Indonesia rescue workers are searching for the black box that was on board a Russian passenger jet that crashed in West Java last week.<br/> <br />The Sukhoi Superjet 100 was on a six-nation sales tour when it cashed during the Indonesian flight.<br/> <br />At least 45 people were on board.<br/> <br />Rescue workers believe the information in the flight-recorder could shed light on its crash, into a volcano.<br/> <br />A West Java military commander said the mission has proven difficult due to the rough terrain of the area.<br/> <br />Eighty Russian rescue workers and forensic experts have arrived in Indonesia to help in the recovery efforts.<br/> <br />Rescuers found some communication gear from the plane, but have not yet recovered the flight-recorder.<br/> <br />The crash deals a blow to Sukhoi's marketing plans for the Superjet 100. A local Indonesian airline has put its order for 12 of the jets on hold, pending the air crash investigation.<br/> <br />Sarah Sheffer, Reuters
