OVHT warning is associated with which fuel tank condition?

• A. Non-Feeding Tank
• B. Aux Tank
• C. Wing Tank
• D. Center Tank

Answer: (A)

OVHT is a warning tied to fuel temperature and how fuel is cooled and circulated in the tank system. When a tank is not part of the active feed to the engines (a non-feeding tank), its fuel isn’t being moved through the pumps and heat exchangers as readily, so heat can soak into the fuel from surrounding structures and the air/engine environment. If that stagnant fuel gets too hot, the OVHT annunciation triggers. This makes sense because the risk of overheating is greatest in a tank that isn’t circulating fuel for cooling or supply, whereas tanks that are actively feeding or circulating fuel have more effective heat removal.