““You can then then swap out sonar system with imaging system, a camera system to go take pictures of the debris field so you can positively identify that it is aircraft wreckage or something else,” Captain Matthews said. Blue Fin did not discover any objects on its first mission, however, US Navy captain Mark Matthews said that the AUV will continue to measure the density of objects to see if anything is metallic, which could indicate plane wreckage. Australian search officials are concerned that a new AUV may be needed because Bluefin 21 cannot go beyond depths of 4.5km below sea level. Meanwhile, the Automated Under Water Vehicle (AUV) Blue Fin 21 is continuing to look for the wreckage in the depths of the Indian Ocean after its first data finding mission was aborted after six hours. Mr Mearns was previously awarded the Order of Australia in 2008 for helping find the wreckage of the historic ship HMAS Sydney and the wreckage of Air France flight 447 in the Atlantic Ocean. A crash expert is certain that the international search for the wreckage of doomed Malaysia Airlines flight MH370 will be solved and the black boxes will be found. “They have got four very, very good detections with the right spectrum of noise coming from them and it can’t be from anything else.” “While the government hasn’t announced that yet, if somebody asked me ‘technically do they have enough information to say that? My answer is unequivocally, yes,” Mr Mearns said. Once any human made objects are found, search command can reprogram Blue Fin 21 to gather high resolution images for further inspection. David Mearns, who is the director of Blue Water Recoveries believes the frequency of the ‘pings’ that Australia’s Ocean Shield boat detected can only be sonar from the MH370 black boxes, the Sydney Morning Herald reported.