70 - Engines Flashcards
Which rotor in the engine provides the N2 speed?
The HP rotor in the core
What does FADEC stand for?
Full Authority Digital Engine Control
How many channels does the FADEC have?
2 channels
What is soft go around?
After selecting TOGA then going back to the FLEX/MCT detent provides rate of 2000ft/min
Which valves close and which one opens when the master switch is set to off?
LP and HP fuel shutoff valves
Fuel return valve
Opens the bypass valve
Where is the fuel oil heat exchanger and what does it do?
It is part of the fuel recirculating route. It cools the oil and heats the fuel
Which hydraulic systems control the thrust reversers in which side?
Green controls eng 1
Yellow controls eng 2
During start when does the ignition come on and cut out?
Comes on at 16% N2 and cuts out at 50% N2
Describe the stages on an automatic engine start?
Pack valves close LP fuel valve opens Start valves open N2 >16% Ignition starts N2 >22% HP Fuel valve opens N2 >50% start valve closes and ignition stops
What oil pressure will produce an ECAM with a red indication on the eng SD page?
13 PSI
When will ECAM produce an advisory for oil pressure?
16 PSI
What VIB level will produce an ECAM advisory?
N1 > 6
N2 > 4.3
