N330MT

On April 30, 2016, about 1624 Pacific daylight time, an EXTRA Flugzeugproduktions-und Vertriebs, EA-300/L airplane, N330MT, was destroyed when it impacted terrain about 10 miles south of Henderson Executive Airport (HND), Las Vegas, Nevada. The airline transport pilot and passenger were fatally injured. The airplane was registered to and operated by Vegas Extreme Adventures LLC, doing business as Sky Combat Ace (SCA), under the provisions of 14 Code of Federal Regulations (CFR) Part 91. Visual meteorological conditions prevailed, and no flight plan was filed for the local instructional flight, which departed HND about 1603.

The accident airplane departed and rendezvoused with two other company airplanes to conduct a simulated air-to-air combat mission. The mission profile included two airplanes at a time maneuvering against each other, while the third airplane observed from a higher altitude and safe distance. Following completion of the air combat mission, all three airplanes began the return flight to HND. During the return, the airplanes flew a planned low-level bombing run simulation. After landing at HND, the pilots of the first two airplanes realized that the third airplane had not returned. The operator's pilots subsequently notified HND tower and the company. The company initiated an aerial search, and the wreckage was located shortly thereafter.

The accident airplane was equipped with both a GoPro Hero and a Garmin VIRB onboard camera system. The GoPro Hero camera was mounted in the front seat instrument panel and faced backwards, in order to record the front seat occupant. The Garmin VIRB camera was forward facing and mounted on the right side of the rear seat at the instrument panel. Both cameras were recovered from the accident site and sent to the NTSB's Vehicle Recorder Laboratory for download. The GoPro Hero card contained two files that captured the accident flight. The Garmin VIRB card captured the accident flight and cockpit communications. A complete report on the recorded flight data is available in the public docket.

The recorded data began on the airport ramp area and revealed weather conditions that included scattered clouds and a high overcast layer. The accident pilot and passenger discussed the recent weather as rain droplets collected on the airplane's surfaces. Both the pilot and passenger were wearing parachutes. The passenger was seated in the front seat and the pilot was seated in the rear seat. Another company airplane (Ace 4) checked the formation in on the radio and called for taxi clearance, for the three airplanes. The accident airplane (Ace 1) began taxing behind Ace 4 (the lead airplane): the other airplane in the formation was Ace 2. The timing of the recorded data referenced below, is expressed in video elapsed time, which is the minutes and seconds from the beginning of the recordings.

At 08:55 elapsed time, the accident airplane took off from runway 35L. After reaching about 200 ft agl, as indicated by the altimeter in the forward panel, the pilot initiated a hard left turn. The airplane climbed to its cruise altitude of 3,500 ft msl.

At 11:40, the three airplanes flew south towards the practice area and accomplished a simulated gun check. The accident pilot led the passenger through some shallow bank maneuvers, where they simulated setting up to shoot another airplane. The altimeter indicated 3,900 ft msl. At 15:00, the airplanes continued to fly south, and the accident airplane was instructed to set up to watch the Ace 4 and Ace 2 maneuver for a simulated "dogfight." The altitudes given to maintain for the simulated dogfight were between 5,000 ft and 7,000 ft msl. The accident airplane maneuvered in slight banking turns as the other two airplanes maneuvered for a simulated dogfight.

At 18:30, the first dogfight between the other airplanes had ended. The accident airplane was then instructed to set up for the next simulated dogfight. At 19:38, the accident airplane maneuvered for their first simulated dogfight. The passenger appeared to be manipulating the controls. After about 2 minutes, the dogfight was terminated and another one shortly thereafter.

At 23:15, the pilot asked the passenger how he was doing? The passenger responded that he was "doing pretty rough." The pilot asked the passenger to let him know if he started to feel airsick and the passenger confirmed that he was ready for one more simulated air-to-air engagement.

At 23:35, the accident airplane began a third simulated engagement and achieved a successful "kill" at 24:38. At that time, the pilot, indicated that he was going to stop the simulated dogfighting with the other airplanes and set up to watch them. The accident airplane climbed to 7,000 ft msl, and the passenger expressed that he was "not feeling well." The accident pilot responded that he "would not be doing any crazy turning or anything like that."

