Engines

Question 1

What type of engine is installed on the aircraft and with how many FADECs?

Answer 1

IAE V2500-A5. 1 FADEC per engine with 2 channels.

Question 2

What does the FADEC do following an Automatic Start Abort?

Answer 2

Announces fault and identifies it in ECAM message. Will start an abort sequence.

Question 3

Describe a normal automatic start sequence

Answer 3

Thrust levers idle
ENG MODE selctor IGN/Start
Announce ENGINE 2(1) start
After all Amber crosses except N1 and N2 messages have dissapear4d on ECAM
ENG 2 MASTER lever on

N2 increases
30s after MASTER on ignition on
FF increases
20s after FF, EGT increases
N1 increases before N2 is 34%
At 43% igniter indication off
Above 43% starter valve closes

Question 4

What are the normal engine parameters after start at ISA sea level?

Answer 4

EPR 1.01
N1 21.4%
FF 350kg/h
EGT 424
N2 57.8%

Question 5

What is the role of FADEC during a manual start?

Answer 5

Passive survey of engine parameters uo to 50% N2. Crew are made aware of abnormal starts by ECAM warning.

Question 6

During a manual start process, what does pressing the MAN START pb do?

Answer 6

Opens the starter valve

Question 7

During a manual start what happens when the MASTER sw is selected ON? When should this be selected?

Answer 7

When N2 reaches max motoring speed (min 16%) and after 30 seconds, ENG MSTR can be turned on. Igniters A & B and fuel flow come on.

Question 8

What closes the start valve on a manual start and when?

Answer 8

FADEC at 43% N2

Question 9

When will the highlighted grey background around N2 indication disappear during engine start?

Answer 9

When the engine start/crank procedure has finished.

Question 10

In what situation should an inflight relight not be attempted? Why?

Answer 10

Engine fire or engine damage. No FADEC protection.

Question 11

In what circumstances would you see an illuminated FAULT light on the ENG panel?

Answer 11

Position of HP fuel shutoff valve is abnormal, OR start aborted OR malfunction of thrust control.

Question 12

How can the pilot cary out a dry cranking cycle manually? When would this be appropriate?

Answer 12

ENG MASTER to OFF
ENG MODE to CRANK
ENG START to ON

Usually done after an unsuccessful start attempt on the ground. (5 min max CRANK cycle time)

Question 13

When the engine is running, what causes the continuous ignition to operate automatically?

Answer 13

Anti ice on
Max TO thrust EPR or Rated N1 mode
Flex TO thrust EPR mode
EIU data failed
Approach idle selected
In-floghy unscheduled sub idle or surge
Master lever on-off-on

Question 14

What are the limiting EGTs for TO/GA, MCT and starting

Answer 14

TO/GA 635
MCT 610
Starting 635

Question 15

What is the minimum IASfor full reverse? Can it be used in emergency?

Answer 15

70kts but can be used to full stop in event of RTO.

Question 16

What are the engine oil limitations?

Answer 16

Continuous 155 degrees
Cont (15 mins) 165 degrees
Min Starting temp -40
Min temp pre takeoff +50
Min oil quantity 11 qrt plus 0.3/hr

Question 17

Can the TFLEX be lower than the flat temperature TREF or the actual.OAT?

Answer 17

No

Question 18

What are the starter limitations?

Answer 18

15s pause between successive start cycles.
30 min cooling period after 3 attempts.
2 min cycle max on a manual start.
5 min max CRANK cycle.
Do not run starter when N2 is above 10% on ground and 18% in flight.

Question 19

What happens if you hold the A/THR disconnect button for more than 15 seconds?

Answer 19

A/THR will disconnect for the remainder of the flight. All A/THR modes including A FLOOR will be lost.

The A/THR will be recovered at the next FMGC power-up on the ground.

Question 20

Which hydraulic actuators operates on thrust reversers 1 and 2 respectfully?

Answer 20

Green and Yellow

Question 21

When and how is FADEC electrically powered?

Answer 21

verify

Question 22

What happens at 43% N2 during an automatic start?

Answer 22

Igniters go off and start valve closes