DAILY MAIL
The minivan-sized Titan sub, operated by US company OceanGate Expeditions, began its descent around midday UK time on Sunday. The final ‘ping’ to its mothership came around 3pm – putting it just above the famous wreck.
The US Coast Guard estimated Titan would run out of oxygen at 12.08pm GMT (7.08am EST and 9.08pm Sydney).
Questions have been asked about the speed at which OceanGate informed the authorities that it had lost contact with Titan and the sub’s alleged technical inadequacies – as well as the failure to address repeated warnings it was unsafe.
Below, MailOnline examines what are being seen as the key errors leading up to the disaster and the numerous occasions safety concerns were raised –
Delay before sounding the alarm
OceanGate Expeditions has been criticised for taking eight hours to tell the US Coast Guard it had lost contact with Titan.
The company’s Titan submerged at 12pm GMT on Sunday around 400 miles southeast of St John’s, Newfoundland, near to where the famous shipwreck lies.
At 1.45pm – an hour and 45 minutes into the dive – it lost contact with its mothership, the Polar Prince.
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