2-ENG

Question 1

What must the flight crew be aware of when doing a Manual Start on the
ground or an Auto Start in the Air?

Answer 1

• The crew must abort the start if something goes wrong

Question 2

What are the primary differences between a manual and a normal automatic start?

Answer 2

• During automatic start, the FADEC provides full monitoring during a manual start and will provide appropriate ECAM cautions & procedures to follow in the event of a start fault
• During manual start, automatic start interruption and auto-crank are not available. The flight crew must closely monitor engine start.

Question 3

With the ENG MODE selector in IGN/START what occurs when the ENG MAN START pushbutton is pressed?

Answer 3

• The start valve opens
• Both pack flow control valves close

Question 4

What is the primary difference between the IAE V2500 and PW1100G engine?

Answer 4

• The NEO PW1100G engine includes a Fan Drive Gear System (FDGS) which allows the low pressure turbine to operate at higher rotational speeds for peak efficiency while the engine’s fan can operate at lower speeds for optimum propulsion efficiency and lower noise levels.

Question 5

When would a First Officer manually abort an AUTOMATIC start on the ground and what COM procedure would you apply after selecting the master switch to off?

Answer 5

• The ground crew reports a tail pipe fire, accomplish the FCOM Abnormal/ Emergency Procedures “Engine Tailpipe Fire” procedure.
• In the case of electrical power supply interrupted during the start sequence
  (indicated by loss of the ECAM DUs), FCOM supplemental procedure Engine
  Ventilation (Dry Cranking).

Question 6

What is the approximate time the engine will dry crank during an Automatic
engine start?

Answer 6

• IAE V2500 = Approximately 30 Seconds
• PW1100G = Approximately 2 Minutes