Dynon Avionics SkyView HDX Series, Maintenance Manual, Page: 63 / 128

SkyView HDX System General Maintenance Manual, Revision F Page | 63
7.3.5 No AoA Audio Alerts
Normally the AoA probe will produce audible
“beeps” as the aircraft approaches a stall. If no AoA
audio alerts are heard approaching a stall, perform the following checks:
1. Verify audio is heard for other SkyView HDX Display messages (see Section 7.2.3 ). If
audio is heard for other messages, then there may be a problem with the pneumatic tube
from the AoA probe to the ADAHRS module.
2. Check for blockage or disconnection of AoA probe tubing:
a. Remove AoA probe and make sure the pneumatic tube is securely attached (see
Section 8.19 ).
b. Access the ADAHRS (See section 8.5.1 , to gain access to ADAHRS module) to
ensure the AoA tube is securely attached.
3. Complete AoA Probe calibration (see Section 9.8 ).
If all steps pass, the ADAHRS module likely needs to be replaced. Contact Dynon technical
support. Always have a properly rated mechanic or qualified facility remove unit.