DOC AIRBUS | AMM A320FAILERONS - DESCRIPTION AND OPERATION
** ON A/C NOT FOR ALL
1. General
The aileron is installed on the fixed structure of the trailing edge. It is connected to the outer rear spar between RIB22 and RIB27.
The aileron is extended or retracted with set spoilers for this function:
The aileron drive mechanism is electrically controlled (Ref. AMM D/O 27-14-00-00) and uses hydraulic power to move the control surface.
** ON A/C NOT FOR ALL The aileron is installed on the fixed structure of the trailing edge. It is connected to the outer rear spar between RIB22 and RIB27.
AileronThe aileron is extended or retracted with set spoilers for this function:
- with spoilers 2 thru 5 to control roll.
The aileron drive mechanism is electrically controlled (Ref. AMM D/O 27-14-00-00) and uses hydraulic power to move the control surface.
2. Description
The aileron is a wedge-shaped structure and has these resin impregnated carbon fiber components:
** ON A/C NOT FOR ALL The aileron is a wedge-shaped structure and has these resin impregnated carbon fiber components:
- inboard and outboard end ribs
- internal ribs
- top and bottom skins, with honeycomb cores
- spar.
3. Component Description
The top and bottom skins and the end ribs of the aileron make a wedge-shaped stucture. It is strengthened by the internal ribs and the spar. Seven machined aluminum alloy brackets are attached to the spar.
Two of the brackets connect to actuators which are installed on the fixed structure of the trailing edge. The other five are hinge brackets. The actuators are electrically controlled and use hydraulic power to extend or retract the aileron. Also attached to the spar are aluminum alloy diaphragms and plate seals, which make a smoother air flow around the aileron. There are two inspection holes in the spar.
On the ends of the aileron there are silicon rubber seals attached to the top and bottom skins. Four static dischargers and retainers are mounted at the trailing edge of the aileron. Two lightning strips are mounted on the top skin of the aileron. One of these lightning strips is at the inboard end between the trailing edge and the number 2 hinge bracket. The other lightning strip is at the outboard end between the number 3 static discharger and the number 5 hinge bracket. Gaps between the aft-edge of the ribs and the channel help the aileron to drain. The aileron has a layer of glass-fibre on its trailing edge at the joint between the top and bottom skins and the channel. This glass-fibre layer prevents corrosion of the aileron trailing edge.
The top and bottom skins and the end ribs of the aileron make a wedge-shaped stucture. It is strengthened by the internal ribs and the spar. Seven machined aluminum alloy brackets are attached to the spar.
Two of the brackets connect to actuators which are installed on the fixed structure of the trailing edge. The other five are hinge brackets. The actuators are electrically controlled and use hydraulic power to extend or retract the aileron. Also attached to the spar are aluminum alloy diaphragms and plate seals, which make a smoother air flow around the aileron. There are two inspection holes in the spar.
On the ends of the aileron there are silicon rubber seals attached to the top and bottom skins. Four static dischargers and retainers are mounted at the trailing edge of the aileron. Two lightning strips are mounted on the top skin of the aileron. One of these lightning strips is at the inboard end between the trailing edge and the number 2 hinge bracket. The other lightning strip is at the outboard end between the number 3 static discharger and the number 5 hinge bracket. Gaps between the aft-edge of the ribs and the channel help the aileron to drain.
The top and bottom skins and the end ribs of the aileron make a wedge-shaped stucture. It is strengthened by the internal ribs and the spar. Seven machined aluminum alloy brackets are attached to the spar.
Two of the brackets connect to actuators which are installed on the fixed structure of the trailing edge. The other five are hinge brackets. The actuators are electrically controlled and use hydraulic power to extend or retract the aileron. Also attached to the spar are aluminum alloy diaphragms and plate seals, which make a smoother air flow around the aileron. There are two inspection holes in the spar.
On the ends of the aileron there are silicon rubber seals attached to the top and bottom skins. Four static dischargers and retainers are mounted at the trailing edge of the aileron. Two lightning strips are mounted on the top skin of the aileron. One of these lightning strips is at the inboard end between the trailing edge and the number 2 hinge bracket. The other lightning strip is at the outboard end between the number 3 static discharger and the number 5 hinge bracket. Gaps between the aft-edge of the ribs and the channel help the aileron to drain. The aileron has a layer of glass-fibre on its trailing edge at the joint between the top and bottom skins and the channel. This glass-fibre layer prevents corrosion of the aileron trailing edge.
The top and bottom skins and the end ribs of the aileron make a wedge-shaped stucture. It is strengthened by the internal ribs and the spar. Seven machined aluminum alloy brackets are attached to the spar.
Two of the brackets connect to actuators which are installed on the fixed structure of the trailing edge. The other five are hinge brackets. The actuators are electrically controlled and use hydraulic power to extend or retract the aileron. Also attached to the spar are aluminum alloy diaphragms and plate seals, which make a smoother air flow around the aileron. There are two inspection holes in the spar.
On the ends of the aileron there are silicon rubber seals attached to the top and bottom skins. Four static dischargers and retainers are mounted at the trailing edge of the aileron. Two lightning strips are mounted on the top skin of the aileron. One of these lightning strips is at the inboard end between the trailing edge and the number 2 hinge bracket. The other lightning strip is at the outboard end between the number 3 static discharger and the number 5 hinge bracket. Gaps between the aft-edge of the ribs and the channel help the aileron to drain.