Engines

Question 1

During automatic start when does ignition turn on and when does it turn off

Answer 1

On: N3 between 25% and 30%
Off: N3 at 50%

Question 2

During automatic start when does the start valve close

Answer 2

N3 >_ 50%

Question 3

During automatic engine start when is the EGT rise expected

Answer 3

Maximum 30s after fuel introduced

Question 4

What does FADEC abort a start for (5)

Answer 4

Hot start
Hung start
Surge
No light up
N1 rotor locked

Question 5

What is the limiting EGT for T/O or G/A

Answer 5

920 for 20s
900 for 5min
900 for 10min if OEI

Question 6

What is the limiting EGT for MCT

Answer 6

850

Question 7

What is the limiting EGT for starting

Answer 7

700 on ground
850 inflight

Question 8

Maximum engine oil temperature

Answer 8

190

Question 9

Minimum oil temperature before takeoff

Answer 9

20

Question 10

Minimum oil pressure

Answer 10

25 PSI

Question 11

Minimum oil quantity

Answer 11

6qt + 0.7qt/hr but not less than 15qt

Question 12

Starter limitations

Answer 12

Maximum continuous operation 5 min
Two 3 min duty cycle and a 1 min cycle with 0 N3 been cycles

30 minute cooldown

Question 13

How many oil scavenge pumps

Answer 13

6

Question 14

What is the fuel transfer sequence?

Answer 14

Centre tank transfers to inner
Inner tank empties to 4000kg
Trim tank transfers to inner
Inner tank empties to 3500kg
Outer tank transfers to inner

Question 15

When do trim tank transfers stop/start

Answer 15

Starting climbing through FL255
Stop descending through FL245 or if ETE <35 min

Question 16

Fuel jettison rate?

Answer 16

1000kg/min

Question 17

Jettison stops automatically at what fuel level?

Answer 17

Combined inner tank <10,000kg

Question 18

APU starter duty cycle

Answer 18

3 consecutive starts, 60 min cooldown

Question 19

APU shutdown time

Answer 19

15s or 85s after bleed used

Question 20

APU EGT Limits

Answer 20

Start 1250C
Running 650C