RedactedNarrative: The operator stated:
  He and his friend launched the airboat at the dark island boat ramp.
  They traveled to Keaton Beach channel marker 5 where they awaited his wife and friends to meet to go fishing.
  They waited for about 15 to 20 minutes and assumed his wife already traveled to marker 1.
  While they waited several other boats where traveling through the channel and the airboat floated as the wakes moved under it.
  He then tried to get up on plane when his friend noticed there was water in the back of the airboat hull. 
  He thought the water was from back wash on the airboat.
  He then turned the bilge pump switch on and proceeded to marker 1. 
  While en route to marker 1 he noticed the bilge pump was not working and proceeded to turn and go to the nearest point of land located near dark island.
  Once he arrived close to land he noticed the airboat was struggling to power forward at which point he powered down off plane. 
  The water in the bottom of the airboat sloshed to the bow causing the airboat to take on more water and sink to the bottom of the seagrass floor. 
  A good samaritan stopped and assisted them.
  They called the operator’s wife arrived and they began hooking up the harness as I arrived on scene. 
  The operator stated it would cost about $3,500 dollars to make the air boat operational again.