TEMPO Interactive, Jakarta:The cause of Sukhoi Superjet 100's crash is still shrouded in mystery. However, the informatin revealed in the main report of Tempo Magazine Edition May 14, 2012 shows that before the plane slammed the slopes of Mount Salak, Sukhoi had circled the mountain once. The fact is seen from the plane's route analyzed by the rescue team several hours after the plane was reported missing. From Halim Perdanakusuma, the plane was heading south towards Pelabuhan Ratu, Sukabumi. According to Mulya Lubis, Deputy Senior General Manager of Soekarno-Hatta's Air Traffic Control (ATC), the Sukhoi's pilot requested to descend from 10.000 feet to 6.000 feet when the plane was above the area of Atang Sanjaya airbase, Bogor. "We agreed to his request because the plane was in the safe area to do so,” Mulya Budi, Deputi Senior General Manager of Soekarno-Hatta's ATC. In the same area, the pilot also requested to do an orbit (turning right). Tempo's main report titled "Before Penetrating Kumulonimbus Clouds", also shows the map analyzed by the rescue team. It is assumed from the map that the plane flew from Atang Sanjaya airbase to south east, later between Mount Salak and Mount Gede. Then it turned right and circled the Mount Salak then turned right again towards Jakarta. After the first round, for some reason, the Sukhoi circled the mountain again. Witnesses on the ground in Tenjoyala, Bogor, saw the plane was flying low. “It was the first time above our village that a plane flew so low,” said a local. Another witness in Cidahu, Sukabumi, said to have seen the plane flying low while toying with its wings. The plane then headed towards the mountain and disappeared into the clouds. Later it was reported that the plane had disappeared from the radar. The Soekarno-Hatta ATC put Sukhoi on 'incerfa' status, a condition where a plane cannot be contacted but accident is not suspected yet. The last contact was received when the plane was at coordinate points 6.43.08 South Latitude and 106.43.15 East Longitude at 6.200 feet (1.890 meter). Sunaryo, a consultant with PT Trimarga Rekatama, Sukhoi's partner company in Indonesia, ascertained that the pilot has checked the map and route contour prior to the trip. Yablonstev also calculated the height of Mount Salak and possibility of bad weather. The 45 ton plane is designed to perform well in bad weathers. BAGJA HIDAYAT | PRAMONO | AYU CIPTA | ANGGA SUKMA | RINA WIDIASTUTI |ANWAR SISWADI