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APU fuel purging vent push button

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APU fuel purging vent push button

Old 11th Sep 2021, 13:42
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APU fuel purging vent push button

Hi ..
I tried to find any hint / usage for that switch located at the aft bulkhead for apu venting fuel feed lines ?
are there any mechanic used it !

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Old 12th Sep 2021, 07:28
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It's possible that it is used to run the fuel pump in the event of changing an APU or fuel lines to purge air or preservation fluids. I've not worked on a 320 for many years and don't have the manuals but I think it's along those lines.
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Old 12th Sep 2021, 11:59
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Old 12th Sep 2021, 22:16
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Many thanks 🙏
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