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Responds to 890522 ltr re ability of nuclear industry to detect thermal fatigue cracking in piping.Ultrasonic testing will be performed on representative sample of welds by qualified personnel (ref IE Bulletin 88-008).

Accession Number: ML20245K844

Date Released: Thursday, October 24, 2024

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• ML20245K840 - Responds to 890522 ltr re ability of nuclear industry to detect thermal fatigue cracking in piping.Ultrasonic testing will be performed on representative sample of welds by qualified personnel (ref IE Bulletin 88-008). (5 page(s), 6/15/1989)
• ML20245K852 - Responds to Green Ticket Item 4514, "Testing Requirements to Detect Thermal Fatigue Cracking in Piping Connected to RCS." Concurrence page distribution should be added when preparing response. (2 page(s), 5/26/1989)
• ML20245K858 - Raises concerns re industry ability to detect thermal fatigue cracking in piping connected to RCS (NRC Bulletin 88-008).Current ASME Code ultrasonic testing techniques do not result in highly reliable results. (3 page(s), 5/22/1989)