JSC "Innovation Company "DIAGNOSTICS" JSC "TECHPRIBOR" Central Institute of Aviation Motors JSC "Mil Moscow Helicopter Plant"

  Flight accident

Transcribing flight data of SDK-8 system of the Mi-172 helicopter, which crashed in Nepal

By results of decoding of the information received from the onboard solid-state recorder (SDK-8 system) has been restored the situation of air crash of Mi-172 helicopter in Nepal on September, 23rd, 2006

The conclusions, made on the basis of the flight data received from the FDR, are:

The flash memory of solid-state recorder SDK-8 after a fire on an accident place

1. Collision of the helicopter with an obstacle occurred during the climb to an altitude of 4,000 meters. After the collision, the helicopter immediately on fire.

2. The onboard recorder SDK-8 of helicopter in flight was efficient and has registered the necessary information.

3. At the moment of collision of the helicopter with an obstacle of failures of the vital systems of the helicopter and its engines it has not been registered.

4. After collision of the helicopter with an obstacle the SDK-8 system continued work in a record mode still almost 5 minutes.

Despite long influence of the high temperatures, the necessary information has been kept.