[IC27A] new noise

[sharon_speller]

I had a new mystery noise coming from the stern cowling that is connected to my 
blower hose. The noise happens when i am under sail, engine off. All batteries 
are off. If im at the dock nothing. it sounds like a motor whirling. the noise 
is coming from behind the engine. Near the transmission and prop..... I think.
Could it be the prop? never had it happen before today. 
thanks.