Definition of serious injury due to sharp edge formation inflicted on an occupant (passenger) following an emergency landing.

Standard:
Scope:

Define an objective criteria for serious injury inflicted on an occupant (passenger) following an emergency landing (CFR 25.561/25.562). The document herein is limited to evaluation of the CFR 25.785 (b) & (d), which encompasses the potential sharp edge formation caused by the test dummy’s head striking the seat and/or other structures (shroud, monitor, handset, glass from monitor, etc).

Rationale:

As of today, “serious injury” criteria has been determined by either an authority or delegated authority (approver). Therefore, the pass/fail criteria determined by each individual approver is subjective; similar test results may be considered acceptable by one approver, but may not be acceptable by another. Since there is no objective criteria, the approver will take their most conservative determination. “Serious injury” criteria is only considered when the passenger’s ability to egress is affected and when further injury is lethal. For example, a cut on a finger should not be considered a serious injury or a fail because it will not affect the passenger’s ability to egress.

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