DOC AIRBUS | AMM A320FFAIRINGS - DESCRIPTION AND OPERATION
** ON A/C NOT FOR ALL
1. General
Fairings are installed on the outer wing to seal:
** ON A/C NOT FOR ALL Fairings are installed on the outer wing to seal:
Fairings- the flap track drive mechanisms
- the engine pylon and its systems.
- the flap track drive mechanisms
- the flap tab hinges
- the engine pylon and its systems.
2. Component Description
A. Forward Fixed Fairings
The forward fixed fairings are made of a thermo-plastic. A silicon rubber seal is riveted to the top edge, and touches the outer wing bottom skin. A steel slider-spigot near the forward end, attaches to the bottom skin.
The forward fixed fairings are made of a thermo-plastic. A silicon rubber seal is riveted to the top edge, and touches the outer wing bottom skin. A steel slider-spigot near the forward end, attaches to the bottom skin.
B. Flap Track Fairings
The flap track fairings 2, 3 and 4 are attached to fittings (Ref. AMM D/O 57-26-00-00) on the bottom surface of the wing.
The flap track fairings are:
A steel swivel link near the forward end of the fixed fairing attaches the fairing to the wing bottom skin.
The flap track fairings 2, 3 and 4 are attached to fittings (Ref. AMM D/O 57-26-00-00) on the bottom surface of the wing.
The flap track fairings are:
- the fixed fairing
- the movable fairing.
A steel swivel link near the forward end of the fixed fairing attaches the fairing to the wing bottom skin.
(1) Fixed fairing
The fixed fairing is carbon fibre with a Nomex honeycomb core. A silicon rubber seal, which is riveted to the top edge, touches the outer wing bottom skin.
There are two aluminum alloy anti-peel strips at the aft end (one on each side of the fairing), to prevent damage when the fairing is installed on the aircraft. Polyester access covers are provided on each side at the aft end for access to the fairing rear attachment fittings.
The fixed fairing is carbon fibre with a Nomex honeycomb core. A silicon rubber seal, which is riveted to the top edge, touches the outer wing bottom skin.
There are two aluminum alloy anti-peel strips at the aft end (one on each side of the fairing), to prevent damage when the fairing is installed on the aircraft. Polyester access covers are provided on each side at the aft end for access to the fairing rear attachment fittings.
(2) Movable fairing
The movable fairing is made of carbon fibre with a honeycomb core.
Silicon rubber seals and seal mouldings, which are attached to the top edge of the fairing, touch the wing bottom skin. There is a pivot seal on the forward end which closes the joint between the fixed and movable fairings. The fairing has two pivot mounting brackets which hold bearings and are made of aluminum alloy. Clip-in covers of polyester protect the pivot bolt-heads.
An aluminum alloy platform attaches the flap link connecting rod to the rear of the fairing (Ref. AMM D/O 27-54-00-00).
Aft of the platform there is an aluminum alloy mounting bracket to which a top cover, made of glass fiber with a honeycomb core, is attached. A thermo-plastic tailcone is attached to the aft end of the fairing. It has a static discharger and retainer (Ref. AMM D/O 23-60-00-00).
The movable fairing is made of carbon fibre with a honeycomb core.
Silicon rubber seals and seal mouldings, which are attached to the top edge of the fairing, touch the wing bottom skin. There is a pivot seal on the forward end which closes the joint between the fixed and movable fairings. The fairing has two pivot mounting brackets which hold bearings and are made of aluminum alloy. Clip-in covers of polyester protect the pivot bolt-heads.
An aluminum alloy platform attaches the flap link connecting rod to the rear of the fairing (Ref. AMM D/O 27-54-00-00).
Aft of the platform there is an aluminum alloy mounting bracket to which a top cover, made of glass fiber with a honeycomb core, is attached. A thermo-plastic tailcone is attached to the aft end of the fairing. It has a static discharger and retainer (Ref. AMM D/O 23-60-00-00).
(3) Fixed fairing
The fixed fairing is carbon fibre with a Nomex honeycomb core. A silicon rubber seal, which is riveted to the top edge, touches the outer wing bottom skin.
There are two aluminum alloy anti-peel strips at the aft end (one on each side of the fairing), to prevent damage when the fairing is installed on the aircraft. Polyester access covers are given on each side at the aft end for access to the fairing rear attachment fittings.
The fixed fairing is carbon fibre with a Nomex honeycomb core. A silicon rubber seal, which is riveted to the top edge, touches the outer wing bottom skin.
There are two aluminum alloy anti-peel strips at the aft end (one on each side of the fairing), to prevent damage when the fairing is installed on the aircraft. Polyester access covers are given on each side at the aft end for access to the fairing rear attachment fittings.
(4) Movable fairing
The movable fairing is made of carbon fibre with a honeycomb core.
Silicon rubber seals and seal mouldings, which are attached to the top edge of the fairing, touch the wing bottom skin. There is a pivot seal on the forward end which closes the joint between the fixed and movable fairings. The fairing has two pivot mounting brackets which hold bearings and are made of aluminum alloy. Clip-in covers of polyester protect the pivot bolt-heads.
An aluminum alloy platform attaches the flap link connecting rod to the rear of the fairing (Ref. AMM D/O 27-54-00-00).
Aft of the platform there is an aluminum alloy mounting bracket to which a top cover, made of glass fiber with a honeycomb core, is attached. A thermo-plastic tailcone is attached to the aft end of the fairing.
The movable fairing is made of carbon fibre with a honeycomb core.
Silicon rubber seals and seal mouldings, which are attached to the top edge of the fairing, touch the wing bottom skin. There is a pivot seal on the forward end which closes the joint between the fixed and movable fairings. The fairing has two pivot mounting brackets which hold bearings and are made of aluminum alloy. Clip-in covers of polyester protect the pivot bolt-heads.
An aluminum alloy platform attaches the flap link connecting rod to the rear of the fairing (Ref. AMM D/O 27-54-00-00).
Aft of the platform there is an aluminum alloy mounting bracket to which a top cover, made of glass fiber with a honeycomb core, is attached. A thermo-plastic tailcone is attached to the aft end of the fairing.
C. Flap Tab Hinge Fairings (Ref. 27-50-00)
(1) Inboard hinge (1A) fairing
The inboard hinge, nearest to the wing root, has three main parts:
The inboard hinge, nearest to the wing root, has three main parts:
- a hinged forward section which is connected to the shroud box
- a fixed centre section connected to the inboard flap
- a movable aft section connected to the flap tab and hinge.
(2) Outboard hinge fairings (Ref. AMM D/O 27-50-00-00)
The other hinge fairings (outboard of hinge 1A) have two main parts:
The other hinge fairings (outboard of hinge 1A) have two main parts:
- a fixed forward section connected to the flap
- a movable aft section connected to the flap tab and hinge.
There is one fairing of this type on the inboard flap. All the fairings on the outboard flap are of the 2-section type.
D. Engine Pylon Aft Fairings
The engine pylon has two aft fairings:
The engine pylon has two aft fairings:
- the aft fixed fairing which has one attachment point on the bottom surface of the wing at the false rear spar (Ref. AMM D/O 54-54-00-00)
- the aft movable fairing which is linked to the inboard flap by a swivel rod (Ref. AMM D/O 54-55-00-00).