DOC AIRBUS | AMM A320FCheck of the synchronization between pitch trim handwheel and stabilizer
TASK 27-40-00-040-001-A
Check of the synchronization between pitch trim handwheel and stabilizer
MMEL 27-07-05A
PITCH TRIM POSITION INDICATION ON THE F/CTL SD PAGE (FAA ONLY)
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Work Zones and Access Panels
C. Referenced Information
3. Job Set-up
Subtask 27-40-00-860-050-A
Subtask 27-40-00-710-050-A
Subtask 27-40-00-942-050-A
[Rev.10 from 2021]
2026.03.31 23:50:38 UTC
Check of the synchronization between pitch trim handwheel and stabilizer
WARNING:
MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING GEAR. THIS WILL PREVENT UNWANTED MOVEMENT OF THE LANDING GEAR, AND THUS POSSIBLE INJURY TO PERSONS AND DAMAGE TO THE AIRCRAFT AND/OR EQUIPMENT.
WARNING:
MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS SURFACES ARE CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.
WARNING:
PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:
1. Reason for the Job- THE FLIGHT CONTROLS
- THE FLIGHT CONTROL SURFACES
- THE LANDING GEAR AND THE RELATED DOORS
- COMPONENTS THAT MOVE.
MMEL 27-07-05A
PITCH TRIM POSITION INDICATION ON THE F/CTL SD PAGE (FAA ONLY)
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 210 | CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD |
| 310 | FUSLG TAIL SECTION AFT OF AFT PRESS BHD |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 24-41-00-861-002-A | Energize the Aircraft Electrical Circuits from the External Power |
| TASK 24-41-00-861-002-A-01 | Energize the Aircraft Electrical Circuits from the APU |
| TASK 24-41-00-861-002-A-02 | Energize the Aircraft Electrical Circuits from Engine 1(2) |
| TASK 24-41-00-862-002-A | De-energize the Aircraft Electrical Circuits Supplied from the External Power |
| TASK 24-41-00-862-002-A-01 | De-energize the Aircraft Electrical Circuits Supplied from the APU |
| TASK 24-41-00-862-002-A-02 | De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2) |
| TASK 29-23-00-863-001-A | Pressurize the Green Hydraulic System from the Yellow Hydraulic System through the PTU with the Electric Pump |
| TASK 29-23-00-864-001-A | Depressurize the Green and Yellow Hydraulic Systems after Operation of the PTU |
| TASK 29-24-00-863-001-A | Pressurize the Yellow Hydraulic System with the Electric Pump |
| TASK 29-24-00-864-001-A | Depressurize the Yellow Hydraulic System |
| TASK 31-60-00-860-001-A | EIS Start Procedure |
| TASK 31-60-00-860-002-A | EIS Stop Procedure |
Subtask 27-40-00-860-050-A
A. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
(2) On the FLT CTL panel 23VU:
(5) On the center pedestal, on the ECAM control panel, push the F/CTL pushbutton switch. (On the lower ECAM display unit, the F/CTL page comes into view).
(6) Pressurize the Green and the Yellow hydraulic systems (Ref. AMM TASK 29-23-00-863-001) (Ref. AMM TASK 29-24-00-863-001).
Subtask 27-40-00-941-050-A (1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
(2) On the FLT CTL panel 23VU:
- make sure that the FLT CTL/ELAC 1 and FLT CTL/SEC 1 pushbutton switches are pushed (On these pushbutton switches, the OFF and FAULT legends are off).
- make sure that the FLT CTL/ELAC 2 and FLT CTL/SEC 2 pushbutton switches are pushed (On these pushbutton switches, the OFF and FAULT legends are off).
(5) On the center pedestal, on the ECAM control panel, push the F/CTL pushbutton switch. (On the lower ECAM display unit, the F/CTL page comes into view).
(6) Pressurize the Green and the Yellow hydraulic systems (Ref. AMM TASK 29-23-00-863-001) (Ref. AMM TASK 29-24-00-863-001).
B. Get Access
(1) Put the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position at the zone 310 in front of the THS position marks.
Subtask 27-40-00-865-050-A (1) Put the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position at the zone 310 in front of the THS position marks.
C. Make sure that this(these) circuit breaker(s) is(are) closed:
4. Procedure| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C ALL | |||
| 121VU | FLIGHT CONTROLS/ELAC2/NORM/SPLY | 15CE2 | R20 |
Subtask 27-40-00-710-050-A
A. Check of the synchronization between pitch trim handwheel and stabilizer.
5. Close-up| ACTION | RESULT |
|---|---|
| 1.On the center pedestal, slowly move one of the pitch-trim control wheels to the 4 deg. DN stop. |
|
| 2.Slowly move one of the pitch-trim control wheels to the 13.5 deg UP stop. |
|
| 3.Move the pitch-trim control wheel to the 0 position. |
|
Subtask 27-40-00-942-050-A
A. Put the aircraft back to its initial configuration.
(1) Depressurize the Green and Yellow hydraulic systems (Ref. AMM TASK 29-23-00-864-001) and (Ref. AMM TASK 29-24-00-864-001).
(2) Do the EIS stop procedure (Ref. AMM TASK 31-60-00-860-002).
(3) Make an entry in the log-book.
(4) Make sure that the work area is clean and clear of tools and other items.
(5) Remove the access platform(s).
(6) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
(1) Depressurize the Green and Yellow hydraulic systems (Ref. AMM TASK 29-23-00-864-001) and (Ref. AMM TASK 29-24-00-864-001).
(2) Do the EIS stop procedure (Ref. AMM TASK 31-60-00-860-002).
(3) Make an entry in the log-book.
(4) Make sure that the work area is clean and clear of tools and other items.
(5) Remove the access platform(s).
(6) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).