Where is the APU located on the 737?

Where is the APU located on the 737?

• A. Tail section
• B. Nose
• C. Wings
• D. Under-floor baggage

Answer: (A)

The APU is located in the tail section. On a 737, the Auxiliary Power Unit sits inside the tail cone near the rear of the fuselage. This placement keeps the APU away from the main engines and wings, and provides a direct path for its exhaust while allowing easy access for maintenance. The APU powers electrical systems and provides bleed air for engine starts and cabin conditioning when the engines aren’t running or external power isn’t available. The other areas—the nose, wings, or under-floor baggage compartment—do not house the APU, as they are used for different systems or cargo space and aren’t suitable for a small turbine unit and its exhaust.

The APU is located in the tail section. On a 737, the Auxiliary Power Unit sits inside the tail cone near the rear of the fuselage. This placement keeps the APU away from the main engines and wings, and provides a direct path for its exhaust while allowing easy access for maintenance. The APU powers electrical systems and provides bleed air for engine starts and cabin conditioning when the engines aren’t running or external power isn’t available. The other areas—the nose, wings, or under-floor baggage compartment—do not house the APU, as they are used for different systems or cargo space and aren’t suitable for a small turbine unit and its exhaust.