W DOC AIRBUS | TSM A320F

Loss of the Pitch Signal on the CAPT Side Stick for the ELAC 1


TASK 27-93-00-810-803-A
Loss of the Pitch Signal on the CAPT Side Stick for the ELAC 1


1. Possible Causes
  • SSTU-PITCH CTL, CAPT [4CE3]
  • ELAC-1 [2CE1]
  • wiring from the ELAC 1 (2CE1) to the SSTU (4CE3)
2. Job Set-up Information
 A. Referenced Information
REFERENCE
DESIGNATION
TSM TASK 27-93-00-810-970-A
Loss of the Pitch Signal on the CAPT Side Stick for the ELAC 1 (New-Generation Side-Stick Unit)
ASM 279214
AMM 27-92-41-000-002
Removal of the Transducer Units
AMM 27-92-41-400-002
Installation of the Transducer Units
AMM 27-92-41-860-801
Identification of the Side Stick Installed on the Aircraft
AMM 27-93-34-000-001
Removal of the ELAC
AMM 27-93-34-400-001
Installation of the ELAC
AMM 27-96-00-710-020
Operational Test of the Side Stick Assembly (Activation for the BITE Test)
AMM 27-96-00-740-001
BITE Test of the EFCS (Ground Scanning)
3. Fault Confirmation
Subtask 27-93-00-860-090-A
A. Side Stick Identification
   (1) Do the identification of the side stick installed on the aircraft AMM 27-92-41-860-801:
     (a) If a new-generation side-stick unit is installed on the aircraft, refer to the trouble shooting procedure (Ref. TSM TASK 27-93-00-810-970).
     (b) If the side stick installed on the aircraft is not a new-generation side-stick unit, continue this procedure.
Subtask 27-93-00-700-054-A
B. Test
   (1) Do the operational test of the side stick assembly (activation for the BITE test) AMM 27-96-00-710-020.
   (2) Do the BITE test of the EFCS (Ground Scanning) AMM 27-96-00-740-001.
4. Fault Isolation
Subtask 27-93-00-810-052-B
A. If the BITE test gives the maintenance message:
ELAC1 OR INPUT OF CAPT PITCH CTL SSTU 4CE3
   (1) If the fault continues:
   (2) If the fault continues:
  • do a check and repair the wiring from the ELAC 1 (2CE1) to the SSTU (4CE3) ASM 279214.
Subtask 27-93-00-700-055-A
B. Do the operational test and the BITE test given in Para. 3.
[Rev.8 from Aug 2018] 2026.04.04 04:27:55 UTC