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Poll Question: How does your APU generator work? (Ground, engines OFF)

No problems    
  18 (32.7%)
No power in 5-10 minutes    
  37 (67.3%)




Total votes: 55
« Created by: Captain Sim on: Apr 30th, 2012 at 6:02pm »

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25 737 locks up (Read 92241 times)
AlexArt
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Re: 737 locks up
Reply #15 - Apr 25th, 2012 at 3:50pm
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Problems with electrical are. I previously wrote, but I will write again:
"If you do not start the engines, then after 5-6 minutes power supply is lost and can not be restored without reload aircraft. At the same time there is ground power, working APU, batteries are not discharged"
http://www.captainsim.org/yabb2/YaBB.pl?num=1331427647/60
All that remains in force.
It may seem that the power have because the bulbs are lit, backlit panels work. But we can not start the engines. And before (step II - 0.x) disappearing dome light. But now (1.0) it does not work at all and it is not so evident.
That is, impossible to perform on such a flight plan:
- Connect the power supply (EP or APU)
- boarding
- preflight procedures and load data in PDCS
- pushback
- Start the engine
and so on...
We must immediately start the engines, and then it will be impossible.
  
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CoolP
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Re: 737 locks up
Reply #16 - Apr 25th, 2012 at 4:01pm
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You mean you loose the power even if the APU Gen is on, or the external power?  Shocked Does that battery trick help, from the 727? I didn't run into that problem so far, but I'm running the FSUIPC battery tweak.
FSX models a way too weak battery for all planes, maybe we're seeing this FSX flaw in action. FSUIPC can help or the mentioned tweak from the 727.

Here's the 727 tweak. http://www.captainsim.org/yabb2/YaBB.pl?num=1315183931/1#1

Here's what FSX thinks is a plane's battery. http://www.public-domain-photos.com/free-cliparts-1-big/electronics/battery/batt...
  
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Captain Sim
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Re: 737 locks up
Reply #17 - Apr 25th, 2012 at 4:12pm
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AlexArt wrote on Apr 25th, 2012 at 3:50pm:
"If you do not start the engines, then after 5-6 minutes power supply is lost and can not be restored without reload aircraft.

It's because you should NOT use the battery alone, you MUST connect GPU or APU generator as soon as possible.

Quote:
At the same time there is ground power, working APU, batteries are not discharged"

Exactly. Normal procedure.

So where is the bug?
  


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AlexArt
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Re: 737 locks up
Reply #18 - Apr 25th, 2012 at 4:25pm
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CoolP wrote on Apr 25th, 2012 at 4:01pm:
You mean you loose the power even if the APU Gen is on, or the external power?  

Yes.
But not entirely disappear. Lamps are lit and indicators are working. Works outside lighting. But the starter power is not fed, and ceases to work the vclight (until reload the aircraft).
Here are the overhead. I'm doing something wrong?
  
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AlexArt
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Re: 737 locks up
Reply #19 - Apr 25th, 2012 at 4:28pm
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Captain Sim wrote on Apr 25th, 2012 at 4:12pm:
AlexArt wrote on Apr 25th, 2012 at 3:50pm:
"If you do not start the engines, then after 5-6 minutes power supply is lost and can not be restored without reload aircraft.

It's because you should NOT use the battery alone, you MUST connect GPU or APU generator as soon as possible.

Quote:
At the same time there is ground power, working APU, batteries are not discharged"

Exactly. Normal procedure.

So where is the bug?



The generator APU is naturally connected. Not everyone in the village of fools.  Undecided
  
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Captain Sim
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Re: 737 locks up
Reply #20 - Apr 25th, 2012 at 4:33pm
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AlexArt wrote on Apr 25th, 2012 at 4:28pm:
Captain Sim wrote on Apr 25th, 2012 at 4:12pm:
So where is the bug?


The generator APU is naturally connected  Undecided


But you've just said: "At the same time there is ground power, working APU, batteries are not discharged"
So with GPU or APU ON everything is alright?

But now you've got the power outage WITH the APU generator ON? How comes?
  


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AlexArt
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Re: 737 locks up
Reply #21 - Apr 25th, 2012 at 4:35pm
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Yes. This can be seen in the screenshot (Reply #18). It has lost power starters and dome light.
Switching power supply from the APU and GP yields nothing. Only a restart.
  
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Captain Sim
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Re: 737 locks up
Reply #22 - Apr 25th, 2012 at 4:43pm
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AlexArt wrote on Apr 25th, 2012 at 4:35pm:
Switching power supply from the APU and GP yields nothing.


