FAA must also be notified of any accident or incident. Call your
friendly local FSDO.
http://www.faa.gov/avr/afs/faa/8400/8400_vol7/7_001_02.pdf

The NTSB must decide whether it is incident or accident. It does not
sound like the plane is substantially damaged and there were no
injuries, so I would bet this will be considered an incident. NTSB will
be notified by the FAA.

But first, your partner should fill out a NASA form. Yesterday.
http://asrs.arc.nasa.gov/