BOMBARDIER CHALLENGER 300 — Pilot's Operating Handbook

This document is the Flight Crew Operating Manual for the Bombardier Challenger 300, specifically focusing on the Auxiliary Power Unit (APU). It provides detailed information about the APU's components, operation, and maintenance procedures.

• The APU is a Honeywell 36-150BD gas turbine unit located in the tailcone.
• It provides power for a 400-amp DC generator and supplies bleed air for the ECS.
• The APU features automatic fault detection and remote shutdown capabilities.
• Access to the APU is through a panel located on the fuselage underside.
• The APU has a self-contained lubrication system with a magnetic chip collector.
• Exhaust gases are discharged through a duct and eductor at the tailcone.
• The APU is controlled via a switch on the APU control panel in the flight compartment.
• Operational control is managed through the electrical and air conditioning control panels.