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Survival Factors

Survival Factors. Was this Accident Survivable?. Airplane loading in the survivable range Survivable space in airplane cabin Parachutists seated aft of intrusion Two parachutists survived Survival dependent on Restraint use and design Protection from intrusion

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Survival Factors

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  1. Survival Factors

  2. Was this Accident Survivable? • Airplane loading in the survivable range • Survivable space in airplane cabin • Parachutists seated aft of intrusion • Two parachutists survived • Survival dependent on • Restraint use and design • Protection from intrusion • Protection from objects and other parachutists

  3. Parachutists’ Restraints • Airplane modified to carry up to 22 parachutists • Single-point restraints attached to sidewall seat track • Designed to pass through parachute harness and anchor to seat track

  4. Parachutists’ Restraints

  5. Sample Parachutist Restraint

  6. Evidence of Restraint Use

  7. Onboard Helmet Camera Videos • Aft-facing seating position • Four parachutists seated on foam block benches • Two pairs of tandem jumpers • Three parachutists seated on floor

  8. NOSE Seating Chart

  9. Safety Issues: Restraints • Previous recommendations (closed) • FAA research on parachutists’ restraints • FAA research • Single-point restraints ineffective • Symmetrical, dual-point restraints function better than single-point restraints • Floor mounted • Accident airplane could not be configured with a similar symmetrical dual-point restraint • Future testing could identify best dual-point restraint method

  10. Summary • Single-point restraint does not provide adequate restraint • Fewer fatalities and injuries may result with more effective restraints • Testing could identify best dual-point restraint

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