The Register-Star reports that authorities “have tentatively identified the plane that crashed into the Hudson River near Germantown yesterday as a Grumman G-44A, an old amphibious military reconnaissance craft, that left a private air field in Copake at about 4 p.m. Thursday.” (Earlier reports had suggested that the plane took off from Richmor Aviation in Ghent.)
Police are not releasing the assumed pilot’s name, but it is not difficult to ascertain what private airfields exist at that location. This website and others list a “Copake Lake Seaplane Base” and “B Flat Farm Airport” close by each other in the town, each operated by Michael B. Braunstein.
The reference to a seaplane would appear likely to correspond to the “amphibious” craft specified in the article above. Braunstein has two Craryville mailing addresses, one on Golf Course Road, the other on Country Club Road.