Loss of WINDSHEAR displays (PFD, ECAM) and aural warning

TASK 22-66-00-810-888-A
Loss of WINDSHEAR displays (PFD, ECAM) and aural warning

1. Possible Causes

FAC1,2
DMC 1,2
FWC 1,2

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 22-60-00-710-004	Operational Test of the Windshear Function
AMM 22-91-00-710-001	Ground Scanning of the AFS
AMM 31-50-00-710-001	Ground Scanning of the Central Warning System
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 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) 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) AMM 31-60-00-740-004.
(b) do the ground scanning of the Central Warning system ( FWC 1,2) 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.

[Rev.8 from Aug 2018] 2026.04.04 04:25:23 UTC