SEA83FU007

Factual narrative

THE ULTRALIGHT HAD PREVIOUSLY FLOWN TO TACOMA WITH 2 PHANTOM ULTRALIGHTS IN PREPARATION FOR THE AIRSHOW. DURING DESCENT THE 3 ACFT HAD REACHED SPEEDS OF 75-80 MPH. AFTER LANDING, ONE OF PHANTOM PLTS ASKED THE SUNBURST PLT IF HE KNEW HOW FAST HE WAS GOING AND HE ANSWERED '...NO,NOT REALLY...' THE SUNBURST WAS EQUIPPED WITH A GRADUATED PLASTIC TUBE WITH A MOVABLE FLOAT TO INDICATE AIRSPEED. THE TOP MARK IS '55.' DURING THE AIRSHOW WITNESSES OBSERVED THE ACFT STARTING A DESCENDING LEFT TURN, THEN SUDDENLY 'JERKED' TO THE RIGHT, PITCHING UP ABOUT 10 DEG. THE RIGHT WING WENT BACKWARDS, THENBOTH WINGS ROTATED UPWARDS. THE LEFT WING FRONT SPAR WAS FOUND PULLED OUTWARD FROM THE BOLT & ALUMINUM SPACER. THE RIGHTWING REAR SPAR WAS SEPARATED FROM THE BOLT & BRACKET. THE RIGHT WING FLYING CABLES SEPARATED AT THE RIGHT REAR CARRY THROUGH ATTACHMENT POINT. THE PLTS BLOOD ALCOHOL LEVEL WAS 0.05%. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12