Control Room Envelope (CRE) is the boundary which contains the control room enviroment.
See also
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| | Site | Start date | Title | Description |
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| IR 05000458/2024003 | River Bend | 31 October 2024 | Integrated Inspection Report 05000458/2024003 | | | ML24254A463 | | 31 October 2024 | Sdaa FSER Chapter 14 - ITAAC | | | 05000499/LER-2024-002, Two Control Room Envelope HVAC Trains Inoperable Resulting in a Condition That Could Have Prevented Fulfillment of a Safety Function | South Texas | 17 October 2024 | Two Control Room Envelope HVAC Trains Inoperable Resulting in a Condition That Could Have Prevented Fulfillment of a Safety Function | | | W3F1-2024-0042, License Amendment Request to Extend Allowable Outage Times for One or More Control Room Air Conditioning Units Inoperable | Waterford | 16 October 2024 | License Amendment Request to Extend Allowable Outage Times for One or More Control Room Air Conditioning Units Inoperable | | | ML24207A019 | FitzPatrick | 9 October 2024 | SE Addendum Related to the License Amendment No. 338 for Implementation of the Alternative Source Term (DPO-2021-001) | | | L-2024-120, LAR 301 - Revise Renewed Facility Operating Licenses to Adopt an Alternative Approach for Addressing Seismic Risk in 10 CFR 50.69 Risk-Informed Categorization | Point Beach | 8 October 2024 | LAR 301 - Revise Renewed Facility Operating Licenses to Adopt an Alternative Approach for Addressing Seismic Risk in 10 CFR 50.69 Risk-Informed Categorization | | | ML24199A171 | Wolf Creek | 17 September 2024 | Issuance of Amendment No. 241 Revise Ventilation Filter Testing Program Criteria and Administrative Correction of Absorber in Technical Specification 5.5.11 | | | CP-202400335, License Amendment Request to Adopt TSTF-51, TSTF-471, and TSTF-571-T to Eliminate Use of the Term Core Alterations and Revise Requirements During Handling of Irradiated Fuel | Comanche Peak | 12 September 2024 | License Amendment Request to Adopt TSTF-51, TSTF-471, and TSTF-571-T to Eliminate Use of the Term Core Alterations and Revise Requirements During Handling of Irradiated Fuel | | | ML24165A038 | FitzPatrick | 4 September 2024 | Issuance of Amendment No. 356 Update Fuel Handling Accident Analysis | | | ENS 57278 | Summer | 21 August 2024 00:01:00 | Control Room Ventilation Inoperable | The following information was provided by the licensee via email and phone:
At 2001 EDT on 8/20/2024, it was discovered that both trains of the control room ventilation system were simultaneously inoperable. Due to this inoperability, the system was in a condition that could have prevented the fulfillment of a safety function; therefore, this condition is being reported as an eight-hour notification per 10 CFR 50.72(b)(3)(v).
There is no impact on the health and safety of the public or plant personnel. The NRC resident inspector has been notified.
One train of control room ventilation was restored to operable status at 2107 EDT on 8/20/2024.
The following additional information was obtained from the licensee in accordance with Headquarters Operations Officers Report Guidance:
While performing canister maintenance on train B, it was discovered that the dampener for train A failed to close. Train B was restored at the conclusion of maintenance.
- * * UPDATE ON 08/21/24 AT 1648 EDT FROM LAUREN ANDERSON TO JOSUE RAMIREZ * * *
The following information was provided by the licensee via email and phone:
This event is also reportable per 10 CFR 50.72(b)(3)(xiii), loss of emergency assessment capability, as the technical support center facility is located inside the control room envelope.
Notified R2DO (Masters) |
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