| CNL-23-037, Response to Request for Additional Information Regarding Browns Ferry Nuclear Plant, Units 1, 2, and 3 - Request to Use a Later Edition of the American Society of Mechanical Engineers Operation and Maintenance Code and Alternative Request | 1 June 2023 | Response to Request for Additional Information Regarding Browns Ferry Nuclear Plant, Units 1, 2, and 3 - Request to Use a Later Edition of the American Society of Mechanical Engineers Operation and Maintenance Code and Alternative Requests | Stroke time
VT-2
Incorporated by reference
Surveillance Frequency Control Program |
| CNL-22-090, Request to Use a Later Edition of the American Society of Mechanical Engineers Operation and Maintenance Code and Alternative Requests for the Fifth Inservice Testing Interval | 12 December 2022 | Request to Use a Later Edition of the American Society of Mechanical Engineers Operation and Maintenance Code and Alternative Requests for the Fifth Inservice Testing Interval | Safe Shutdown
Stroke time
Incorporated by reference
Scram Discharge Volume
Weak link
Operational leakage |
| CNL-22-025, American Society of Mechanical Engineers Boiler and Pressure Vessel Code Section XI, Request for Alternative BFN-0-ISI-32 | 22 August 2022 | American Society of Mechanical Engineers Boiler and Pressure Vessel Code Section XI, Request for Alternative BFN-0-ISI-32 | VT-2
Through-Wall Leakage |
| CNL-22-079, American Society of Mechanical Engineers Operation and Maintenance Code, Request for Alternative RP-12 | 20 July 2022 | American Society of Mechanical Engineers Operation and Maintenance Code, Request for Alternative RP-12 | Internal Flooding
Surveillance Frequency Control Program |
| CNL-22-002, Request for Relief from American Society of Mechanical Engineers Boiler and Pressure Vessel Code Section XI, in Accordance with 10 CFR 50.55a(g)(5)(iii) and 50.55a(g)(6) (BFN-2-ISI-003) | 24 May 2022 | Request for Relief from American Society of Mechanical Engineers Boiler and Pressure Vessel Code Section XI, in Accordance with 10 CFR 50.55a(g)(5)(iii) and 50.55a(g)(6) (BFN-2-ISI-003) | Nondestructive Examination
VT-2
Intergranular Stress Corrosion Cracking
Stress corrosion cracking
Pressure Boundary Leakage
Through-Wall Leak
Unidentified leakage
Operational leakage |
| CNL-22-049, American Society of Mechanical Engineers Operation and Maintenance Code, Request for Alternatives RP-11 (SQN) and IST-RR-9 (WBN) | 26 April 2022 | American Society of Mechanical Engineers Operation and Maintenance Code, Request for Alternatives RP-11 (SQN) and IST-RR-9 (WBN) | |
| CNL-22-009, Request for Relief from American Society of Mechanical Engineers Boiler & Pressure Vessel Code, Section XI, In. | 25 April 2022 | Request for Relief from American Society of Mechanical Engineers Boiler & Pressure Vessel Code, Section XI, In. | Nondestructive Examination
VT-2
Stress corrosion cracking
Pressure Boundary Leakage
Unidentified leakage
Operational leakage
Thermal fatigue |
| CNL-22-024, American Society of Mechanical Engineers Operation and Maintenance Code, Request for Alternative RV-02 | 15 March 2022 | American Society of Mechanical Engineers Operation and Maintenance Code, Request for Alternative RV-02 | Boric Acid
Surveillance Frequency Control Program
Skill of the craft |
| CNL-21-081, Request for Alternative, BFN-21-ISI-02, Alternative to American Society of Mechanical Engineers, Boiler and Pressure Vessel Code, Section XI, Paragraph IWB-2420(b) and the Use of Case N-526 | 14 January 2022 | Request for Alternative, BFN-21-ISI-02, Alternative to American Society of Mechanical Engineers, Boiler and Pressure Vessel Code, Section XI, Paragraph IWB-2420(b) and the Use of Case N-526 | VT-2
License Renewal
Power Uprate |
| CNL-21-059, American Society of Mechanical Engineers Operation and Maintenance Code, Request for Alternative RP-10 | 28 May 2021 | American Society of Mechanical Engineers Operation and Maintenance Code, Request for Alternative RP-10 | |
| ML21117A387 | 26 April 2021 | American Society of Mechanical Engineers (ASME) Operation and Maintenance (OM) Code Request for Alternative IST RR 9 Proposed Alternative | Pandemic
Coronavirus
COVID-19
Grace period |
| CNL-21-037, Request for Alternative, 21-ISI-1 Alternative Repair and Examination for Mid Canopy Seal Weld Replacement | 26 March 2021 | Request for Alternative, 21-ISI-1 Alternative Repair and Examination for Mid Canopy Seal Weld Replacement | Boric Acid
Weld Overlay
Nondestructive Examination
VT-2
Liquid penetrant |
| CNL-20-077, Supplement to Watts Bar Nuclear Plant (WBN) Unit 1 - American Society of Mechanical Engineers Operation and Maintenance Code, Request for Alternative IST-RR-8 | 20 October 2020 | Supplement to Watts Bar Nuclear Plant (WBN) Unit 1 - American Society of Mechanical Engineers Operation and Maintenance Code, Request for Alternative IST-RR-8 | |