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Thread: APU fuel purging vent push button
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Old 12th September 2021 | 06:28
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ampclamp
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From: Skating away on the thin ice of a new day.
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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