SPOILER 4 - DESCRIPTION AND OPERATION
_____________________________________
1. General
_______
(Ref. Fig. 001)
R The spoiler 4 is installed on the fixed structure of the trailing edge. It is connected to the outer rear spar between RIB16 and RIB19.
The spoiler 4 is one of five spoilers which are extended or retracted for these functions:
-roll function
-speedbrake function
-ground spoilers function.
The drive mechanism of the spoilers is electrically controlled (Ref. 27-90-00) and uses hydraulic power to extend or retract the surfaces (Ref. 27-64-00).
R
2. Component Description
_____________________ The spoiler is a wedge-shaped structure. It has carbon fiber top and bottom skins, sides and a trailing edge profile, bonded to a honeycomb core. There are four machined aluminum-alloy attachment-fittings. These are the inboard and outboard hinge brackets (with links), the center hinge and the spoiler actuator attachment-fitting. The actuator attachment-fitting is installed within the center hinge. The spoiler is attached by the links and the center hinge to the outer rear spar.
A titanium alloy rubbing strip is attached to the trailing edge of the spoiler, to prevent damage to the spoiler when the outboard flap is retracted. Seals are located at the inboard and outboard ends and along the leading edge of the spoiler.
Spoiler 4
Figure 001
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SKINS AND PLATING - CLEANING/PAINTING
_____________________________________ TASK 57-74-11-100-002 Cleaning and Painting of the Spoiler 4 CAUTION : BE CAREFUL WHEN YOU DO MAINTENANCE TASKS ON THE WING TRAILING EDGE:
_______
-
DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE RACEWAYS.
-
DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE INSTALLATIONS.
-MAKE SURE THAT THE ELECTRICAL CABLES ARE INSTALLED CORRECTLY. INCORRECT INSTALLATION CAN CAUSE DAMAGE.
1.
Reason for the Job
__________________
Self Explanatory
2.
Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
57-71-11-100-001 Cleaning and Painting of the Spoiler 1
3. Job Set-up
__________ Subtask 57-74-11-941-054
A. Not applicable.
4. Procedure
_________
CAUTION : BE CAREFUL WHEN YOU DO MAINTENANCE TASKS ON THE WING TRAILING
_______
EDGE:
-
DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE RACEWAYS.
-
DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE INSTALLATIONS.
-MAKE SURE THAT THE ELECTRICAL CABLES ARE INSTALLED CORRECTLY. INCORRECT INSTALLATION CAN CAUSE DAMAGE.
Subtask 57-74-11-110-050
A. The cleaning/painting procedure is the same for all of the spoilers
(Ref. TASK 57-71-11-100-001).
SPOILER 5 - DESCRIPTION AND OPERATION
_____________________________________
1. General
_______
(Ref. Fig. 001)
R The spoiler 5 is installed on the fixed structure of the trailing edge. It is connected to the outer rear spar between RIB19 and RIB22.
The spoiler 5 is one of five spoilers which are extended or retracted for these functions:
-roll function
-speedbrake function
-ground spoilers function
The drive mechanism of the spoiler is electrically controlled (Ref. 27-90-00) and uses hydraulic power to extend or retract the surfaces (Ref. 27-64-00).
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