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Requests addl info re once-through steam generator auxiliary feedwater thermal sleeve/collar weld attachments.Cracking reported at weld attachment between collar & thermal sleeve.

Accession Number: ML16245A734

Date Released: Tuesday, March 2, 2021

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• ML19309E855 - Requests addl info re once-through steam generator auxiliary feedwater thermal sleeve/collar weld attachments.Cracking reported at weld attachment between collar & thermal sleeve. (2 page(s), 4/1/1980)
• ML16245A733 - Advises that B&W prepared & transmitted to affected utils info re failure discovered at weld attachment between collar & thermal sleeve on auxiliary feedwater nozzles of steam generator.NRC should contact utils for info. (1 page(s), 3/17/1980)