W DOC AIRBUS | AMM A320F

Operational Test of the Vertical Speed and Heading Hold Modes

TASK 22-10-00-710-003-A
Operational Test of the Vertical Speed and Heading Hold Modes

WARNING: MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED BEFORE YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT. UNWANTED ELECTRICAL POWER CAN BE DANGEROUS.
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.
ZONE: 210
1. Reason for the Job
To do a check of a longitudinal mode and a lateral mode.
2. Job Set-up Information
 A. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
210
CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD
 B. Referenced Information
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 29-10-00-863-003-A
Pressurize the Blue Hydraulic System with a Hydraulic Ground Power-Cart
TASK 29-10-00-863-003-A-01
Pressurize the Blue Hydraulic System with the Blue Electric Pump
TASK 29-10-00-864-003-A
Depressurize the Blue Hydraulic System
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 31-60-00-860-001-A
EIS Start Procedure
TASK 31-60-00-860-002-A
EIS Stop Procedure
TASK 34-10-00-860-004-A
Inertial Reference (IR) Alignment-Procedure
TASK 34-10-00-860-004-A-01
Automatic Inertial Reference (IR) Alignment-Procedure
TASK 34-10-00-860-004-A-02
Inertial Reference (IR) Alignment-Procedure to do a Check of the Links between each Flight Management and Guidance Computer (FMGC) and the three Air Data/Inertial Reference Units (ADIRUs)
3. Job Set-up
Subtask 22-10-00-860-054-A
A. Aircraft Maintenance Configuration
   (1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
   (2) Make sure that the aircraft is in the ground condition with the engines shut down.
   (3) Align the ADIRS (two ADIRS are necessary for this test)
(Ref. AMM TASK 34-10-00-860-004).
   (4) On the overhead panel, on the FLT CTL panels (23VU and 24VU):
  • make sure that the ELAC 1 and 2, SEC 1, 2 and 3, FAC 1 and 2 pushbutton switches are pushed (the FAULT and OFF legends are off).
NOTE: One ELAC, one SEC and one FAC are necessary for this test.
   (5) Do the EIS start procedure
(Ref. AMM TASK 31-60-00-860-001).
   (6) On the center pedestal, on the ECAM control panel, set the F/CTL page.
   (7) Pressurize the aircraft hydraulic systems
(Ref. AMM TASK 29-23-00-863-001)
(Ref. AMM TASK 29-10-00-863-003).
Subtask 22-10-00-865-052-A
B. Make sure that this(these) circuit breaker(s) is(are) closed:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUAUTO FLT/FCU/19CA1B05
49VUAUTO FLT/FMGC/110CA1B02
** ON A/C NOT FOR ALL
49VUAUTO FLT/FCU/19CA1H11
49VUAUTO FLT/FMGC/110CA1H08
** ON A/C NOT FOR ALL
121VUAUTO FLT/RUDDER/ARTF/FEEL14CAN17
121VUAUTO FLT/STICK/LOCK13CAN16
** ON A/C ALL
121VUAUTO FLT/FCU/29CA2M21
121VUAUTO FLT/FMGC/210CA2M17
** ON A/C NOT FOR ALL
121VUAUTO FLT/RUDDER/ARTF/FEEL14CAN19
121VUAUTO FLT/STICK/LOCK13CAN18
4. Procedure
Subtask 22-10-00-710-053-B
A. Do this test:
ACTION
RESULT
1.Make sure that the two FDs are engaged.
NOTE: If they are not engaged, push the FD pushbutton switches on the FCU (glareshield 13VU)
On the upper section of the Captain's and First Officer's PFDs:
  • The white 1FD2 indications are in view
  • The cyan ALT indications are in view
  • The cyan NAV indications are in view. On the FCU:
  • The dashes are in view in the SPD, HDG and V/S windows
  • A value is shown in the ALT window
  • All the indicator lights are off, except LAT.
2.On the FCU:
  • Push the AP1 (AP2) pushbutton switch.
This pushbutton switch comes on.
On the PFDs:
  • The white AP1 (AP2) indication comes into view.
3.On the FCU:
  • Pull the V/S-FPA selector knob.
On the PFDs:
  • The green V/S indication with cyan value (+0) comes into view.
  • The cyan ALT indication goes out of view
  • The pitch FD bar is shown centered. On the FCU, in the V/S window:
  • The dashes go out of view and are replaced by the zero value.
