Postcrash Fires
Suppliers of Fire-Retardant
Flight Suits
Unusual Vibrations
Practice Autorotations Cause
Training Accidents
Exceeding Operating Limits
Overspeeds During Liftoff
Flying Near Broadcast Towers
Photo Flights - Very High Risk
Vee-Belts Turning Rotor During Engine Start-Up
High Winds or Turbulence
Governor Can Mask Carb Ice
Loose Objects Can Be Fatal
Airplane Pilots High Risk When Flying Helicopters
Listen For Impending Bearing Failure
Surprise Throttle Chops Can Be Deadly
Night Flight Plus Bad Weather Can Be Deadly
Carburetor Ice
Low RPM
Rotor Stall Can Be Fatal
Walking Into Tail Rotor Can Be Fatal
Always Reduce Rate-of-Descent Before Reducing Airspeed
Deleted
Beware of
Demonstration or Initial Training Flights
Flying Low Over Water is Very Hazardous
Loss of Visibility Can Be Fatal
Never Exit Helicopter With Engine Running
Power Lines Are Deadly
Fuel Exhaustion Can Be Fatal
Superseded By SN-17, SN-27 and SN-28
Do Not Attach Items to the
Skids
Superseded By SN-24
Low-G Pushovers - Extremely Dangerous
Fatal Accidents Caused By Low RPM Rotor Stall
Many Accidents Involve Dynamic Rollover
Superceded or Deleted
Inadvertent Actuation of Mixture Control in Flight