At 25:35, Ace 4, radioed that he was calling off the next simulated dogfight and the flight of three would return to HND. Ace 4 informed the other airplanes that during the return their position would be "fighting wing" with the accident airplane as the last airplane in trail. The pilot of another airplane in the formation radioed that they would finish up flying a low-level bomb run. The accident pilot informed the passenger, that he would keep it smooth for him, then radioed the formation that he was going to "keep it pretty PG back here." The other pilots in the formation acknowledged and replied: "sounds good, you guys tame it down to however you like it."

As the accident airplane descended towards the desert floor, the passenger readied an air sickness bag. The accident pilot restated that he was going to keep the airplane nice and smooth and instructed his passenger to take care of himself. Shortly, thereafter, the accident passenger became actively airsick and adjusted his headset microphone away from his face. The accident pilot transmitted over the radio that "One's code three."

At 28:51, the accident airplane was flying low level over the desert floor. The front seat altimeter indicated 2,750 ft msl and the indicated airspeed 185 knots. The passenger continued to be actively airsick. At 28:56, the passenger began to tie off his airsickness bag. Rain was seen beading up on the accident airplane's windscreen and the sky condition was overcast with a high ceiling, similar to the weather conditions observed during the simulated dogfights.

At 29:26, the accident airplane began climbing as it approached a ridgeline. Despite the rain accumulating on the windscreen, the forward visibility appeared to be unobstructed and the ridgeline was not obscured by cloud cover. At 29:37, the accident airplane was in a shallow climb and the accident pilot transmitted "you guys are leaving some pretty sweet vapor trails." At 29:46, the shallow pitch increased slightly, and the rain continued to bead on the airplane's canopy. The rain did not obstruct the forward view and the ridgeline was still clearly visible. The airplane's airspeed indicator read about 175 knots and the altimeter indicated 3,150 ft msl. The accident pilot then stated, "I'm going to take it nice and easy here." The airplane continued to approach the ridgeline in a shallow climb and an indicated airspeed just over 170 knots. The forward facing, Garmin VIRB camera stopped recording as the accident airplane was just approaching the ridgeline of the dry lake bed about 15 seconds before impact.

The GoPro Hero camera recorded the accident airplane perform 3 check turns before crossing the ridgeline and one after. The airplane crossed the first ridgeline and leveled off briefly and then began a shallow wings-level descent. There was some rain beading on the canopy; however, the visibility around the airplane was not degraded. The airplane then rolled into a slight right turn as it continued to descend towards the valley floor. Seconds later, the passenger was seen yelling: however, his microphone was not near his mouth. Almost simultaneously, at 30:18, the airplane impacted a small hill that rose from the valley floor. At the time of impact, the airplane was in a slight left bank and shallow climb.

The accident pilot did not indicate any anomalies before impact and the airplane was in stable flight with no attempted maneuver to avoid terrain.

Video from Ace 2 was also reviewed. Ace 2 was flying as the number two position in the formation, in front of the accident airplane. Ace 2 was maneuvering at a low attitude on the desert floor near the Jean dry lakebed and appeared to be flying about the same altitude above the ground as the accident airplane. Rain impacted Ace 2's windscreen as it maneuvered around a ridge adjacent to the dry lakebed. The rain did not appear to significantly degrade visibility and Ace 2 remained in VFR conditions. When compared to the accident airplane's video, Ace 2 encountered heavier rain. The flight path where the accident airplane was observed, was west of their position and the weather conditions near the accident airplane appeared to be better.

Ace 2 cleared the ridgeline and performed slight clearing turns as it descended back towards the valley floor. Once it reached level flight just above the valley floor, the accident airplane came into view behind and could be seen descending towards the valley floor. Once the accident airplane crossed above the first ridgeline, it was difficult to see, because it was no longer silhouetted against the overcast skies. A small hill comprised of rocks came into view behind and to the left of Ace 2, where the accident airplane was flying. Moments later, a white plume was observed on top of the hill. During the low-level, Ace 2 performed 8 clearing turns during the low-level flight before the accident. Following the accident, Ace 2 continued flying normally and the pilot and passenger seemed to be unaware of the accident airplane's impact with terrain, sin...