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Forwards Bulletin 72-1, "Failed Hangers for ECCS Suction Header," for info.Info may relate to design,fabrication & operating experience of certain components at facility.

Accession Number: ML20024G522

Date Released: Saturday, November 7, 2020

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• ML20024G521 - Forwards Bulletin 72-1, "Failed Hangers for ECCS Suction Header," for info.Info may relate to design,fabrication & operating experience of certain components at facility. (4 page(s), 6/22/1972)
• ML20024G530 - Provides info in response to request for info outlined in Bulletin 72-1, "Failed Hangers for ECCS Suction Header." General visual insp of torus externals performed after each plant shut down involving relief valve operation. (5 page(s), 7/5/1972)
• ML20024G532 - Forwards Inquiry Rept 50-263/72-02 .Licensee failed to detect increase in tank level coupled w/decrease in boric acid concentration. (1 page(s), 7/21/1972)
• ML20024G535 - Investigation Rept 50-263/72-02.Noncompliance noted.Major areas investigated:licensee failure to detect increase in tank level coupled w/decrease in boric acid concentration. (1 page(s), 7/20/1972)