Airborne Electronic Hardware Design Assurance: ... Apr 2026

DO-254, Design Assurance Guidance for Airborne Electronic ... - RTCA

Imagine a team at an aerospace firm designing a —the hardware responsible for helping a pilot maintain a steady nose-up or nose-down position. Because a failure here could be catastrophic, it is assigned Design Assurance Level (DAL) A , the most stringent level.

In the world of avionics, is the practice of ensuring that the "brain" of an aircraft—its complex electronics—is built so reliably that its failure is practically impossible in critical flight conditions.

This process is primarily governed by the RTCA DO-254 standard (or ED-80 in Europe), which provides the framework for developing safety-critical hardware like FPGAs and ASICs. The Story of the Pitch Controller