Lights And Switches

Question 1

ENG panel fault light

Answer 1

• An automatic start abort.
  • A disagreement exists between the HP fuel valve position and its commanded position.
  • There is a thrust control malfunction

Question 2

ENG bleed fault

Answer 2

• Overpressure downstream of the engine bleed valve.
• Bleed overheat.
• Wing or engine leak on associated side.
• Bleed valve not closed during engine start.
• Bleed valve not closed with APU BLEED pushbutton ON.
• HP valve failed open on ground.
• Single BTS failure on ground or BTS disagree on ground.
• Dual BTS failure in flight or on ground.
• Fan Duct burst detected by the FADEC (LEAP-1A engine only).

Question 3

Eng Bleed fault

Answer 3

Leak
Overtemp
Over press.
During start - valve is open
During start - apu bleed on
Hp valve failed open on ground
Single BTS fail on ground or BTS disagree on ground
Dual BTS fail on ground or in flight
Fan duct burst detected by fadec ( leap 1-A engines )

Question 4

Fuel mode sel pb fault

Answer 4

Center tank greater than 550lbs either wing tank less than 11,000lbs

Question 5

On BATT

Answer 5

One or more ADIRS is on batt (external horn)
Self test

Question 6

IR amber fault light

Answer 6

Steady - falt in IR
Flashing - hdg and attitude can be recovered in ATT mode

Question 7

IR white align ligh

Answer 7

Steady - normal during alignment (approx 10 mins )
Flashing - no position, bad position , planes been moved significantly