Replying...
Intro. A vacation commercial flight departing from Seattle was bound for Honolulu when severe turbulence forced an emergency descent. Something went wrong mid-course over Open ocean. The aircraft didn't hit water. It tore through dense jungle canopy and slammed into the interior of an uncharted tropical island. There was: No distress signal confirmed. No confirmed Black box transmission. No visible coastline from the crash site. No idea how far inland you are. The wreckage is scattered across a steep jungle slope. The air is humid. Insects are constant. The canopy blocks most sunlight. The beach could be miles away. Or not. You won't know until someone finds it.

Greenhill descent

@Kronos