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Lockable Gascolator Drain Valves on GA Aircraft

Following a number of incidents of power loss in GA aircraft caused by lockable gascolator fuel drain valves being inadvertently left latched open we are advising owners to check the gascolator drain valve before each flight and consider replacing lockable gascolator drain valves with non-lockable alternatives, which are often standard parts.

Safety Notice SN-2021/005 has more detail.

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