Description of the issue: This issue begin after the SU16 Update. After flying the approach with auto throttle active I pull power after passing through 50’ AGL. As soon as I do this the audio annunciation begins to shout: “auto-throttle”, “auto-throttle”, “auto-throttle”, “auto-throttle” continuously on roll-out.
Disconnecting the auto throttle stops this behavior until I shut down the engines, whereupon it begins to shout “auto-throttle”, “auto-throttle”, “auto-throttle” again. This continues through the entire shut-down sequence and does not stop until the batteries are turned off.
How often does this occur for you: Every time I fly the Longitude since SU16.
REPRODUCTION STEPS
Please list clear steps you took in order to help our test team reproduce the same issue:
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Activate the Longitude Auto Throttle system at takeoff or during flight.
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Pull power after passing through 50’ AGL on the approach (standard procedure).
YOUR SETTINGS
What peripherals are you using, if relevant: Thrustmaster T.16000M with TWCS, Razer Viper Ultimate mouse
[PC Only] Are you using Developer Mode or have you made any changes to it? No
[PC, MSFS 2020 Only] Are you using DX11 or DX12? DX12
[PC Only] What GPU (Graphics Card) do you use? nVidia GeForce RTX 2060 Super
[PC Only] What other relevant PC specs can you share? Intel(R) Core™ i9-14900KF (3.20 GHz), 32.0 GB RAM, 3 SSDs with 4.09 TB storage, Win 11 Pro, Version: 24H2, Build: 26100.6584
I also reported this issue in AVSIM - I wasn’t the only one experiencing this issue.
Usually this is a sign one of your controllers is sending spurious commands/signals to the sim. If it stops when you disconnect all your controllers, there’s your suspect.
This doesn’t sound like the correct procedure, and is probably causing an automatic autothrottle disconnect, which will sound this aural. Pressing the AT DISC button on the throttle will cancel the aural.
Correct procedure is to use the AT DISC button to disengage the AT. Per the official POH:
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The checklist I was using called for pulling the throttle (which indeed automatically stopped AT control), then called for disconnecting the AT after departing the runway, though the audio warning didn’t function prior to the recent update. Here’s what happened today…
Today in the Longitude using the auto throttle, I once again experienced the “auto throttle” audio warning when I pulled power for touch-down.
Before the recent updates, there was no announce on this and, following procedures, I disconnected the AT after departing the runway. This always took two presses on the AT release, and the AT indicator would then disappear from the PFD.
After the recent updates I pressed the disconnect once to get rid of the audio warning, forgetting that it used to take two presses. Later, when the engines were shut down, the warning announcement would start again and would not shut off until turning off the batteries.
Today, recalling that this used to take two presses (though I don’t know if that is correct in actuality) I once more pressed it during roll-out to shut it up. Then, once off the runway, I noticed that the AT was still illuminated on the PFD and pressed the release again - the AT disappeared from the PFD. After shutting down the engines all was quiet.
I don’t know if this procedure/response is accurate to the RW, but I can testify that this approach does silence the warning.
It is not proper procedure to just yank the power manually with AT still active. This is why you’re getting the aural, as it is causing an automatic AT disconnect. Pressing the AT DISC button once silences the current warning but does not change the state of the AT. Because AT is still on the target will become idle power upon landing and the AT servos will reconnect once they reach the physical throttle location (which now is also idle or thereabouts).
A new warning is issued when the engines are shut off, as the AT servos (which are now reconnected) detect they can no longer control the engines.
Correct procedure is to either a) fly in with AT on, and it will retard the throttles for you, or b) press AT DISC once to disconnect the AT and press it again to confirm the disconnect; then you can reduce the throttle to idle.
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