I was Marine Advisor on board DB 29 while working off Sarawak a few months before her sinking and followed the news of her capsize and sinking very closely at the time.
As you say there are very little to find about this incident, but I found this on youtube:
Apparently the Incident Report are available on this website, if anybody have an account:
The Sat-dive set on DB29 was of the portable type. It was not “float free”, not attached to any Hyperbaric Lifeboat. or escape chamber and the bell could only hold 2 pers.
IOW; without any escape possibilities for the divers in saturation.
Here is the “float-free” Escape chamber on another Construction barge:
Instructions to anybody finding and recovering this Escape Chamber:
The big question asked at the time was; Why wasn’t the POB reduced to min. require for transit?
Why was operation continuing so late that divers were still in saturation on transit?
Who was in charge at the time and were there any Marine expertise on board.
PS> The reason I was on board for the job in Sarawak was because the Oilco. demanded Marine expertise, even in the benign waters there. (No typhoons possible)
I’ll try to refresh my memory and see if I can find any more info from that time.