Test

The aircraft was engaged upon a flight test for the renewal of its Certificate of Airworthiness (CofA). The sole occupants were the pilot and an observer. Following an ILS approach to runway 23 at Stansted Airport an overshoot (go-around) was initiated and at about 200 feet the starboard engine cut out. The commander attempted unsuccessfully to restart the engine by use of the starter motor. The aircraft lost speed and height and crashed just outside the airport. The observer was killed and the pilot injured.

The pilot, sole on board, was performing a local test flight at Mena Airport. During initial climb, one of the engine failed. He elected to return but misjudged his altitude and clearance when the airplane struck trees and crashed near the airport. The aircraft was destroyed and the pilot was injured.

The aircraft was engaged in a local test flight at Greybull Airport and was carrying one passenger and three crew members. After takeoff, while climbing, the crew encountered technical problems with the right engine. The captain elected to return and initiated a turn when the aircraft lost height and crashed. All three crew members were killed while the passenger was seriously injured.

Built by the Voronezh Aircraft Factory, the airplane came out of the plant last April 27. Test flights were conducted on April 27, May 12, 16 and 18. On May 23, the crew completed a fifth test flight from 1111LT and 1307LT without any incidents. At 1730LT, the crew departed Ramenskoye Airport near Moscow to proceed to a series of various tests on engines, generators, to evaluate the airtightness of the cabin as well as the stability and the controllability of the aircraft at an altitude of 12,000 meters. When all these checks were completed, the crew reduced his altitude to 3,000 meters then carried out the test of the auxiliary power unit (APU). For the next two minutes, engines n°3 and 4 were shut down in accordance with the test program. About a minute after the shutdown of the engine n°4, a burning smell was felt in the cabin and smoke spread through the air conditioning system, followed by a black and thick smoke. The captain decided to return to his departure point but quickly realized that this would be impossible. He reduced his altitude and attempted an emergency landing in a pasture. At a speed of 380 km/h, at an estimated height of four to six meters, the airplane struck and cut between 70 and 100 trees before falling to the ground. It then slid for about 620 meters before coming to rest in flames, some 46 kilometers southeast of Ramenskoye runway 30 threshold. Six crew members were rescued while two engineers were killed.

The crew departed Van Nuys for a local test flight. En route, a fire erupted in the left wheel well and spread to the left wing that detached in flight. Out of control, the airplane entered a dive and crashed in flames. All three occupants were killed.

The crew (two pilots and two technicians) departed d’Uherské Hradiště-Kunovice Airport for a local test flight on this third L-410 prototype. While cruising at a relative low altitude, the pilot-in-command lost control of the airplane that dove into the ground and crashed in a field located in Nedakonice, few km from the airfield. The aircraft was destroyed and all four occupants were killed.

In the morning, the crew completed two flights in the area. Due to engine problems, a technician was asked to make some engine test run. While the aircraft was parked on the ground, a technician proceeded to an engine test but forgot to install chocks on wheels. After the engine was started, power was added. The pilot who was standing by the door fell out of the plane that started to roll. After takeoff, the airplane climbed to a height of 12 meters, made a sharp turn to the left, stalled and crashed upside down. The technician, sole on board, was killed. It was determined that when the airplane started to roll quite roughly, the technician fell down from the pilot seat. Then, after liftoff, the cargo shifted to the rear of the cabin, causing the aircraft to stall.

The crew was conducting a test flight out from Seshcha AFB, Bryansk oblast. While cruising at an altitude of 6,000 metres, the crew initiated a turn with max rudder deflection when the airplane adopted a high angle of attack and control was lost. The airplane entered a dive, partially disintegrated in the air and eventually crashed in a field located about 20 km from the airbase. All seven crew members were killed.

At approximately 1103 hours Eastern Standard Time (EST) on 6 August 1976 the pilot of Nomad N24 aircraft Serial Number 10 encountered control difficulty at a height of about 950 feet immediately after taking off at Avalon Aerodrome. The aircraft entered a descending turn to the left through about 175 degrees and struck the ground. The pilot was killed; the occupant of the other pilot seat, an observer, sustained injuries which resulted in his death two days later; and the third occupant, the flight test engineer, was seriously injured.

The twin engine airplane was engaged in a local post maintenance test flight. During the takeoff roll, the airplane went out of control, veered off runway and came to rest in flames. A technician was killed while four other occupants were seriously injured. The aircraft was destroyed.