Harry died on the 26th May this year. Here is a brief outline of the inquiry: Inquest, Harry Railing, Bournemouth coroner's office, 19th October 1999 Harry was using a standard argon bottle for suit inflation, and for reasons not yet established, his suit overinflated, and he made a rapid uncontrolled ascent to the surface. On testing, DERA found no evidence of the suit inflator sticking, however, the argon bottle supplying the suit had only approximately 14 bar of pressure remaining. It was thought that he had filled this bottle from a larger bottle he had had filled a few days earlier, and may have been used on a previous dive. DERA changed the batteries and sensors, and found the unit was 'functioning within acceptable allowances'. Initially the unit, when removed from Harry, was attached to a buoy, and left in the water. It was retrieved when the other divers surfaced, approximately an hour later. It was not stated whether the mouthpiece had been closed, but there was an amount of flooding of the loop. The (his) left handset gave readouts of: cell error, master 0.7, low O2 0.12 0.61 0.14 0.12 0.62 0.16 The second handset had no display at all. An alarm was sounding. This continued until the boat reached shore, some two hours later, when it was switched off. There was a demand regulator that had been bungied around his neck. This was coming from the diluent bottle, and was noticed to have a slight free-flow. His diluent hose had become detached, possibly during de-kiting prior to airlift his exhail hose ad been pulled away from the counterlung O2cylinder was 170bar diluent cylinder 70 bar bailout: 7l 70% nitrox, 250 bar 7l trimix (reportedly 23/27) was lost during de-kiting No questions were asked as to the handset readout, and the absence of a readout on the second handset. The PM showed Harry was a normal and healthy, with no indication of any health problems. He had died from a pulmonary haemoragic baratrauma. The helicopter winchman pointed out that his unfamiliarity with the equipment and how to release the diver lead to delay. This was also stated by the skipper of the boat Harry's dive computer showed a descent time of 3 minutes, maximum depth of 54m ( normal descent rate as compared to previous profiles) followed by a return to the surface in 54 seconds. Harry had had the unit for only a short time, and it looked like new. He had not reported any previous problems with it. An open verdict was recorded. My condolences once again, to Vanessa and his two children. -- Send mail for the `techdiver' mailing list to `email@example.com'. Send subscribe/unsubscribe requests to `firstname.lastname@example.org'.
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