DSC ENG

Question 1

What is operated by the accessory gear box ?

Answer 1

Oil feed pump
main eng fuel pump
fadec alternator
eng driven HYD pump
Eng driven GEN
pneumatic starter

Question 2

What control the ENG and what redundancy is available ?

Answer 2

2 Fadec which control the complete engine management
Each Fadec has two channels, one is active the other is on standby. In case of failure the other takes over.

Question 3

How many idle are available ?

Answer 3

• modulated idle (regulated by bleed demand and ambient condition)
• approach idle in flight when flaps are extended => Allow to rapidly accelerate from idle to go around
• reverse idle

Question 4

What function are perform by the FADEC ?

Answer 4

control of gas generator
protection against engine exceeding limits
power management
start sequence
thrust reverser control
fuel recirculation
transmission of eng parameter
detection, isolation and recording of failures