Pnuematic Flashcards
What are the sources of air for the pneumatic system?
Engines
APU
Ground cart
What systems receive air from the pneumatic system?
Hydraulics (pumps)
Engines/APU (air start)
Air conditioning
Anti-icing
What does the air supply cabin pressure controllers (ASCPC) provide?
Control, indication, and BITE tests for all sections of pneumatic and pressurisation systems.
What are the 3 sections of the pneumatic system?
Engine air supply
Air supply distribution
Indicating
What are the 3 types of air taken from the engine?
High pressure
Intermediate pressure
Fan air
What is fan air used for?
To supply the pre cooler with cold air to cool the hot air from the other sources on that engine
What is a PRSOV?
Pressure regulating shut off valve
What is the HPSOV?
High pressure shut off valve
What are the 3 levels of control for the engine air supply?
Digital (primary)
Analogue (backup)
Pneumatic
What supplies the primary and backup engine air supply modes?
ASCPC
What supplies the pneumatic control mode?
High pressure fan air controller (HPFAC)
PRSOVC
Which engine can be isolated from the other engine and APU pneumatic ducts?
No.2 (right) engine
Which areas of the pneumatic system are monitored by the overheat detection sensors?
Pulmonary ducts
Wing ducts
Fuselage ducts
APU ducts
What do leaks in pneumatic ducting cause?
Overheating
What are the functions of the pneumatic controller?
Engine bleed air fault warning APU Bleed air valve control Fan air valve control Bleed valve control HP shutoff valve control Leak detection
