Full Report:

On October 19, 2009, about 1515 eastern daylight time, a McDonnell Douglas 369E helicopter, N502SL, registered to South Carolina Law Enforcement Division, was landed hard at the Fairfield County Airport (FDW), Winnsboro, South Carolina. Visual meteorological conditions prevailed at the time and no flight plan was filed for the 14 Code of Federal Regulations (CFR) Part 91 instructional flight from FDW Airport. The helicopter was substantially damaged and the certified flight instructor (CFI) and pilot-rated student were not injured. The flight originated from FDW about 5 minutes before the accident. The CFI stated that they were conducting training maneuvers at FDW and briefed the procedures to perform in the event of an anti-torque failure while in a hover. They initiated a hover and prepared to perform a simulation of stuck right anti-torque pedal. He stated they performed the procedure and landed the helicopter which then became airborne again and started yawing to the right very rapidly. He resumed the control of the helicopter and rolled the throttle to idle which slowed the yawing motion. The helicopter landed hard and rolled onto its left side. The student who is rotorcraft rated stated that they had initially departed from the South Carolina Law Enforcement Division (SLED) headquarters and flew to FDW where they performed 2 hovering autorotations. They then hover taxied to an area where they planned to perform stuck pedal procedures while in a hover. He relinquished the controls to the CFI who first briefed him on the proper recovery procedures. The CFI initiated the procedure and he began the corrective action procedures with the CFI following through on the flight controls. The helicopter landed, then began an uncommanded right yaw and became airborne. The CFI took the controls and the student confirmed the CFIs account that the helicopter landed hard and rolled onto its left side.