Description

On 9 May 2012, an Sukhoi Superjet RRJ95 being operated by the aircraft manufacturer on a daylight demonstration flight out of Jakarta Halim on an Instrument Flight Rules (IFR) Flight Plan filed for flight at 10000 feet with an estimated flight time of 30 minutes asked for and was approved for descent to 6000 feet shortly after reaching 10000 feet and was found the following day to have impacted terrain near the summit of Mount Salak in Instrument Meteorological Conditions (IMC) at 6000 feet causing the destruction of the aircraft and the deaths of all 45 occupants.

Investigation

An Investigation was carried out by the NTSC aided by location, recovery and successful replay of both the two hour Cockpit Voice Recorder (CVR) and Flight Data Recorder (FDR).

It was noted that the accident flight was the second of two that day using a flight crew consisting of two pilots with a navigator, flight test engineer and engine manufacturer’s representative on board. The flight path of both flights is shown on the diagram below taken from the Investigation Report. The aircraft commander had been acting as PF for the accident flight and a representative of a potential customer had been occupying the flight deck observer seat. It was found that the charts carried on board the aircraft did not appear to include ones which would have contained information on the terrain in the area where the descent prior to impact was made.