  • Turn the V/S-FPA selector knob to UP.
On the FCU:
  • The vertical speed shown in the V/S window increases positively. On the PFDs:
  • The pitch FD bar moves up.
  • The cyan value increases. On the lower ECAM DU, on the F/CTL page:
  • The elevators move up (nose-up command).
  • Turn the V/S-FPA knob to DN, to cancel the vertical speed.
On the FCU:
  • The vertical speed shown goes back to the zero value. On the PDFs:
  • The pitch FD bar is shown centered.
  • The cyan value goes back to the value +0. On the lower ECAM DU, on the F/CTL page:
  • The elevators move back to zero.
  • Pull the HDG-TRK selector knob.
On the PFDs:
  • The green HDG indication comes into view
  • The cyan NAV indication goes out of view
  • The roll FD bar is shown centered.
  • cyan selected heading index comes into view in the center of the heading scale. On the FCU, in the HDG window:
  • The dashes go out of view and the aircraft heading is shown
  • The LAT indicator light goes off.
  • Turn the HDG-TRK selector knob to positively increase the heading value.
On the FCU:
  • The heading shown in the HDG window increases. On the PFDs:
  • The roll FD bar moves to the right. The selected heading index moves to the right (when the index is out of view, digits replace it on the right of the heading scale). On the lower ECAM DU, on the F/CTL page:
  • The right aileron and the right spoilers move up
  • The left aileron moves down
  • The rudder moves to right
  • The rudder trim moves to the right but after the rudder. On the center pedestal, on the panel 110VU:
  • A trim value is given on the rudder trim indicator.
  • Turn the heading selector knob to get back to the aircraft heading.
On the PFDs:
  • The roll FD bar moves to the center.
  • The selected heading index returns to the center of the heading scale. On the lower ECAM DU, on the F/CTL page:
  • The ailerons and spoilers move back to zero.
  • The rudder and the rudder trim stay turned to the right and are aligned. On the rudder trim indicator:
  • The trim value is still shown.
4.On the Captain's or First Officer's side stick controller:
  • Push the Captain's AP disconnect and priority pushbutton switch.
The AP1 (AP2) disengages.
The warnings related to AP disengagement occur momentarily.
5.On the center pedestal, on the panel 110VU:
  • Push the RUD TRIM/RESET pushbutton switch.
On the lower ECAM DU, on the F/CTL page:
  • The rudder and the rudder trim move back to zero. On the rudder trim indicator:
  • L or R 00.0° (plus or minus 0.3°) is shown.
6.On the FCU:
  • Push the HDG-V/S/TRK-FPA selection pushbutton switch.
On the FCU:
  • The TRK-FPA indication replaces the HDG-V/S indication. On the PFDs:
  • The roll and pitch FD bars are replaced by the Flight Path Director and Flight Path Vector symbols.
  • The green V/S indication with cyan value reverts to the green FPA indication with cyan value.
  • The green HDG indication reverts to the green TRACK indication.
5. Close-up
Subtask 22-10-00-860-055-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
   (1) Depressurize the aircraft hydraulic systems
(Ref. AMM TASK 29-23-00-864-001) (Ref. AMM TASK 29-10-00-864-003).
   (2) On the overhead panel, on the ADIRS CDU, set the OFF/NAV/ATT selector switches to OFF.
   (3) Do the EIS stop procedure (Ref. AMM TASK 31-60-00-860-002).
   (4) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
Subtask 22-10-00-860-055-B ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
   (1) Depressurize the aircraft hydraulic systems
(Ref. AMM TASK 29-23-00-864-001) (Ref. AMM TASK 29-10-00-864-003).
   (2) On the overhead panel, on the ADIRS MSU, set the OFF/NAV/ATT selector switches to OFF.
   (3) Do the EIS stop procedure (Ref. AMM TASK 31-60-00-860-002).
   (4) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
[Rev.10 from 2021] 2026.03.31 23:09:51 UTC
"Aviabrain" 2025