Thanks to :: Chantelle Taylor-NewmanThe Diver Medic
Three pairs of divers dived on a wreck to a maximum depth of 39m. During the dive one of the divers came across a diver from one of the other pairs hanging in the water, motionless and without a regulator in his mouth. He swam to this diver and placed one of his regulators into his mouth. He did not respond so the diver tried another of the troubled diver’s regulators. He purged the regulator and the diver seemed to be breathing. They were sinking down beside the wreck so the rescuer attempted to inflate the casualty’s suit, but he could not find the direct feed. At this point the casualty’s buddy arrived and was able to locate and operate his direct feed. They brought him to the top of the wreck. The buddy deployed a delayed SMB and the three started their ascent. At 10m the rescuer’s computer indicated 10 min of decompression stops were required. At this point the casualty started to convulse. The casualty and his... buddy were buoyant and continued to the surface. The rescuer stopped and conducted a 5 min stop using nitrox. At the surface the casualty was recovered onto a dive platform at the back of the boat. The rescuer and the buddy were recovered into the boat and the Coastguard was alerted. The casualty, who was initially unconscious, was placed on oxygen and airlifted to a recompression facility for treatment. A lifeboat was launched to help to recover the other divers who had been left whilst the boat manoeuvred to facilitate the helicopter recovery of the casualty. The casualty recovered. He had been diving with a main cylinder and a pony cylinder both filled with air, and a side slung cylinder containing nitrox 65 for decompression. After the incident his main and pony cylinders were found to be empty but his main regulator had been venting whilst he was recovered into the boat and his rescuers had been able to inflate his BCD. The casualty reports having run out of air at depth and is unsure if he was unable to find his pony regulator or did not think to do so. It was thought that the diver entered the water using his pony regulator in error; when this cylinder was exhausted he assumed that his main supply had failed and was then unable to locate his pony regulator, which was already in his mouth.
Picture is from the net----not related to this story!