20000623040342A

(.4)The Learjet departed from an uncontrolled airport about 2 minutes before the accident on a on a VFR climb and was not talking to ATC. The Extra EA-300S departed VFR from a controlled airport and requested and received a frequency change from the control tower 2 minutes after departure. Review of radar data revealed that the Extra climbed to 2,500 feet on a heading of 346 degrees before descending to 2,400 at 1141:25. The Learjet was observed on radar in a right crosswind departure passing through 700 feet on a heading of 242 degrees at 1141:02. At 1141:16, the Learjet was at 1,400 feet heading 269. At 1141:30, the Extra is observed on radar at 2,400 feet, in a right turn heading 360 degrees. The Learjet is observed on radar at 1141:28 in a climbing left turn passing through 2,300 feet. The last radar return on both aircraft was at 1141:30. (-23) on June 23, 2000, at about 1141 eastern daylight time, a Learjet 55, N220JC, registered to universal jet aviation inc, operating as a CFR part 91 repositioning flight, and a Extra flugzeugbau gmbh, N300XS, registered to a private owner, operating as a 14 CFR 91 personal flight, experienced an in-flight collision about 2.5 nautical miles south west of Boca Raton airport (bct), Boca Raton, Florida. Both aircraft were destroyed, resulting in the deaths of the 3 persons aboard the Learjet and the pilot onboard the Extra. No injuries or deaths were reported on the ground. Visual meteorological conditions prevailed. An IFR flight plan had been filed for N220JC, but it had not been activated. No flight plan was filed for the N300XS. The Learjet departed Boca Raton airport FL, (bct) about 6 minutes before the accident and the Extra departed pompano beach airpark, FL, (pmp), about 4 minutes before the accident. Examination of the crash site revealed N220JC and N300XS collided about 2.5 nautical miles south of the Boca Raton airport in the vicinity of estancia west, a gated community located in Boca Raton FL. The crash debris line was on a heading of approx 240 degrees and was approx .33 miles long. The collision between the two aircraft resulted in an explosion causing the Extra to fragmentate with the largest airframe pieces bein the fuselage tubing and the top of the left wing. The Extra engine assembly was the first piece of wreckage located in the debris field. The Learjet fuselage had separated into 2 pieces at about fuselage station (fs) 392, due to the impact and resulting inflight explosion to include the lear's fuselage fuel tank. The nose, wing assemblies and fuselage up to fs 392 impacted as one piece on the east side of a condominium located in Boca grove plantation, an adjoining gated community adjacent to estancia west. The nose and cockpit impacted and penetrated the roof of a concrete roof of the condominium's auxiliary generator room. A post-crash fire consumed fs 204 through fs 392 of the fuselage. The left and right wing tanks had ruptured but were not consumed by fire. Review of radar data revealed N220JC was off the ground at bct at 1540:53. The radar showed the aircraft slowly accelerating in a climbing right turn from runway heading to approximately 270 degrees. N300XS departed pmp and was observed on radar at 1000 feet at 1538:25. The aircraft climbed and maintained approximately 2500 feet on a north/north westerly heading at a ground speed of approximately 170 knots. The last recorded radar data showed the two aircraft to be within 100 feet vertically and 3 tenths of a mile horizontally of each other. The recorded ground speeds for the last radar plot showed N220JC at 189 knots and N300XS at 173 knots.