WARNING : PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU
_______
START A TASK ON OR NEAR:
- THE FLIGHT CONTROLS
- THE FLIGHT CONTROL SURFACES
- THE LANDING GEAR AND THE RELATED DOORS
- COMPONENTS THAT MOVE.
WARNING : MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROL SURFACES ARE
_______
CLEAR BEFORE YOU PRESSURIZE/DEPRESSURIZE A HYDRAULIC SYSTEM.
WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING
_______
GEAR.
1. Possible Causes
_______________
- SFCC-1 (21CV)
- SFCC-2 (22CV)
- A/C wiring/interface between SFCC 1 (2) and the WTB.
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
ASM 246812S01 ASM 246813S01 ASM 278101S01 ASM 278108S01 AMM 27-51-34-000-001 Removal of the SFCC (21CV,22CV) AMM 27-51-34-400-001 Installation of the SFCC (21CV,22CV) AMM 27-81-00-740-002 Bite Test of the Slat and Flap Control Computers
(Slat System)
3. Fault Confirmation
__________________
A. Make sure that this(these) circuit breaker(s) is(are) closed:
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU FLIGHT CONTROLS/WTB/SLT/SYS2 11CV P19 122VU FLIGHT CONTROLS/WTB/SLT/SYS1 9CV S06
May 01/04R CES
B. SFCC System Bite WTB Power Test.
(1) Do a BITE test on the SFCC 1 (2) (Ref. AMM TASK 27-81-00-740-002). The fault data" WTB electrical power off" is displayed.
(2) Do the fault isolation.
4. Fault Isolation
_______________
A. Procedure
(1) At the circuit breakers.
(a) Examine the C/B for integrity.
(b) Do a check of the A/C HOT BUS 28VDC Supply. (Ref. ASM 246812S01) (Ref. ASM 246813S01)
(c) If the fault is found at steps 4.A.(1)(a) and/or (b), do the repair and do the test at step 3.B.(1).
(2) If the fault continues.
(a) Swap the SFCC 1 and SFCC 2, (Ref. AMM TASK 27-51-34-000-001) for (Ref. AMM TASK 27-51-34-400-001) do Para.2,3. and 4 only.
(b) Access the SLT ON GROUND FAULTS and do a check of the ground log.
(c) If the fault moves with SFCC 1(2).
(d) Return the SFCC 1 (2) to their initial locations.
(e) Replace the unserviceable SFCC-1 (21CV) (SFCC-2 (22CV)) Ref. Para.4.A.(2)(a).
(3) Do the BITE test of the SFCC 1 (2) Ref. Para.3.A.(1).
(4) If the fault continues, do a check of the A/C wiring/interface between SFCC 1 (2) and the WTB. (Ref. ASM 278101S01) (Ref. ASM 278108S01)
(5) If there is a wiring/interface fault, do the repair.
(6) Do the BITE test.Ref 3.A.(1).
5. Close-up
________
A. Remove the ground support and maintenance equipment, the special and standard tools and all other items.
B. Put the aircraft back to its initial configuration.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞27-81-00∞∞∞∞∞∞∞∞∞∞Page 249
May 01/04R CES
SLT LH WTB BLU Solenoid 35CV or Open or Short Circuit to SFCC 1. SLT LH WTB GRN Solenoid 35CV or Open or Short Circuit to SFCC 2.
WARNING : MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROL SURFACES ARE
_______ CLEAR BEFORE YOU PRESSURIZE/DEPRESSURIZE A HYDRAULIC SYSTEM.
WARNING : PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU
_______ START A TASK ON OR NEAR:
- THE FLIGHT CONTROLS
- THE FLIGHT CONTROL SURFACES
- THE LANDING GEAR AND THE RELATED DOORS
- COMPONENTS THAT MOVE.
WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING
_______ GEAR.
1. Possible Causes
_______________
- SFCC-1 (21CV)
- SFCC-2 (22CV)
- BRAKE-L WING TIP (35CV)
- A/C Wiring between SFCC 1 ARINC tray interface and the electrical
connector
- A/C wiring between SFCC 2 ARINC tray interface and the electrical
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