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Forwards LER 86-016-01 re problems w/retainer nut associated w/discs in main steam line check valves.Shutte-Koerting Co will notify all customers of valves w/similar design problem.Item reportable per Part 21.

Accession Number: ML20211M621

Date Released: Wednesday, August 12, 2020

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• ML20211M616 - Forwards LER 86-016-01 re problems w/retainer nut associated w/discs in main steam line check valves.Shutte-Koerting Co will notify all customers of valves w/similar design problem.Item reportable per Part 21. (1 page(s), 12/12/1986)
• ML20211M650 - LER 86-016-01:on 861027,retainer nut that attaches check valve disc to tail link found loose or missing on two of four check valves.Caused by mfg inadequate design of nut. Design mod implemented.Item reportable per Part 21. (5 page(s), 12/12/1986)