00:00 Inside the command centre, coordinating the international search effort for the Titan
00:03 sub, missing now for three days in a vast area of ocean.
00:07 But for the first time potential for hope that this vessel the size of a small truck
00:11 could be found, underwater noises picked up on the sonar system.
00:15 It's not clear where or what it is, but notable enough for the US Coast Guard to send this
00:20 update.
00:21 Canadian P-3 aircraft detected underwater noises in the search area.
00:26 As a result, remotely operated vehicles were relocated to explore the origin.
00:31 Those searches have yielded negative results, but the search continues.
00:36 Two US media outlets claim to have seen government documents describing banging sounds every
00:41 30 minutes in a repetitive manner, so far unconfirmed.
00:45 What we know is that if they're alive, there's just over a day to find them before oxygen
00:49 supplies run out.
00:51 The oceanographer Jules Jaffe helped develop the original imaging system to see the Titanic
00:55 in the 80s.
00:56 He says the danger is immense, but adds the outcome can still be positive.
01:01 I'm hoping it's an electrical failure because they do have weights.
01:06 One of the safety procedures that they have is to make themselves lighter.
01:10 So if you're heavier than the water, you sink.
01:13 If you're lighter than the water, you float.
01:15 The Titanic rests on the seabed of the Atlantic 3,800 metres underwater.
01:20 No light, temperatures are freezing.
01:22 The Titan has made 25 journeys before.
01:26 But it's also emerged the parent company Oceangate had fired an expert who reported
01:30 safety problems in 2018.
01:33 But those issues will be looked at later, as rescue teams work non-stop for signs of
01:37 life.
01:37 [BLANK_AUDIO]
