Investigating no fault found in the aerospace industry

This paper describes a package of work to investigate the root cause of no fault found (NFF) events within the aerospace industry. The project focus is to develop practical guidance for designers and project managers to facilitate a reduction in NFF removal events for both current products and new designs. This investigation forms part of the second phase of the REMM (Reliability Enhancement Methodology and Modelling) project and comprises three diverse investigation activities: (i) examination of NFF issues at a system level that can highlight common areas of concern for all partner companies and across the Aerospace industry; (ii) classification and root cause analysis of service-data collected by partner companies; (iii) system modelling the 'softer' NFF issues to determine the effects of intervention. This paper describes the formulation of the work package strategy and details the progress made during the first year of this three-year project.