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.

Immersion Pulmonary Edema (IPE) in a New, Healthy Diver

A diver requires rescue after experiencing shortness of breath and coughing up blood while performing surface skills for entry-level scuba certification.

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A Diver Turns Her Valve Off Instead of On

Turning the tank valve back half-a-turn often confuses divers and can inadvertently make breathing difficult at depth.

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A Skin Bend Cuts a Diving Holiday Short

While many divers trust their dive computers completely, the fact is that no dive computer knows who is wearing it, they all simply estimate no-stop limits based on a theory.

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An Elderly Diver Appears Confused

Being aware of other divers in the water does not need to be limited to just dive buddies.

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Eye Irritated by Defogging With Shampoo

Always practice proper mask cleaning protocols. There are several methods to practice to ensure your mask does not fog.

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Juvenile Octopus Bites Diver

Do not handle marine life. An infection can appear within hours to several weeks following injury and therefore should be monitored for signs of swelling, redness, pain and heat.

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Nausea at Depth

A diver started experiencing unexplained symptoms and made the smart decision to call the dive.

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Rapid Ascent Due to Broken Delayed Surface Marker Buoy (DSMB)

Equipment failure during DSMB deployment causes multiple problems for this diver.

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Disoriented While Navigating by Compass in Low-Visibility Water

Newbie divers should heed the warning: Don’t test new equipment and try too many new things all at once.

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Diving and Drinking Do Not Mix

Do not drink and dive. A diver dove too deep and ran out of air. His emergency ascent proved extremely hazardous.

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