Document: NRC Regulatory Guide
Document ID: cf64153e-7623-469c-a3f9-b57ba0f5497d
Document Type: regulatory_guide
Title: Reactor Coolant Pump Flywheel Integrity + HISTORY - HISTORY 01/2006 – Periodic Review of Revision 1 – No Issues Identified
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML0037/ML003739936.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.14
CFR Part: 
CFR Title: 

Content:
orgings) of Section III of the ASME Code. 'The analyses outlined in regulatory positions C.2.c, d, and e should preferably be submitted in topical reports rather than on a case-by-case basis for those flywheel designs that will have multiple applications. 4 As defined in the Discussion. b. Inservice inspection should be performed for each flywheel as follows: (1) An in-place ultrasonic volumetric examina tion of the areas of higher stress concentration at the bore and: keyway at approximately 3-year intervals, during the refueling or maintenance shutdown coin ciding with the inservice inspection schedule as required by Section XI of the ASME Code. (2) A surface examination of all exposed sur faces and complete ultrasonic volumetric examination at approximately 10-year intervals, during the plant shut down coinciding with the inservice inspection schedule as required by Section XI of the ASME Code. (3) Examination procedures should be in accordance with the requirements of Subarticle IWA-2200 of Section XI of the ASME Code. (4) Acceptance criteria should conform to the recommendations of regulatory position C.2.f. (5) If the examination and evaluation indicate an increase in flaw size or growth rate greater than predicted for the service life of the flywheel, the results of the examination and evaluation should be submitted, to the staff for evaluation. D. IMPLEMENTATION The purpose of this section is to provide informa tion to applicants and licensees regarding the staff's plans for utilizing this regulatory guide. Except in those cases in which the applicant proposes an acceptable alternative method for com plying with specified portions' of the Commission's regulations, the positions of this guide will be used by the NRC staff as follows. 1. The recommendations of regulatory positions C.A, C.2, C.3, and C.4.a will be used in evaluating submittals for construction permit applications docketed on or after January 1, 1976. If an applicant wishes to use the