The following systems rely on the bleed air system for
operation:
operation:
- Air conditioning/pressurization
- Wing and engine thermal anti-icing
- Engine starting
- Hydraulic reservoirs pressurization
- Water tank pressurization
Air Systems SGR
B737-800/900 Bleed Air System
Air for the bleed air system can be supplied by the
engines, APU, or an external air cart/source. The APU or
external cart supplies air to the bleed air duct prior to
engine start. After engine start, air for the bleed air
system is normally supplied by the engines.
Air for the bleed air system can be supplied by the
engines, APU, or an external air cart/source. The APU or
external cart supplies air to the bleed air duct prior to
engine start. After engine start, air for the bleed air
system is normally supplied by the engines.
