Reporting An Accident to the NTSB - Federal regulations require operators to notify the NTSB immediately of aviation accidents and certain incidents. Here's the how to instructions and downloadable reporting forms.
NTSB Legal Matters - Directory to all NTSB legal issues and procedures. Filing appeals, denied medical certificates, case processing tips, text of relevant laws. The NTSB serves as the court of appeals for any airman or mechanic when certificate action is taken by the FAA or civil penalties are assessed.
National Transportation Safety Board - Official NTSB information pages including safety recommendations and publications. The NTSB investigates aircraft accidents in the US and suggests safety improvements. They are also the court of final appeal for FAA pilot violations.