A320 Engine Start & Ignition Controls

A320 Engine Start & Ignition Controls
by jerome meriweather

To View a Control's Description, MouseOver it and ...
Click to "Show" - MouseDown to "Drag" - DoubleClick to "Hide"

Flight Deck Photos and/or Graphic Representation

ENG Mode Selector

NORM - Continuous ignition A + B is selected when the engine is running and one of the following is met:
- FLEX or TO/GA thrust is selected on the ground
- TO/GA thrust is selected in flight
- ENG ANTI ICE switch is ON
- Engine surge or stall occurs in flight
- FLAPS lever position is other then "0" in flight
CRANK - The start valve opens provided the ENG MAN START switch is ON and N₂ is less than 10%. Ignition is not supplied.
IGN / START - Provides continuous ignition if the ENG MASTER switch is ON and N₂ is at idle or greater.
During and automatic start, on airplanes placarded :EXTENDED DRY CRANK", expect ignition and fuel flow 50 seconds after ENG MASTER switch is selected ON.
On airplanes without the placard, expect ignition and fuel flow between approximately 15% and 20% N₂.
During a manual start the HP fuel valve is open and ignition is selected when the ENG MASTER switch is selected ON.

ENG MASTER Switches 1 & 2

ON - LP fuel valve opens, provided the ENG FIRE switch is in. During and automatic start, the HP fuel valve opens, provided the ENG MODE selector is at IGN/START.
During a manual start, the HP fuel valve opens, provided the ENG MODE selector is at IGN/START and the ENG MAN START switch is ON.
OFF - Closes the HP and LP fuel valves. Resets both channels of the FADEC.

FIRE / FAULT Lights

FIRE Light (Top) - Illuminates when the respective fire warning is activated and during engine fire test.
FAULT Light (Bottom) - Illuminates Amber in the event of an automatic start abort, or a disagreement between the HP fuel valve position of FADEC channel A and B.