The Nav source selector on the Captains instruments do not work properly. The HSI does switch to the NAV 2 Radio frequency but the needle movement is bugged so the autopilot cannot follow. The NAV 1 radio frequency has to be re-tuned as a result.
Also there is no source selector on the copilot’s side despite referencing it on the manual?
FREQUENCY OF ISSUE
Always
REPRODUCTION STEPS
Please list clear steps you took in order to help our test team reproduce the same issue:
Set 1st VOR frequency in NAV 1 radio and alternative 2nd VOR frequency in NAV 2 radio
Set the 1st course as needed, then have autopilot mode to track VOR/LOC
Then switch the NAV SOURCE selector to NO. 2 and change needle course as required, however this step is bugged as the needle does not deviate to the right/left correctly for the new set course.. therefore autopilot cannot track
SETTINGS
The “Auto slew HSI course to LOC and FMS/TRK” setting in the EFB is enabled
When the selector is set to the NO.2 position, you must use the copilot’s HSI “Course” knob to set the captain’s HSI course. When set to NO.2, the system should only switch to the number 2 NAV radio. Setting the HSI course should still be done with the captain’s HSI course knob.
Sorry I don’t quite understand what you mean here. The two sentences contradict.
If I have the source switch from No.1 to No. 2, then I must change the course knob on the co-pilot’s HSI to have the autopilot intercept the VOR radial?
When the switch is set to #2, the captain’s HSI setting is controlled from the co-pilots HSI knob. Go to the copilot’s HSI OBS knob to set the captain’s HSI needle. I found that completely by accident, but it works.
In the real airplane, the #2 switch only sources the navigation VHF radio, couple #1 or #2 to the captain’s HSI. The captain’s HSI OBS knob controls the HSI needle regardless of which nav radio is set in the source selector switch.
