The other thing is, 'internal compartment' , if it had been an external compartment it would have just run over the side.
Yes the shaft tunnel is perhaps the furthest from the hanger sprinklers.
Did somebody leave a valve open on the Bilge/ballast/ fire pump and overpressured the sprinklers?
Much the same way with the QE2, How did heavy oil get in the boiler sight glass?
Somebody piped it up wrong.
I assume the Navy Press Office passed the information on to the Beeb. So with much editing this is what you end up with.
The old chestnut,
Message outgoing " Send reinforcements , we are going to advance"
Message received via various departments:
" Send 3/4d we are going to a dance ".