W DOC AIRBUS | MMEL OPS PROC

Autothrust Instinctive Disconnect

22-30-02AAutothrust Instinctive Disconnect
Applicable to: -
The purpose of the procedure is to check the A/THR disconnection via the remaining Instinctive Disconnect pb and via the A/THR pb on the FCU.
- After IRS alignment
Note:
Disregard alerts during the test. Use the EMER CANCEL pb on the ECAM control panel as necessary.
Aircraft configuration for the check via the FMS 1:
  • ENG/FADEC GND PWR 1 and 2ON
  • Both thrust leversMCT
  • FDOff
  • AUTO FLT/FMGC/2 (121 VU M17) C/BPull
  • A/THROn
Check that green SPEED and white A/THR indications appear on the PFD.
Check that A/THR pb light bars are ON.
Check of the A/THR disconnection via the remaining Instinctive Disconnect pb:
  • A/THR instinctive disconnect pb (non affected autothrust)Push
Check that the A/THR pb light bars are OFF.
Check that green SPEED and white A/THR indications are no more displayed on the PFD.
  • A/THROn
Check that the A/THR pb light bars are ON.
Check that green SPEED and white A/THR indications are displayed on the PFD.
Check of the A/THR disconnection via the A/THR pb on the FCU:
  • A/THR pb (on the FCU)Off
Check that the A/THR pb light bars are OFF.
Check that green SPEED and white A/THR indications are no more displayed on the PFD.
  • A/THROn
Aircraft configuration for the check via the FMS 2:
  • AUTO FLT/FMGC/2 (121VU M17) C/BPush
  • AUTO FLT/FMGC/1 (49VU B02) C/BPull
Wait 2 min.
Check of the A/THR disconnection via the remaining Instinctive Disconnect pb:
  • A/THR instinctive disconnect pb (non affected autothrust)Push
Check that the A/THR pb light bars are OFF.
Check that green SPEED and white A/THR indications are no more displayed on the PFD.
  • A/THROn
Check that the A/THR pb light bars are ON.
Check that green SPEED and white A/THR indications are displayed on the PFD.
Check of the A/THR disconnection via the A/THR pb on the FCU:
  • A/THR pb (on the FCU)Off
Check that the A/THR pb light bars are OFF.
Check that green SPEED and white A/THR indications are no more displayed on the PFD.
  • A/THROn
Restore normal aircraft configuration:
  • A/THROff
  • AUTO FLT/FMGC/1 (49VU B02) C/BPush
  • ENG/FADEC GND PWR 1 and 2Off
  • Both thrust leversIDLE
  • RCL pb (on the ECAM control panel)Push
Wait 2 min before using the MCDU and the FD.
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