Elevator Damping Test Not Possible (Decoding)

TASK 27-30-00-810-851-A
Elevator Damping Test Not Possible (Decoding)

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
TSM TASK 27-30-00-810-848-A	Elevator Damping Test Not Possible
AMM 27-96-00-710-008	Operational Test of the Damping Measurement (Elevator)
AMM 27-96-00-740-001	BITE Test of the EFCS (Ground Scanning)
Decoding Table of the Elevator Damping Test Not Possible

3. Fault Confirmation
Subtask 27-30-00-710-054-A

A. Not Applicable

4. Fault Isolation
Subtask 27-30-00-810-099-A

A. If the ELEV TEST NOT POSSIBLE message and BITE code 03FF are shown on the MCDU :

do the trouble shooting procedure (Ref. TSM TASK 27-30-00-810-848).

Subtask 27-30-00-810-102-A

B. If the ELEV TEST NOT POSSIBLE message and BITE code other than 03FF are shown on the MCDU :
(1) Do the decoding procedure.

Decoding Table of the Elevator Damping Test Not Possible

NOTE: The decoding procedure will give you the cause of the damping test failure and will help you to identify a failure message during the next step (Ground Scanning).

(2) Do the BITE test of the EFCS (Ground Scanning) AMM 27-96-00-740-001.

Identify the failure message related to the cause you found during the decoding procedure, then
Do the associated trouble shooting procedure.

NOTE: As example, for the fault code 01FF by SEC 1, the state of R ELEV S1M AVAIL is 0 instead of 1. This signifies that SEC 1 MON (S1M) has detected a failure on the right elevator servocontrol (R ELEV). So it is necessary to search an elevator servo fault message detected by SEC 1 in the BITE test of the EFCS (Ground Scanning).

(3) Do the operational test of the damping measurement (elevator) AMM 27-96-00-710-008.

[Rev.8 from Aug 2018] 2026.04.04 04:39:12 UTC