DOC AIRBUS | TSM A320FFailure of the F/O Pitch Control SSTU
TASK 27-93-00-810-812-A
Failure of the F/O Pitch Control SSTU
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 27-93-00-860-099-A
Subtask 27-93-00-810-061-A
[Rev.8 from Aug 2018]
2026.04.04 04:27:56 UTC
Failure of the F/O Pitch Control SSTU
1. Possible Causes
control rods, bellcranks and input levers of the transducer unit - SSTU-PITCH CTL, F/O [4CE4]
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| TSM TASK 27-93-00-810-979-A | Failure of the F/O Pitch Control (New-Generation Side-Stick Unit) |
| AMM 27-92-41-000-001 | Removal of the Side Stick Assembly |
| AMM 27-92-41-000-002 | Removal of the Transducer Units |
| AMM 27-92-41-400-001 | Installation of the Side Stick Assembly |
| 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 27-96-00-710-020 | 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) |
Subtask 27-93-00-860-099-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 27-93-00-810-979).
(b) If the side stick installed on the aircraft is not a new-generation side-stick unit, continue this procedure.
Subtask 27-93-00-700-072-A (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 27-93-00-810-979).
(b) If the side stick installed on the aircraft is not a new-generation side-stick unit, continue this procedure.
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(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.
Subtask 27-93-00-810-061-A
A. If the BITE test gives the maintenance message:
F/O PITCH CTL SSTU 4CE4
control rods, bellcranks and input levers of the transducer unit and take the corrective actions if necessary.
(2) If no mechanical problems:
Subtask 27-93-00-700-073-A F/O PITCH CTL SSTU 4CE4
- remove the F/O side stick assembly AMM 27-92-41-000-001.
(2) If no mechanical problems:
- replace the SSTU-PITCH CTL, F/O [4CE4] , AMM 27-92-41-000-002 and AMM 27-92-41-400-002.
B. Do the operational test and the BITE test given in Para. 3.