Airbus A320 ATA 06 (Technical Notes)

ATA 06 – DIMENSIONS AND AREAS

• Dimensions
  • Fuselage Length – 123 feet approx
  • Wing span – 117 feet approx
  • Wing Sweep angle – (at 25% MAC) 24 Deg. 58′
  • Tail height – 40 feet approx

• Fuselage Datum Lines
  • X = Fore and aft distance from any point to STA0.
  • Y = Lateral distance from any point to aircraft centerline.
  • Z = Vertical distance from any point to aircraft centerline.

• Reference Axis
  • Fuselage – The reference X=0 in the X-axis is located 100 inch (2.54m / 254cm / 2540 mm) forward of the aircraft.
  • Wings – The reference axis is located at 73.54 in (1868 mm) from the aircraft X-axis.
  • Vertical Stabilizer – The reference station is Z=0 at the vertical Z-axis.
  • Horizontal Stabilizer – The reference station is Y=0 at the horizontal Y-axis.

• Station Numbers
  • STA – The station (STA) number is the distance in millimeters of the cross-section from a reference point. Reference station is for all structural measurements.
  • Use in production.
  • Note: AMM tasks are station-wise.

• Section Numbers
  • Use in manufacturing.

• Zones Numbers
  • 100 – Lower half of the fuselage to the rear pressure bulkhead
  • 200 – Upper half of the fuselage to the rear pressure bulkhead
  • 300 – Empennage, including fuselage aft of the rear pressure bulkhead
  • 400 – Power plants and struts or pylons
  • 500 – Left-wing
  • 600 – Right-wing
  • 700 – Landing gear and landing gear doors
  • 800 – Doors
  • Note: MPD tasks are zone-wise.

• Fuselage Frames
  • Total 87 frames – FR0 to FR87

• Ribs
  • Wings Ribs – 27 ribs in each wing
  • Vertical Stabilizer Ribs – 11
  • Horizontal Stabilizer Ribs – 14 ribs in each side

• Access Panels or Doors
  • Identification –  Three figures which identify the zone
    • Center if odd – LH
    • Center if even – RH
  • FWD PAX DOOR – LH – 831 ; RH – 841
  • AFT PAX DOOR – LH – 832 ; RH – 842
  • Cargo Doors – FWD – 825 ; AFT – 826
  • Left emergency exit – FWD – 833 ; AFT – 834
  • Right emergency exit – FWD – 843 ; AFT – 844
  • Avionics compartments door
    • 811 – FWD (90 VU)
    • 812 – Lateral LH (oxy compartment)
    • 822 – Lateral RH (battery compartment)
    • 824 – AFT (80 VU)
  • Accessory compartment access door – 312AR (AFT Equipment Compartment) (THS compartment)
  • APU access door – LH Door – 315AL ; RH Door – 316AR
  • Maintenance door- 314AR (APU air intake flap)