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Beyond the surface

101 members • Free

3 contributions to Beyond the surface
DSV tracker
It tracks all 55 saturation dive support vessels worldwide on an interactive map, pulling from AIS feeds, satellite detection, vessel registries and industry databases. The map refreshes hourly, so you get a current picture of where the fleet is deployed. (This is open source positioning data - subject to error). Each vessel has a summary of key info covering DP class, sat system config, crane capacity, deck space and draft. There's also a dashboard breaking down the fleet by region, operator and tier. Free to use, no login needed. Built it because I wanted one place to see what's out there without clicking through ten different sites. This was made by Jon McCarty https://dsv-fleet.com/
DSV tracker
1 like • 9d
Very useful tracker ... well done Jon
Episode 6: When Steel Whispers
In 1980, a 6mm fatigue crack in a weld capsized the Alexander L. Kielland platform in the North Sea, killing 123 men. Steel doesn’t fail suddenly—it whispers first. But only if inspection is listening. This week I break down what offshore inspection actually is: the physics behind ACFM and magnetic particle inspection, how we find cracks at 100 meters depth in zero visibility, and the difference between being qualified and being experienced. Plus the story of a diver who claimed to have magnetic readings before I turned on the equipment—and what that taught both of us about humility offshore. This is the invisible layer that prevents disasters. Listen now on Spotify and Apple: https://open.spotify.com/episode/1co93erZviqeA8Usb9jUYc?si=7TW28H0ZQuKcwqhTimgB4w https://podcasts.apple.com/gb/podcast/episode-6-when-steel-whispers-inside-offshore-inspection/id1841251951?i=1000750327623
Episode 6: When Steel Whispers
1 like • Feb 20
Seen many critical failures over the years, but many of the problems start with poor design, then poor fabrication methodology even before it gets wet. How the welder puts down the weld and how its ground and finished can be a sleeping initiator. Then add coatings & CP problems into the mix. More attention being paid to all this these days - due to the learnings from catastrophic events of yesteryear, but diligent inspection is a lifesaver not a chore.
INCIDENT CASE STUDY: When Production Pressure Kills Safety Culture
Date: 10 December 2018 Location: Las Palmas, Gran Canaria, Spain Company: Otech Marine Services Client: Diamond Offshore Project: Ocean Great White - Thruster Anode Welding Incident Type: Type 2 Decompression Sickness (Vestibular Bends) Outcome: Diver airlifted to Tenerife for hyperbaric treatment THE INCIDENT A commercial diver suffered Type 2 DCS with vestibular symptoms (severe dizziness, balance loss, ear pain) after a 56-minute bottom time at 60ft. Within 10 minutes of surfacing, the diver reported symptoms. What followed was a textbook example of how NOT to manage a diving emergency. THE SETUP: Recipe for Disaster Aggressive Schedule Dive Tables Used: USN Rev. 7 at 60ft/63min What Should Have Been Used: Norwegian tables (more conservative) Reality: Diver had completed 5 consecutive days of hard repetitive diving Red Flag: No formal deviation request submitted for using non-Norwegian tablesThe Dive Profile (Last Day) Date Bottom Time Surface Interval Max Depth Table Used 05.12.18 38 mins N/A 16.6m 18.3/63 60/63 06.12.18 38 mins 38 hrs 18 mins 13.5m 15.2/92 50/92 08.12.18 57 mins 26 hrs 56 mins 17.4m 18.3/63 60/63 09.12.18 24-45 mins 24 hrs 45 mins 17.6m 18.3/63 60/63 09.12.18 56 mins 19 hrs 34 mins 17.6m 18.3/63 60/63 Bottom line: This diver was being pushed to the absolute limit, repeatedly. THE CRITICAL FAILURES 1. REFUSAL TO RECOMPRESS IMMEDIATELY What Happened: Diving Supervisor decided AGAINST using the onsite DDC Reason given: "Faulty O2 analyzer - can't control O2% in chamber" Diver left breathing surface O2 instead Why This Was Wrong: Treatment Table 6 requires recompression to 60ft IMMEDIATELY O2 analyzer failure does NOT prevent chamber use Could have vented chamber and topped up with fresh gasEvery minute delayed = increased risk of permanent injury The Expert Opinion: "We should have used the Otech DDC immediately (treatment table 6) with direct communication with the hyperbaric doctor and not wait for the ambulance and the Hyperbaric facilities of the island because Lewis had obvious neurological signs and
INCIDENT CASE STUDY: When Production Pressure Kills Safety Culture
2 likes • Jan 27
A horrible example of how bad it gets when it all starts to go wrong - poor prep, poor supervision, poor emergency response, poor duty of care ... then the diving contractor skips off and leaves a broken diver to it. Dead career and no accountability. Watch who you work for.
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Bob Bryce
1
1point to level up
@bob-bryce-8172
40yrs in subsea plumbing from dogs body to senior management and back again

Active 10h ago
Joined Jan 27, 2026