EASA SIB 2011-27R1: Suspect (Bogus - Counterfeit) Electronic Components

What to do

Manufacturers and maintenance organizations are strongly recommended to perform thorough incoming inspections of electronic components, especially when sourced through brokers or international dealers. Implement advanced parts tracking based on lot and date codes and monitor failure rates closely. If unusually high failure rates or counterfeit components are detected, report the findings to EASA and inform relevant aircraft and equipment manufacturers to assess safety impacts.

Summary

EASA Safety Information Bulletin SIB No. 2011-27R1 addresses the issue of suspect, bogus, or counterfeit electronic components, particularly integrated circuits (ICs) and other electronic parts used by manufacturing and maintenance organizations. The bulletin highlights cases involving counterfeit Xilinx FPGA XC4006E-4PC84I and Vishay MOSFET SI4850EY-T1-E3 components, which can lead to equipment failures and reduced reliability. This document provides information relevant to aviation professionals involved in component procurement and maintenance.

What changed

This revision of EASA SIB No. 2011-27 expands the scope of affected components to include more common electronic parts beyond those originally identified. It updates the description of counterfeit practices and provides additional examples of defects found in bogus ICs and MOSFETs. The bulletin emphasizes the increased risk of failures due to counterfeit components and the need for enhanced inspection and tracking.

Why it matters

Counterfeit electronic components can cause latent damage, functional failures, and reduced mean time between failures (MTBF), potentially impacting aircraft system safety assessments. Aviation operators, maintenance organizations, and manufacturers must be aware of these risks to prevent installation of bogus parts that could compromise aircraft reliability and safety. Understanding the nature of these counterfeit components helps improve detection and mitigation strategies.