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 Issue dateTitleTopic
CNL-22-079, American Society of Mechanical Engineers Operation and Maintenance Code, Request for Alternative RP-1220 July 2022American Society of Mechanical Engineers Operation and Maintenance Code, Request for Alternative RP-12Internal Flooding
Surveillance Frequency Control Program
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 2022American 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 2022Request 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-0215 March 2022American Society of Mechanical Engineers Operation and Maintenance Code, Request for Alternative RV-02Boric Acid
Surveillance Frequency Control Program
CNL-21-059, American Society of Mechanical Engineers Operation and Maintenance Code, Request for Alternative RP-1028 May 2021American Society of Mechanical Engineers Operation and Maintenance Code, Request for Alternative RP-10
ML21117A38726 April 2021American Society of Mechanical Engineers (ASME) Operation and Maintenance (OM) Code Request for Alternative IST RR 9 Proposed AlternativePandemic
Coronavirus
COVID-19
Grace period
CNL-21-037, Request for Alternative, 21-ISI-1 Alternative Repair and Examination for Mid Canopy Seal Weld Replacement26 March 2021Request for Alternative, 21-ISI-1 Alternative Repair and Examination for Mid Canopy Seal Weld ReplacementBoric 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-820 October 2020Supplement to Watts Bar Nuclear Plant (WBN) Unit 1 - American Society of Mechanical Engineers Operation and Maintenance Code, Request for Alternative IST-RR-8