<a style="color:#000" href="https://www.tugraz.at/institute/ittm">Institute of Thermal Turbomachinery and Machine Dynamics</a></br><a href="https://www.tugraz.at">Graz University of Technology</a> https://aeroenginesafety.tugraz.at/ 2026-04-13T18:09:43+00:00 https://aeroenginesafety.tugraz.at/ https://aeroenginesafety.tugraz.at/lib/exe/fetch.php?media=wiki:logo.png text/html 2020-06-25T20:43:25+00:00 Anonymous (anonymous@undisclosed.example.com) https://aeroenginesafety.tugraz.at/doku.php?id=5:5&rev=1593117805&do=diff 5. External Factors - 5.1 Weather - 5.2 Foreign Object Damage (FOD) - 5.3 Erosion - 5.4 Corrosion - 5.5 Special Media (Unusual Influences) In this section, external factors are damage mechanisms that affect the aircraft via the airflow. Primarily, this concerns the intake airflow, but in some cases aggregate components such as regulators or ignition systems may be damaged by the