plant modification is near completion waiting for connection to Integrated Process Computer System (IPCS) and Post Maintenance Testing (PMT). This modification is being completed under Work Order (WO) number 50366168.
Plan/Schedule to restore operability.
The current time to restore Division 2 CHRRMS is February 20, 2026.