From Mark Kausler's notes on the animator draft:

Eric: Mickey and Minnie skating - hear cries - Mickey goes to Duck's rescue
McManus: Falls - Duck approaches - Mickey in distance
Spencer: Duck on edge of ice - above falls
Eric: Mickey skates fast to rescue
Spencer: Duck on falls
Eric: Mickey to rescue
Spencer: Duck loses footing - Mickey in - Grab's Donald's sweater
Towsley: Duck in yarn - Yarn breaks - Duck spins out
Towsley: Duck skims across Mickey
Towsley: Log - Duck through it - Below Surface - Duck floats thru hole
Babbitt: Goof swats Duck