Fuel systems, mundane but crucial
The fuel system is probably one of the most lack luster systems for people when you think about aircraft. Yet, it is also a crucial system that requires its due diligence and fundamental understanding of operation. A failure in the fuel system can cause many different issues. One I would like to address is that of biological contamination in an aircraft fuel tank. Being from the aviation community, I have seen on multiple occasions a very carefree attitude towards fuel contamination. Contamination of a fuel tank can lead to multiple failures of systems as fuel drawn from that tank can cause breakdowns of materials in engine systems such as seals and filters. If not addressed soon enough contamination can lead to clogging of pipes, filters and fuel ports, ultimately causing engine failure and starvation. I have seen aircraft that are sitting for more intensive maintenance be improperly checked by maintenance personnel, one such instance led to a mold of some sort impacting a fuel tank