Systems 2 Flashcards
The air management system comprises which three systems?
Pneumatic system, cabin pressurisation and control system (CPCS) and environmental Control System (ECS)
The Pressure regulation and shutoff valves (PRSOV) regulate bleed air to what pressure?
28psig(+/-3)
What regulates the bleed air pressure from the engine?
The pressure regulating and shutoff valve
What is the a/c ceiling limits with both bleed supplies and a single bleed supply available?
41,000ft and 31,000ft
What effect does the MFD being in reversionary mode have on the pressurisation system?
The system must be controlled manually by the crew
When controlling the pressurisation manually how long should you operate the switch?
0.5 secs
What happens when the DUMP button is pressed?
The outflow valve operates and recirc fans are turned off
Cabin altitude depressurisation limits in AUTO and Manual DUMP?
Auto - 12,000
Manual DUMP - 14,500
Normal operating differential pressure range?
-0.1 to +8.4psi
How is ram air used in Phenom?
Supply fresh air to cockpit/cabin and decrease bleed air temp in heat exchanger
Where is the oxygen cylinder located
Nose baggage compartment
What happens - oxy supply ‘PAX AUTO’
Auto deployment PAX Oxy. Cabin pressure 14700’ +- 300’
What does white colour indicate on oxy display MFD synoptic page?
Oxy pressure lower than 1590psi and higher or equal to 730psi
730-1590psi
Purpose of oxy supply handle
Open and close oxy cylinder regulator valve
Oxy supply control knob ‘PAX override’
Deploys cabin masks if the cable actuator is in the pushed position
What pressure EICAS display a green oxy pressure
1590psi
Hydraulic pressure normal operating range
2400-3000 +50 PSI
What colour readout when hyd press below 1500psi
Yellow
What pressure does emergency brake accumulator pressure turn yellow
1800psi
Where are the hydraulic power pack and reservoir located
Larger of the two forward hatches on the right hand side of a/c
Electric cooling fan (for hyds) operates when
WOW, nose hear down and locked, at least 1 gen online
Effect if hyd pump is selected ‘on’
Pump runs continuously. Thermal cut out (motor and oil) are lost
Hydraulic Electric motor cooling fan location?
Small panel on RHS of nose
Function of shimmy damper?
Moderates wheel movement at high speed