COUNTY. WE'RE ALSO FOLLOWING DEVELOPING NEWS OUT OF THE NORTH BAY, WHERE THERE WAS A PLANE CRASH AT AN AIRPORT. THIS HAPPENED AT GNOSS FIELD IN NOVATO. THERE WAS FIRE THAT SPREAD FROM THE PLANE TO THE GRASS NEARBY, PUTTING A PLUME OF BLACK SMOKE INTO THE AIR. ABC SEVEN NEWS REPORTER ANSER HASSAN WAS AT THE SCENE. HE SPOKE TO WITNESSES. >> I DIDN'T HEAR ANYTHING. I SUDDENLY SAW THIS BIG BLACK, BILLOWING CLOUDS, BLACK, BLACK AND CARRIED THIS WAY AND REALIZED SOMETHING WAS WRONG. >> THE BLACK SMOKE. HEATHER THOMPSON IS DESCRIBING IS FROM A SMALL THREE SEATER PLANE THAT CRASHED INTO A HANGAR DURING TAKEOFF, KILLING THE PILOT. IT HAPPENED SATURDAY AFTERNOON AT NORTH FIELD AIRPORT IN NOVATO. >> FROM WHAT I HEAR RIGHT, THE PLANE SORT OF SHIMMIED AND WENT OFF THE RUNWAY TO THE LEFT AND INTO THIS HANGAR, AND ALL I COULD SEE WAS WHAT WAS LEFT WAS THE TAIL OF THE PLANE. >> ONE PERSON WHO WAS AT THE AIRPORT TELLS ABC SEVEN NEWS THAT THE WIND SOCKS, WHICH HELP PILOTS DETERMINE WHERE THE WIND IS COMING FROM, WERE BLOWING IN DIFFERENT DIRECTIONS. HE SAYS THAT MEANS IT WAS LIKELY GUSTY IN THE AREA AND THAT MAY HAVE IMPACTED THE TAKEOFF. HE ALSO SAYS THE PLANE LIKELY HAD A FULL TANK OF GAS, WHICH LED TO HOW BIG THE FIRE GOT. BUT WE COULD SEE THE ONE HANGAR. >> I BELIEVE IT'S ONLY ONE THAT WAS REALLY BURNING. >> THE NATIONAL TRANSPORTATION SAFETY BOARD CONFIRMED THE PILOT DIED IN THE CRASH. IN AN EMAIL TO ABC SEVEN NEWS, IT SAYS AN NTSB INVESTIGATOR WILL ARRIVE SUNDAY MORNING AND WILL BE FOCUSED ON THREE PRIMARY AREAS THE PILOT, THE AIRCRAFT AND THE OPERATING ENVIRONMENT. THAT INCLUDES EXAMINING AIRCRAFT MAINTENANCE RECORDS, THE WEATHER FORECAST, THE PILOT'S LICENSE AND A 72 HOUR BACKGROUND CHECK OF THE PILOT TO DETERMINE IF THERE WERE ANY ISSUES THAT COULD HAVE AFFECTED THE PILOTS ABILITY TO SAFELY OPERATE THE PLANE. A PRELIMINARY REPORT IS EXPECTED WITHIN 30 DAYS