Incident Insights

Learning from your own mistakes and misfortunes is crucial, but don’t miss the opportunity to learn from others’.

DAN has maintained a diving incident database since 1989. Originally limited to scuba diving incidents, it now includes open-circuit scuba, breath-hold and rebreather incidents. We collect, analyze, anonymize and publish this data in the DAN Annual Diving Reports and in these insights for the benefit of the diving community. Often featuring expert commentary, these summaries help divers of all experience levels improve their risk management skills and identify safe diving practices. Scroll down to browse the case summaries, or use the search field to the right.

To report an incident, click here. DAN relies on divers to voluntarily report cases and near misses. No individual will be identified in any case reports published or presented orally. We appreciate every diver’s time and effort in telling their stories and sharing their insights.

Buoyancy Wing Comes Loose During Dive

This incident serves to remind all divers wearing double tanks to tweak-down their wing-nuts when attaching a back-plate and wing.

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A Momentary Lapse Led to Trauma

Always sit the BCD down or have a buddy hold it securely before undoing the quick release clips.

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Unrehearsed Valve Shutdown Training Led to Confusion Underwater

During dive training it is always preferable to rehearse a new skill on land before the dive. This diver is to be commended for not panicking during the ascent.

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Diver Entered the Water With Tank Valve Turned Off

If the pressure gauge indicates you have gas, and it does not move when you breathe from the regulator, then you will not find yourself in the same situation as this diver.

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Wearing Mask Under the Hood Ended a CCR Dive

In this case, the diver felt his mask needed adjustment and he soon found himself out of breath so aborted the dive.

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Free-Flow Led to Emergency Ascent

A sudden free-flow can be alarming but breathing from a free-flowing regulator is a skill taught to open water divers and should not normally require a rapid ascent to the surface.

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Regulator Explosively Failed Under Pressure

This vivid and alarming incident serves as a reminder that in diving, as in life in general, you frequently get what you pay for and diving equipment is certainly worth investing in.

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“Normal” Dive Resulted in Decompression Sickness

This case serves as a reminder that our dive computer may well keep recalculating our allowable limits but that does not mean we should dive to those limits.

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Lost at Sea, Drifting

As this incident shows, at the end of the day it is our own lives in the balance and the diver now intends to take more responsibility for his.

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Yachtsman Suffers Stroke, Evacuated by DAN

“When we arrived at the airport, DAN had arranged for customs to be there to clear us and had an ambulance waiting to take us to the hospital.”

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