What can occur during fuel tank overpressurization?

Fuel tank overpressurization can lead to serious safety hazards, most notably the rupture or leakage of the fuel tank. When excessive pressure builds up within a fuel tank, it can compromise the integrity of the tank's structure, potentially leading to physical damage. This damage may manifest as cracks, ruptures, or leaks, which are particularly dangerous in an aircraft because they can result in fuel being released into the environment or, more critically, within the aircraft's structure. Such occurrences can create fire hazards and significantly impair the safe operation of the aircraft.

Understanding fuel tank overpressurization is crucial for aircraft safety. It can result from various factors like thermal expansion of fuel, excessive fuel loading, or improper venting in the fuel system. Identifying these risks and implementing proper fuel management practices is essential to maintaining the integrity of the fuel system and ensuring overall safety during flight operations.