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Accident
Last updated: 23 October 2017
Statuts:
Date:mardi 13 octobre 1992
Type/Sous-type:Silhouette image of generic A124 model; specific model in this crash may look slightly different
Antonov An-124-100
Compagnie:Antonov Design Bureau
Immatriculation: CCCP-82002
Numéro de série: 19530501003
Année de Fabrication: 1984
Moteurs: 4 Lotarev D-18T
Equipage:victimes: 8 / à bord: 9
Passagers:victimes: 0 / à bord: 0
Total:victimes: 8 / à bord: 9
Dégats de l'appareil: Détruit
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:1,5 km (0.9 milles) S of Kodra, Makarov District (   Ukraine)
Phase de vol: En cours de manoeuvre (MNV)
Nature:Test
Aéroport de départ:Kiev-Gostomel Airport (GML/UKKM), Ukraine
Aéroport de destination:Kiev-Gostomel Airport (GML/UKKM), Ukraine
Détails:
The third prototype of the Antonov An-124 cargo plane was destroyed when it crashed in a forest near Kodra, Ukraine. One of the nine crew members survived the accident.
The aircraft performed a certification flight out of Kiev's Gostomel Airport. The mission for the flight was to carry out tests to determine the characteristics of controllability at maximum speed. In the test flight zone at an altitude of 5800 m (19000 feet), the crew proceeded to accelerate from 530 km/h to 650 km/h with the steering wheel completely deflected to the right. At a speed of 614 km/h, the radome disintegrated. This caused the nose to break open and separate, leading to a sudden loss of airspeed along with strong vibration and noise in the cabin. Debris was ingested in engine no. 3. The engine shut down automatically and, as a consequence, the 3rd hydraulic system failed. This, in turn, led to numerous failures of aircraft systems, including the flight management system. The crew did not get valid data about speed, altitude and angle of attack while trying to manage the emergency.
When increasing power to engines no. 2 and 4, there was a surging of engine no. 4, the air intake of which also contained fragments of the nose fairing.
The crew increased power on engine no. 1 to 58%, which led to a significant lateral slip. Control became very difficult with the aircraft oscillating. The captain instructed the engineers to leave the aircraft with parachutes. One engineer who was in the back cabin, left the aircraft through the emergency hatch. He survived with serious injuries.
The flight continued back towards Gostomel for an emergency landing. An Antonov An-22 began flying in a parallel course, helping the crew to determine their airspeed. Because the speed was much higher than the landing speed, the captain ordered to select flaps. However, due to asymmetrical release of flaps, descent rate increased. The aircraft collided with trees up to 30-40 m high, fell into a forest 43 km west of Gostomel. All the eight remaining crew members and engineers were killed.

Unconfirmed reports suggest the initial failure of the nose radome was caused by a bird strike (with the bird weighing about 1.8 kg).

Sources:
» airdisasters.ru
» Fatalities and Destroyed Civil Aircraft Due To Bird Strikes 2002-2004 / John Thorpe (International Bird Strike Committee IBSC27/WP II-3)
» Soviet Transports


Photos

photo of Antonov An-124-100 CCCP-82002
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Les informations ci-dessus ne représentent pas l'opinion de la 'Flight Safety Foundation' ou de 'Aviation Safety Network' sur les causes de l'accident. Ces informations prélimimaires sont basées sur les faits tel qu'ils sont connus à ce jour.
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