W DOC AIRBUS | TSM A320F

Elevator Damping Test Not Possible

TASK 27-30-00-810-848-A
Elevator Damping Test Not Possible

WARNING: PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:
  • THE FLIGHT CONTROLS
  • THE FLIGHT CONTROL SURFACES
  • THE LANDING GEAR AND THE RELATED DOORS
  • COMPONENTS THAT MOVE.
MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.
WARNING: MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS ARE CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE.
1. Possible Causes
  • SERVO CTL-L ELEVATOR, OUTBD B [34CE3]
  • SERVO CTL-L ELEVATOR, INBD G [34CE1]
  • SERVO CTL-R ELEVATOR, OUTBD B [34CE4]
  • SERVO CTL-R ELEVATOR, INBD Y [34CE2]
2. Job Set-up Information
 A. Referenced Information
REFERENCE
DESIGNATION
TSM TASK 27-30-00-810-851-A
Elevator Damping Test Not Possible (Decoding)
AMM 27-34-51-000-001
Removal of the Elevator Servo Control
AMM 27-34-51-400-001
Installation of the Elevator Servo Control
AMM 27-96-00-710-008
Operational Test of the Damping Measurement (Elevator)
F Elevator Damping Test Sequences
3. Fault Confirmation
Subtask 27-30-00-710-050-A
A. Not Applicable
4. Fault Isolation
Subtask 27-30-00-810-095-A
A. If the TEST NOT POSSIBLE message is shown with the normal engagement code (03FF):
   (1) If the test stops during the first sequence (The SEC1 and SEC2 control the 2 servocontrols):
     (a) Do an elevator operational test as follows:
  • make sure that the Green, Blue and Yellow hydraulic systems are pressurized
  • make sure that the SEC1 is engaged (the ELAC1 is disengaged)
  • disengage the SEC2 (the ELAC2 is disengaged).
       1 Quickly move a side stick (CAPT or F/O) in full nose up then in full nose down position:
  • on the lower ECAM DU, the two elevator indexes move at the same time with the same travel speed.
       2 If the left elevator does not move or if the travel speed is less than the travel speed of the right elevator:
  • do the action in Para. (3)(a)1_
       3 If the right elevator does not move or if the travel speed is less than the travel speed of the left elevator:
  • do the action in Para. (3)(b)1_
     (b) Do an elevator operational test as follows:
  • make sure that the Green, Blue and Yellow hydraulic systems are pressurized
  • make sure that the SEC2 is engaged (the ELAC2 is disengaged)
  • disengage the SEC1 (the ELAC1 is disengaged).
       1 Quickly move a side stick (CAPT or F/O) in full nose up then in full nose down position:
  • on the lower ECAM DU, the two elevator indexes move at the same time with the same travel speed.
       2 If the left elevator does not move or if the travel speed is less than the travel speed of the right elevator:
  • do the action in Para. (2)(a)1_
       3 If the right elevator does not move or if the travel speed is less than the travel speed of the left elevator:
  • do the action in Para. (2)(b)1_
   (2) If the test stops during the second sequence (The SEC2 controls one servocontrol):
     (a) For the test of the left elevator:
       1 If the fault continues:
     (b) For the test of the right elevator:
       1 If the fault continues:
   (3) If the test stops during the third sequence (The SEC1 controls one servocontrol):
     (a) For the test of the left elevator:
       1 If the fault continues:
     (b) For the test of the right elevator:
       1 If the fault continues:
Subtask 27-30-00-810-100-A
B. If the TEST NOT POSSIBLE message is shown with an other code (different from 03FF):
Subtask 27-30-00-710-051-A
C. Do the operational test of the damping measurement (elevator) AMM 27-96-00-710-008.
[Rev.8 from Aug 2018] 2026.04.04 04:27:35 UTC
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