AFH 2-8

Figure 2-9. An aircraft piston showing damage that occurred in just minutes as a result of detonation and overheating. Jet fuel refueling trucks and dispensing equipment are marked with JET-A placards in white characters on a black background. Because of the dire consequences associated with misfueling, fuel nozzles are specific to the type of fuel. AVGAS fuel filler nozzles are straight with a constant diameter. [Figure 2-10] However, jet fuel filler nozzles are flared at the end to prevent insertion into AVGAS fuel tanks. [Figure 2-11] Figure 2-10. An AVGAS fuel filler nozzle is straight with a constant diameter.