Failure Modes and Effects Analysis (FMEA) for High-Integrity Avionics

Bottom-up verification proving that component-level electrical failures are cleanly contained by hardware safety interlocks.

Component-Level Failure Mode Enumeration

Every electrical component (capacitors, diodes, MOSFET switches, microcontrollers) is analyzed across potential failure modes: open circuit, short circuit to ground, short to high voltage, or parameter drift outside tolerance.

Traceability to System Safety Objectives

FMEA outputs directly feed the basic event failure rates in the system fault trees, ensuring mathematical consistency across the entire ARP4761 safety assessment dossier submitted for civil type certification.

Covers latent failure modes that remain undetected during normal operation
Validates built-in test (BIT) and power-on self-test (POST) diagnostic coverage (> 95%)
Directly supports aircraft Master Minimum Equipment List (MMEL) dispatch criteria

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