-
a false rear spar
-support structures for the trailing edge control surfaces
-access panels.
There are attachments for:
-
the trailing edge control surfaces and their drive mechanisms.
-
the main landing gear (Ref. 57-26-00) the engine pylon (Ref. 57-26-00).
3. Component Description
_____________________
A. Overwing Panel and Underwing Panel
The overwing panel and the underwing panel are installed inboard of the MLG structure. They are made of carbon fiber with honeycomb cores. Beams add strength to the overwing panel.
Links and bolts attach the overwing panel to:
-
the fuselage
-
the MLG support structure
-
the shroud box
-
the top skin.
Trailing Edge
Figure 001
R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 57-51-00Page 2 1201-299, 401-499, 1Aug 01/05 1 1 1CES 1
R Trailing-Edge Fixed Structure
R Figure 001A
R 1EFF : 301-399, 1 57-51-00 Page 3
1 1 May 01/04
1 1
1CES 1
The underwing panel is attached by links to the rear spar and by bolts to the No. 3 bottom skin panel.
**ON A/C 001-049, 051-057, 101-101,
(Ref. Fig. 002)
B. Shroud Box and Fixed Shroud
The shroud box is aft of the rear false spar, adjacent to the fuselage. It is attached to the overwing panel with bolts and to the fuselage with links. The shroud box has three aluminum-alloy spars, two machined ribs and intermediate sheet ribs. There is a top skin, a bottom skin and a diaphragm. There is a trailing edge panel which has top and bottom etched skins with a honeycomb core and an aluminum-alloy trailing edge block.
The fixed shroud is aft of the rear false spar, immediately outboard of the shroud box. It has two machined aluminum-alloy spars/channels, a top plate skin and an etched bottom skin. There is a trailing edge panel which has top and bottom etched skins with a honeycomb core and an aluminum-alloy trailing edge block. There is an escape-rope attachment on the top skin. Links and bolts attach the fixed shroud to the shroud box and the rear spar.
R **ON A/C 058-099, 102-149, 151-199, 201-299, 301-399, 401-499,
(Ref. Fig. 002A)
B. Shroud Box and Fixed Shroud
The shroud box is aft of the rear false spar, adjacent to the fuselage. It is attached to the overwing panel with bolts and to the fuselage with links. The shroud box has three aluminum-alloy spars, two machined ribs and intermediate sheet ribs. There is a top skin, a bottom skin and a diaphragm.
The fixed shroud is aft of the rear false spar, immediately outboard of the shroud box. It has two machined aluminum-alloy spars/channels, a top plate skin and an etched bottom skin. There is a trailing edge panel which has top and bottom etched skins with a honeycomb core and an aluminum-alloy trailing edge block. There is an escape-rope attachment on the top skin. Links and bolts attach the fixed shroud to the shroud box and the rear spar.
Trailing Edge Figure 002
R 1EFF : 1 1 1CES 001-049, 051-057, 101-101, 1 111 57-51-00 Page 5 May 01/05
Trailing Edge
Figure 002A
R 1EFF : 058-099, 102-149, 151-199, 201-299, 1 57-51-00Page 6 1301-399, 401-499, 1Aug 01/05 1 1 1CES 1 **ON A/C ALL
C. Rear False Spar
The rear false spar is aft of the inner rear spar. It is joined to the rear spar at the kink position adjacent to RIB9. The inboard end is connected to the inner rear spar by the MLG support rib.
The rear false spar has attachments for:
-
the pintle (aft fitting)
-
the flap track 2
-
the spoiler 1 hinges.
D. Support Structures for the Trailing Edge Devices
The fixed trailing edge includes two support structures. One is adjacent to RIB9, at the kink position, and gives support to the inboard and outboard flaps. This, the flap support structure, has three machined ribs and three sheet ribs. Aluminum-alloy stiffeners, diaphragms and a Z-member give strength to the structure. The top and bottom skins, and a trailing edge strip, are attached to the ribs.
The second support structure is immediately inboard of the aileron and gives support to the aileron and the outboard flap. It has two machined aluminum alloy ribs, a top shroud panel and two bottom access panels. A machined aluminum alloy track, with a steel liner, is attached to one rib. A roller bearing attached to the outboard flap goes into the track when the flaps are retracted.
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