咨询大佬们一个问题关于b777断电24小时后上电为什么要拔掉氧气面罩cb

腊味煲蛇饭 · 发表于 2026-4-28 21:52:22

Supply Primary External Power to the Main 115V AC Buses要拔掉氧气面罩cb和货仓火警cb，请问是什么原理不拔是否会造成氧气面罩弹出

CAUC-CAN · 发表于 2026-5-4 17:37:57

Boeing has received several cases of uncommanded release of above items which associated with power-off exceeding 24 hours.No specific root cause has been determined by Boeing. but warning added in AMM to prevent uncommanded release.

人懒随缘看脸 · 发表于 5 天前

这些一句话的事一般都得上ssm图

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[B777] 咨询大佬们一个问题关于b777断电24小时后上电为什么要拔掉氧气面罩cb