Access manhole

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8-4-125(

An opening, for example in a buoy body, to permit personnel to enter the interior for occasional inspections or repairs. It is closed by means of a firmly-secured watertight cover.


Note:

On vessels and on Lanbys, a large access manhole is called a deck hatch.




Please note that this is the term as it stands in the original IALAInternational Association of Marine Aids to Navigation and Lighthouse Authorities - AISM Dictionary edition (1970-1989)