We've tried ourselves on a test flight on a 737/200.
and It was possible of course.
On the Mid 80's a well known Central American Airline
approaching the US over the Gulf of Mexico Had both cfm56 flamed out due to a water ingestion (boeing said it was a nacelle design problem)
They glided the 737-300 and they were lucky to find a grass field
close to the Leville VORTAC MSY area.
Landed power off....no injuries, and very proud crew.
I will try to find Any web sites.
The Capt. use to be A chief pilot for the airline I was flying for.