Considerations provided by Sofema Online - SOL (www.sofemaonline.com) 

General Introduction

Inspection should be carried out in accordance with an agreed time line - a single finding should not stop the process rather it should be noted & documented but the process to continue otherwise this can have significant repercussions of stopping and starting the program and finding more defects even at the end of the check.

Typically all inspection should be completed at the 20% completed point of the critical path timeline.