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"On Apu" Panel state issues (Read 1444 times)
spence
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"On Apu" Panel state issues
Jul 25th, 2020 at 5:39am
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Hello,

When I switch to the "on APU" aircraft state, the apu switches off a few seconds after selecting this aircraft state. I then have to bring up the external power and air to power up the aircraft again. I am on the latest version and did not see this issue before.
  
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Re: "On Apu" Panel state issues
Reply #1 - Jul 25th, 2020 at 9:32am
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Anyone to confirm that issue pls?
  
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Markoz
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Re: "On Apu" Panel state issues
Reply #2 - Jul 25th, 2020 at 1:03pm
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Captain Sim wrote on Jul 25th, 2020 at 9:32am:
Anyone to confirm that issue pls?

When I first load the 767(v0.991) into P3Dv4, then select "On APU", it works for about 1 minute and 15 seconds, then the APU turns off.
If I make changes to the Payload and Fuel, then select "On APU", the APU turns off after about 1 second.

  

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jetOne
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Re: "On Apu" Panel state issues
Reply #3 - Jul 25th, 2020 at 1:07pm
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Also having this issue which did not exist previously.

Version .99 (no hotfix)
  
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Alex T
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Re: "On Apu" Panel state issues
Reply #4 - Jul 25th, 2020 at 2:52pm
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Yeah I have this issue evrey time, I just fix it by rotating the APU selector to START momentarily. It seems that in the save state that the APU shutdown timer is running.
  
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jasonboche
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Re: "On Apu" Panel state issues
Reply #5 - Jul 25th, 2020 at 3:03pm
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Captain Sim wrote on Jul 25th, 2020 at 9:32am:
Anyone to confirm that issue pls?


I discovered and filed this bug, including the cause, on July 10th.

https://www.captainsim.org/forum/csf.pl?num=1588034733/all



Good evening,

My flight simulator is Prepar3D Version: 4.5.14.34698
CS 767 II VERSION 0.99

Summary: New issue starting with version .99. APU does not stay running when loading a saved state in the MCDU which is supposed to have a running APU.

Detail:
1) If the APU is not currently running, and a saved state is loaded in the MCDU which instructs the APU to be running, APU will initially be running but then APU goes through shutdown sequence and will not start again until it finishes its shutdown sequence.

This impacts all previously saved custom states whereby the APU is supposed to be running.
This also impacts the basic saved state named ON APU.CFG which ships with the CS 767 II.

2) If the APU is currently running, and a saved state is loaded in the MCDU which instructs the APU to be running, APU will continue running.

The reason this seems to be happening is because 2 new panel state values seem to have been to build .99:

apu_shdwnSignal=0
apu_shdwnTimer=0, 0

If the 2 new panel state values above do not exist in a saved panel state, then the APU is enters a shutdown sequence.

If the 2 new panel state values above do exist in a saved panel state, then the APU is prevented from entering a shutdown sequence and therefore the APU remains running.

I'm submitting this as a bug because the ON APU.CFG basic panel state is technically broken as of build .99.

Thank you,
Jas
  
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jasonboche
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Re: "On Apu" Panel state issues
Reply #6 - Jun 26th, 2023 at 5:56pm
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Was this bug fixed? I noticed it's still happening in build 1004 and the workaround that I noted above no longer appears to work.

Thank you,
Jas
  
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jasonboche
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Re: "On Apu" Panel state issues
Reply #7 - Jun 26th, 2023 at 9:04pm
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jasonboche wrote on Jun 26th, 2023 at 5:56pm:
Was this bug fixed? I noticed it's still happening in build 1004 and the workaround that I noted above no longer appears to work.

Thank you,
Jas


I take that back... the workaround does still work (After re-installing I forgot to enable LOAD DEFAULT PANEL STATE in the MCDU which has the workaround embedded in it).
  
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