C. Referenced Information
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REFERENCE DESIGNATION
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27-50-00-866-009 Retraction of the Flaps on the Ground
27-54-00-710-001 Operational Test of the Flap System
32-12-00-010-001 Open the Main Gear Doors for Access
32-12-00-410-001 Close the Main Gear Doors after Access
27-51-19-991-001 Fig. 401
3. Job Set-up
__________
Subtask 27-51-19-860-051
A. Aircraft Maintenance Configuration
(1)
Make sure that the main doors of the main gear are open (Ref. TASK 32-12-00-010-001).
(2)
Make sure that the access platform is in position at the opening of the main door of the main gear.
(3)
Make sure that the flaps are in the retracted position (Ref. TASK 27-50-00-866-009) because a new FPPU is delivered locked in its zero position.
Subtask 27-51-19-865-051
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
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PANEL DESIGNATION IDENT. LOCATION
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R 49VU FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1 6CV B07 121VU FLIGHT CONTROLS/FLP/CTL AND/MONG/SYS2 8CV Q21
4. Procedure
_________
(Ref. Fig. 401/TASK 27-51-19-991-001)
Subtask 27-51-19-860-052
A. Preparation for Installation WARNING : USE SOLVENTS/CLEANING AGENTS, SEALANTS AND OTHER SPECIAL
_______ MATERIALS ONLY WITH A GOOD SUPPLY OF AIR. OBEY THE MANUFACTURERS INSTRUCTIONS. PUT ON PROTECTIVE CLOTHING. DO NOT GET THEM IN YOUR MOUTH. DO NOT SMOKE. DO NOT BREATHE THE GAS. THESE MATERIALS ARE POISONOUS, FLAMMABLE AND SKIN IRRITANT. GET MEDICAL HELP IF YOUR SKIN OR EYES BECOME IRRITATED.
(1)
Clean the component interface and/or the adjacent area.
(2)
Do an inspection of the component interface and/or the adjacent area.
(3)
Remove the sealing compound from the flange of the replacement FPPU.
(4)
Clean the anodic contact areas on the FPPU and the gearbox.
(5)
Coat the areas with a mixture of SPECIAL MATERIALS (Material No. 05-002) and SPECIAL MATERIALS (Material No. 05-054) in the ratio of 58 to 42 by weight.
(6)
Apply SPECIAL MATERIALS (Material No. 05-002) to the threads of the screws (1).
Subtask 27-51-19-420-050 R B. Installation of the Feed Back Position Pick-Off Unit (9)
(1)
Make sure that all zero marks on the FPPU are aligned.
(2)
Remove the tie-wrap (3).
(3)
Install the FPPU carefully on the gearbox.
(4)
Install the screws (1) and the washers (2).
(5)
TORQUE the screws (1) to between 0.87 and 0.96 m.daN (76.99 and 84.95 lbf.in).
R R R (6) Do a bonding test between the main bonding point of the power control unit and the FPPU flange. The resistance must not be more than 20 milliohms.
R (7) Remove the blanking caps from the electrical connectors.
R (8) Make sure that the electrical connectors are clean and in the correct condition.
R (9) Connect the electrical connectors 27CV-A and 27CV-B to the FPPU.
Subtask 27-51-19-865-052
C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 6CV, 8CV.
Subtask 27-51-19-710-050
D. Do the operational test of the flap system (Ref. TASK 27-54-00-710-001).
5. Close-up________
Subtask 27-51-19-410-050
A. Close Access
(1) Remove the access platform(s).
(2) Make sure that the work area is clean and clear of tool(s) and other items.
(3) Close the main doors of the main gear (Ref. TASK 32-12-00-410-001).
COMPUTER - SLAT AND FLAP CONTROL (SFCC) (21CV,22CV) - REMOVAL/INSTALLATION
__________________________________________________________________________
TASK 27-51-34-000-001
Removal of the SFCC (21CV,22CV)
1. Reason for the Job
__________________
Self Explanatory
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