Where does the APU get its fuel from?

The Auxiliary Power Unit (APU) typically draws its fuel from the left collector tank. This system is designed to ensure that the APU has a dedicated source of fuel that allows it to operate independently from the main engines, particularly during ground operations or when the engines are not running.

The left collector tank is utilized for its strategic position and availability, ensuring an adequate and reliable fuel supply for the APU's functioning needs. Understanding the specific source from which the APU gets its fuel is vital for maintenance, troubleshooting, and operational efficiency, as this knowledge can impact how fuel systems are managed and how the APU is operated in various circumstances. Without awareness of these systems, issues could arise during flight operations or pre-flight checks.