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1998 Nall Report
2010-03-18

1998 Nall Report
  • VFR flight into IFR conditions is the leading source of fatalities. Judgment failures are the cause.
  • Event-decision; event-decision sequence leads to accidents. Solution: Break chain.
  • Scud running is dangerous because of past successes. 80% of scud accidents have fatalities.
  • Most accidents occur in four summer months.
  • Accident potential is determined by perceived importance, length, time and weather.
  • Personal flying is over 40% of flying with nearly 70% of accidents.
  • Instruction is 20% of flying with 6% of accidents. Make every flight instructional for safety's sake.
  • Takeoff and climb are most dangerous during instruction. Go-arounds were #2 area.
  • Takeoff and landing times have highest accident rate but few fatalities.
  • Midairs occur during VFR, near an airport and at low altitudes.
  • Two planes a week were crashing because fuel was not getting to the engine.
  • No one was killed off-airport by an airplane.
  • Nearly half of IFR approach accidents occur at night
  • The hourly rate of IFR accidents is lower than the VFR rate but the fatality rate is three times higher.

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