SAE AIR5924B-2024 - Guidelines for the Integration of Electronic Engine Control Systems for Transport Category (Part 25) and General Aviation (Part 23) Aircraft

Scope: This SAE Aerospace Information Report (AIR) provides methodologies and approaches that have been used to install and integrate full-authority-digital-engine-control (FADEC) systems on transport category aircraft. Although most of the information provided is based on turbofan/turboprop engines installed on large commercial transports, many of the issues raised are equally applicable to corporate, general aviation, regional, and commuter aircraft, and to military installations, particularly when commercial aircraft are employed by military users. The word 'engine' is used to designate the aircraft propulsion system. The engine station designations used in this report are shown in Figures 1 to 3. Most of the material concerns an electronic engine control (EEC) with its associated software and its functional integration with the aircraft. However, the report also addresses the physical environment associated with the EEC and its associated wiring and sensors. Since most current transport category engines use dual-channel FADEC systems, this is the configuration addressed by this report. A typical FADEC system configuration is shown in Figure 4.

SAE AIR5924B-2024 Referenced Document

ASTM F3 Standard Specification for Nickel Strip for Electron Tubes
ASTM F3264 Standard Specification for Normal Category Aeroplanes Certification
ASTM F3338 Standard Specification for Design of Electric Engines for General Aviation Aircraft
ASTM F3432 Standard Practice for Powerplant Instruments
RTCA DO-178C Software Considerations in Airborne Systems and Equipment Certification

2024 SAE AIR5924B-2024 Guidelines for the Integration of Electronic Engine Control Systems for Transport Category (Part 25) and General Aviation (Part 23) Aircraft
2013 SAE AIR5924A-2013 Guidelines for the Integration of Electronic Engine Control Systems with Transport Category (Part 25) and General Aviation (Part 23) Aircraft
2004 SAE AIR5924-2004 Guidelines for the Integration of Electronic Engine Control Systems with Transport Category Aircraft Systems