WHEN do you connect the APU or GPU power? Too late if the battely is already dead.
  


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AlexArt
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Re: 737 locks up
Reply #23 - Apr 25th, 2012 at 4:53pm
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No, once. Here seems to be a consequence of the same problem.
http://www.captainsim.org/yabb2/YaBB.pl?num=1335135522
For example - Reply #2, #10

It seems that the power of the individual systems (example a starter) always comes from the battery and not diverted to other sources, except for the generators of engine.
It is high time to recognize that the problem is. Not the first time talking about it
  
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Markoz
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Re: 737 locks up
Reply #24 - Apr 25th, 2012 at 5:41pm
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AlexArt wrote on Apr 25th, 2012 at 3:50pm:
"If you do not start the engines, then after 5-6 minutes power supply is lost and can not be restored without reload aircraft. At the same time there is ground power, working APU, batteries are not discharged"

I was able to sit in the cockpit for more than 2 hours using ONLY the Battery. I did NOT turn the APU ON, I did NOT open the Simicons Panel and select EP to provide External Power.

This is how my OH Panel looked:



I even turned the ADF IDENT switch ON (circled on the 2D Radio Panel) to help try to drain power. After more than 2 hours, I got tired of waiting for the power to drain, so I went for a flight.

I have not been able to make it happen again, no matter how hard I try, since I first reported it.

Mark
  
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PC: i7 10700K @3.8/5.1GHz | 64GB DDR4 3200 | 12GB RTX 4070 Super | 32" LCD Monitor | 1TB SSD & 2x2TB SSD | Win 11 Pro - FSX/FSX-SE/P3D3/P3D4/P3D5/P3D6/MSFS2020
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Captain Sim
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Re: 737 locks up
Reply #25 - Apr 25th, 2012 at 6:54pm
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AlexArt wrote on Apr 25th, 2012 at 4:53pm:
No, once. Here seems to be a consequence of the same problem.
http://www.captainsim.org/yabb2/YaBB.pl?num=1335135522
For example - Reply #2, #10


We are talking about the 1.0 only. No the 0.X flashbacks please.

Quote:
It seems that the power of the individual systems (example a starter) always comes from the battery and not diverted to other sources, except for the generators of engine.


So your point is the GPU and APU gens do not provide any power?
Well it's possible, but we need at least 10 confirmation of that to start digging any further.
Anyone elese?
  


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Captain Sim
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Re: 737 locks up
Reply #26 - Apr 25th, 2012 at 6:55pm
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Markoz wrote on Apr 25th, 2012 at 5:41pm:
I have not been able to make it happen again, no matter how hard I try, since I first reported it.


Well, Mark is out  Smiley
It's just 3 of you now...
  


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Chigley
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Re: 737 locks up
Reply #27 - Apr 25th, 2012 at 7:33pm
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I've twice had a power black out after running with battery and ground power only, AC and DC switches to Batt and Grd Pwr. I've then switched to looking at info from the windows drop down menu ie payload and fuel settings or checking arrival destination height values, returned to FSX only to find that the power has blacked out. Grd pwr indications were out, AC and DC selector switches had returned to Stby Pwr and the Battery switch had turned Off with the guard open.
  

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Captain Sim
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Re: 737 locks up
Reply #28 - Apr 25th, 2012 at 7:49pm
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Chigley wrote on Apr 25th, 2012 at 7:33pm:
I've twice had a power black out after running with battery and ground power only, AC and DC switches to Batt and Grd Pwr. I've then switched to looking at info from the windows drop down menu ie payload and fuel settings or checking arrival destination height values, returned to FSX only to find that the power has blacked out. Grd pwr indications were out, AC and DC selector switches had returned to Stby Pwr and the Battery switch had turned Off with the guard open.


In the quote I've highlighted the real reason of the blockout: fsx menu use = paused flight sometimes causes the sys.gau glitch.
Anyone to confirm this?
  


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raykhughes
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Re: 737 locks up
Reply #29 - Apr 25th, 2012 at 7:54pm
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Yes, this has happened to me also.
732 cold and dark
Turned on Battery switch
Turned on simicon and enabled external power, flicked the external power switch, turned on the power generators when the lights came up. And proceded to fiddle with configuration for a flight plan
after a few minutes noticed I had lost all power yet the ground  power light was still on.
Reset the power generator switch - but it makes no difference.
No response.
Tried the trick of reloading the C172 also, no joy.
  
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