The heartbeat of the aircraft. Most pilots memorize this as the "Rack."
: This section manages the "bleed air" taken from the engines. It is essential for cabin pressurization and thermal anti-ice protection, ensuring the aircraft remains a safe environment at 41,000 feet. The "Dark Cockpit" Philosophy The 737-800 adheres to the "Dark Cockpit" concept boeing 737800 overhead panel pdf new
3.6 Lighting and Cabin Systems
: Switches for wing and engine anti-ice, as well as windshield and probe heat. External Lighting The heartbeat of the aircraft