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Ack receipt of util 780419 interim deficiency repts re reactor bldg spray piping supports & defective welds on containment bldg personnel locks.

Accession Number: ML19329E794

Date Released: Saturday, November 7, 2020

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• ML19329E793 - Ack receipt of util 780419 interim deficiency repts re reactor bldg spray piping supports & defective welds on containment bldg personnel locks. (1 page(s), 5/8/1978)
• ML19329E802 - Interim deficiency rept re cracked weld between stiffener & welding ring of personnel lock.Caused by improper joint fit-up.Approved repair procedure w/post-weld heat approach may be impractical.Alternate design discussed. (4 page(s), 4/19/1978)
• ML19329E805 - Interim deficiency rept re excessive stress in reactor bldg spray piping supports.Caused by design miscalculation.Piping sys reanalysis initiated. (7 page(s), 4/19/1978)