SPARTANSBURG, PA, USA
N115DS
GRUMMAN GA-7
AFTER RECEIVING A WEATHER BRIEFING FROM FSS THE PILOT DECIDED TO FLY INTO KNOWN ICING CONDITIONS WITH AN AIRCRAFT THAT WAS NEITHER CERTIFIED NOR EQUIPPED FOR FLIGHT INTO ICING CONDITIONS. THE AIRCRAFT WAS AT 6,100 FEET WHEN THE PILOT TOLD ATC THAT HE WAS PICKING UP ICE AND NEEDED A HIGHER ALTITUDE. HE WAS CLEARED TO 8,000 FEET. ACCORDING TO ATC RADAR DATA, THE AIRCRAFT REACHED 6,500 FEET, AND 12 SECONDS LATER IT WAS AT 3,500 FEET WHEN RADAR CONTACT WAS LOST. THE AIRCRAFT WAS SEEN IN A HIGH SPEED DIVE AT FULL POWER JUST PRIOR TO IMPACT WITH THE GROUND.
THE PILOTS DECISION TO DISREGARD THE WEATHER FORECAST AND ATTEMPT FLIGHT INTO KNOWN ICING CONDITIONS. AFTER THE WINGS STARTED TO ICE UP, THE PILOT INITIATED A CLIMB BUT COULD NOT MAINTAIN AIRSPEED AND INADVERTANTLY STALLED THE AIRCRAFT WHICH ENTERED AN UNCONTROLLED HIGH SPEED DESCENT TO THE GROUND.
Source: NTSB Aviation Accident Database
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