SofemaOnline (SOL) www.sofemaonline.com considers the regulations driving EWIS compliance within the European EASA jurisdiction.

Introduction

The origins of EASA's focus on EWIS can be traced back to various incidents in the aviation industry that highlighted the risks associated with electrical faults leading to in-flight smoke and fire events. These incidents underscored the need for rigorous maintenance and training practices to prevent similar occurrences in the future.

Sofema Online (SOL) www.sofemaonline.com reviews the CS 25 system separation requirements.

Introduction EWIS Certification Requirements

(a) Each EWIS must be designed and installed with adequate physical separation from other EWIS and aeroplane systems so that an EWIS component failure will not create a hazardous condition.

>> Adequate physical separation must be achieved by separation distance or by a barrier that provides protection equivalent to that separation distance.

Sofema Online (SOL) www.sofemaonline.com Considers the Importance of Electrical Wiring Interconnect System (EWIS Practical Training to support the Competence Development of Aircraft Inspectors.

Introduction

Following investigations in the aftermath of Flight TWA800 and Swissair 111, a detailed investigation was performed by the Ageing Transport System Rulemaking Advisory Committee ATSRAC into the effectiveness of the Inspection Process carried out during maintenance activities.

After some years of Investigation, it was understood that there were a number of shortcomings observed which has translated into the need for specific training to manage electrical wiring inspection standards.