LED PANEL

Question 1

What does this panel indicate (general) and when all lights are out?

Answer 1

• indicates position of individual LE Flaps & Slats
• Extinguished: related LEDs retracted
• indicates position of 2 LE flaps and 4 LE slats
• LE Flaps - 2 positions retract & extend
• LE Slats - 3 positions - retract, extend, fully extended

Question 2

What is the name & function of the LED amber lights.

Answer 2

• LED ‘TRANSIT’ light
• Illuminated: related LED in transit or not in position.
• 12 lights total (also illuminates “LE FLAPS TRANSIT” light on front panel
• approx 30 sensors - ran via the FSEU which sends signals to SYMD (stall wrng), FDAU (flt data rec) and PSEU (takeoff warning)
  *

Question 3

Green ‘Extended’ Light indication.

Answer 3

• EXT - related LE slat in EXTENDED (intermediate) position
• Flap Lever = position 1 to 5 (LE FLAPS - FULL EXT) & (SLATS - EXT) positions

Question 4

LED ‘FULL EXTENDED’ Light Illumination

Answer 4

• Green - related LE device ‘FULLY’ extended
• TE Flaps > 5 - (LE FLAPS - FULL EXT) & (SLATS - FULL EXT)
• SLATS will indicate ‘FULL EXT’ during AUTO-SLAT extension.

Question 5

What does TEST switch do?

Answer 5

it is a LIGHT test only.