Test

The pilot and two mechanics were on a maintenance test flight. As the aircraft was on a straight-in approach to runway 11 from the west, the pilot was advised of traffic ahead and told to slow his speed as much as possible. The pilot acknowledged. About 15 seconds later, the controller told the pilot (of N63XL) to make a 360° turn to the left for spacing. Shortly hereafter, witnesses observed the aircraft enter a steep bank (turn), then go into a steep spiraling, nose down, descent and crash. No preimpact mechanical malfunction or failure of the aircraft or engines was found. All three occupants were killed.

One pilot and one engineer took off from Bogotá-El Dorado Airport on a post maintenance check flight. After takeoff, while completing a left turn, the pilot lost control of the airplane that crashed near residential area in Bogotá. Fortunately, both occupants were rescued and no one on ground was injured.

Shortly after liftoff from Toulouse-Blagnac, while in initial climb, the crew simulated an engine failure when the aircraft banked left and crashed on the left of the runway. All three occupants were injured and the aircraft was destroyed.

The airplane had undergone extensive maintenance which included work on the control column. The upper half of the control column was replaced with a throw-over yoke and the aileron system was rerigged. The pilot-in-command picked up the airplane after it was tied down outside for three months. According to a witness, the airplane lifted off the water and started a left bank which increased until the airplane struck the ground. Post accident examination revealed the control cables at the base of the control column operated in reverse of the description in the maintenance manual. Complete control continuity could not be concluded because of the extensive post impact fire which destroyed the overhead bellcrank, pulley, and interconnect system. The pilot, sole on board, was killed.

The pilot reported to ground personnel at Fort Lauderdale that he was experiencing an avionics problem and the passenger entry door was sprung the day before when it was slammed; however, the pilot elected to depart. The aircraft wreckage was located on June 19 in the Everglades near Coral Springs, Florida. The aircraft impacted in a nose low attitude. Wreckage was scattered over an area 211 feet long by 55 feet wide. Investigation revealed no preimpact mechanical malfunctions/failures. The pilot, sole on board, was killed.

The crew was completing a local test flight in Kayseri-Erkilet when the aircraft crashed in unknown circumstances. All four occupants were injured and the aircraft was destroyed.

The aircraft suffered an incident at Chita Airport last April 18 when the nose gear collapsed on landing. Following repairs, the crew (three pilots and two engineers) was engaged in a local test flight out from Khanty-Mansiysk Airport. While cruising at an altitude of 6,000 meters, the ailerons were deployed to an angle of 8,5° then the aircraft turned to the right. Eight seconds later, it went out of control, overturned and entered a dive. With a rate of descent of 100 meters per second, the aircraft reached the speed of 620 km/h. With a positive acceleration of 5,25 g the left wing separated and struck the base of the tail that was torn off. The aircraft continued its uncontrolled descent until it crashed in an open field located near the Ob River, about 19 km northwest of the Khanty-Mansiysk Airport. The aircraft was destroyed and all five crew members were killed. The wreckage was found a day later.

After being stores for almost a year, the seaplane was engaged in a local test flight in the region of Kahului. Upon landing on sea, it collided with reef and came to rest. There were no casualties but the aircraft was damaged beyond repair.

The four engine aircraft departed Kirtland AFB on a test flight. While cruising at low altitude, the aircraft encountered turbulences and suffered a wing failure. It crashed in a hilly terrain located some 15,5 miles north of Magdalena. All 11 crew members were killed.

The flight was planned to check the onboard survey equipment. After departing Jandakot the aircraft operated to the south of the airfield for about 80 minutes before the pilot advised that he would be extending his operation to the east over the Darling Ranges. The aircraft was then sighted, by several witnesses, over the foothills heading in an easterly direction. These witnesses reported that the engines were not operating normally. A short time later, the aircraft was observed to pass over the dam wall at an altitude of about 25 feet and head down a valley in a northerly direction before disappearing from sight. An inspection of the wreckage indicated that the aircraft had collided with two 30 metre high trees, in a nose high attitude at a low forward airspeed, before falling to the ground below the trees. At impact neither engine was delivering power. The fuel system, which was found to be relatively intact, contained only nine litres of fuel.