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Further response to FOIA request for documents generated as result of Piping Review Committee & SJ Chilk 840213 memo to WJ Dircks.Forwards App A documents.Encl to Document 1 & Documents 2-41 of App B withheld (ref FOIA Exemption 5).

Accession Number: ML20105C173

Date Released: Sunday, October 27, 2024

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• ML20112J425 - Further response to FOIA request for documents generated as result of Piping Review Committee & SJ Chilk 840213 memo to WJ Dircks.Forwards App A documents.Encl to Document 1 & Documents 2-41 of App B withheld (ref FOIA Exemption 5). (6 page(s), 5/16/1984)
• ML20105C249 - Discusses ACRS review of flaw evaluation procedures for BWR pipe cracks & "leak before break" arguments.Methods for showing adequate safety for most stainless steel primary sys are available. (2 page(s), 8/19/1983)
• ML20105C248 - Responds to 830819 ltr re ACRS review of flaw evaluation procedures for BWR pipe cracks.Problems due to intergranular stress corrosion cracking. "Leak before break" technology may be applied to piping sys other than BWRs. (2 page(s), 9/23/1983)
• ML20112J565 - Ack receipt of 830923 response to author ltr to Chairman Palladino on possibility of & consequences of double-ended breaks. (4 page(s), 10/14/1983)
• ML20105C805 - Requests Piping Review Committee background info that would be useful to CRGR 2 wks in advance of future meetings. (1 page(s), 2/6/1984)
• ML20112J515 - Speech entitled, "Effect of Large Crack Extension...," presented at Committee on Safety of Nuclear Installation Specialist 830901-02 meeting on," Leak-Before-Break in Nuclear Reactor Piping Sys," in Monterey,CA. (23 page(s), 9/1/1983)
• ML20112J626 - Discusses ACRS 830817 meeting re BWR pipe cracking.Current methods suggested at meeting do not identify small percentage of piping which represents unnecessary larger risk. (2 page(s), 8/19/1983)
• ML20112J735 - Forwards draft Rev 3 to, "Guidelines for Evaluation of & Remedial Actions for BWR Piping Subj to IGSCC." EPRI anticipates having final draft around mid-Feb 1984. (1 page(s), 1/16/1984)
• ML20112J481 - Forwards update of research plans on BWR pipe cracking. Plan recommends addl programs that NRC & industry should undertake.Comments requested by 830819. (16 page(s), 8/12/1983)
• ML20112J721 - Discusses initiation of Piping Review Committee,per 830531 memo.BWR part of Task Group on Pipe Crack should complete effort to draft rept stage within 6 months.Viewgraphs of BWR Owners Group,EPRI & GE 831004 presentation to NRC encl. (28 page(s), 9/20/1983)
• ML20105C167 - Approves proposal delineated in 830713 memo re reviewing NRC requirements for nuclear power plant piping.Plans for allocating consultant costs requested.Ongoing programs should not be affected by proposal. (2 page(s), 8/1/1983)
• ML20112J748 - Draft Rev 3 to "Guidelines for Evaluation of & Remedial Actions for BWR Piping Subj to IGSCC." (11 page(s), 10/15/1983)
• ML20112J685 - Reiterates author opinion that using code loads to supposedly show that LOCA cannot occur is circumvention of stated philosophy under which code loads developed & again unacceptable.Ltr rept forwarded. (5 page(s), 8/26/1981)
• ML20112J758 - Advises that program & resource requirements should be modified to implement CRGR recommendation re requirements for nuclear power plant piping.Priorities should be based on anticipated needs for licensing decisions. (1 page(s), 9/14/1983)
• ML20108E950 - Summarizes ACRS 278th meeting on 830609-11 re fracture mechanics approach to pipe failure.Fracture mechanics analysis should be incorporated w/Task Action Plan & re asymmetric blowdown loads on coolant sys. (2 page(s), 6/14/1983)