Document: NUREG-0800
Document ID: f9ea930a-8e7e-4e1f-b7a5-caeeffb721d5
Document Type: srp
Title: STEAM GENERATOR TUBE INSERVICE INSPECTION
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070447.pdf
Revision Date: 2023-06
Chapter: 5
Section ID: 5.4.2.2
CFR Part: 
CFR Title: 

Content:
stress corrosion cracking (ODSCC) at the tube-to-tube support (TSP) plate intersections in Westinghouse-designed steam generators having drilled-hole tube support plates and alloy 600 steam generator tubing. Generic Letter 95-05 (Reference 14) provides guidance on the implementation of an alternate repair criterion to be applied to predominantly axially oriented ODSCC at TSP locations. Because of the increased likelihood of through-wall cracks if this criterion is applied, the Generic Letter includes provisions for augmented steam generator tube inspections and more restrictive operational leakage limits. For such applications, the reviewer considers the guidance of Generic Letter 95-05.34 For standard design certification reviews under 10 CFR Part 52, the procedures above should be followed, as modified by the procedures in SRP Section 14.3 (proposed), to verify that the design set forth in the standard safety analysis report, including inspections, tests, analysis, and acceptance criteria (ITAAC), site interface requirements and combined license action items, meet the acceptance criteria given in subsection II. SRP Section 14.3 (proposed) contains procedures for the review of certified design material (CDM) for the standard design, including the site parameters, interface criteria, and ITAAC.35 IV. EVALUATION FINDINGS The reviewer verifies that sufficient information has been provided in accordance with the requirements of this SRP section, and that histhe evaluation supports conclusions of the 36 following type, to be included in the staff's safety evaluation report: To ensure that no deleterious defects develop during service, steam generator tubes will be inspected prior to plant startup and periodically throughout the life of the plant. The applicant (licensee) has stated that histhe inservice inspection program will comply 37 (complies) with the inservice inspection requirements established in 10 CFR 50.55a, Section XI of the ASME Code, and the applicant's