HELICOPTER ROTOR BLADE INJURY - A PERSISTENT SAFETY HAZARD IN THE UNITED-STATES-ARMY

Rotor blade injuries are an inherent hazard of helicopter operations. To determine the recent incidence of rotor blade injuries in the U.S. Army, a review of accident records (1972-91) was conducted. Crash-rela ted injuries were not included. During the study period, there were 24 blade strike injuries (12 involving the main rotor), 11 (46%) of whic h were fatal. Comparison with previous reports indicates a lower rotor blade injury rate in the last decade than in any previous period. The head was injured most frequently (65%), followed by the chest (17%) a nd abdomen (7%). Protective helmets helped to reduce injury in several instances. Flight crew comprised 49% of the victims, passengers 29%, ground crew 14%, and bystanders 8%. Helicopter crews must maintain sit uational awareness when around turning blades-professional training al one does not guarantee protection from rotor blade injury.