Loss of WINDSHEAR displays (PFD, ECAM) and aural warning A320
1.Possible Causes:
-FAC1,2
-DMC 1,2
-FWC 1,2
2. Job Set-up Information
A. Referenced Information
| REFERENCE | DESIGNATION |
| Ref. AMM 22-60-00-710-004 | Operational Test of the Windshear Function |
| Ref. AMM 22-91-00-710-001 | Ground Scanning of the AFS |
| Ref. AMM 31-50-00-710-001 | Ground Scanning of the Central Warning System |
| Ref. AMM 31-60-00-740-004 | EIS System Test |
3.Fault Confirmation
SUBTASK 22-66-00-710-213-A
A.Test
-Do the windshear test procedure Ref. AMM 22-60-00-710-004.
4.Fault Isolation
SUBTASK 22-66-00-810-165-A
A. If the test not OK with:
. WINDSHEAR not present on PFD and no aural warning
. or/and WINDSHEAR DET FAULT/WINDSHEAR DET not present on ECAM.
-do the ground scanning of the AFS ( FAC1,2) Ref. AMM 22-91-00-710-001.
(1) If there is one or several CFDS messages
— do the trouble shooting procedure related to the maintenance message.
(2) If there is no message:
(a) do the EIS system test (DMC1 for Capt PFD/EWD, DMC2 for the f/O PFD/SD) ( DMC 1,2) Ref. AMM 31-60-00-740-004.
(b) do the ground scanning of the Central Warning system ( FWC 1,2) Ref. AMM 31-50-00-710-001. Refer to the above Para. 4.A.(1).
SUBTASK 22-66-00-810-167-A
B. If the test not OK with:
. WINDSHEAR not present on PFD but aural warning present:
- Refer to Para. 4.A.(2)(a) (DMC1 & 2).
. WINDSHEAR present on PFD but no aural warning:
- Refer to Para. 4.A.(2)(b).
SUBTASK 22-66-00-710-214-A
C. Do the test given in Para. 3.
