Three on board, pilot, medic, and maybe the winchoperator, who could be a partially trained "copilot" joe without a certificate, same as Australia SAR did for many years with the 139. In the UK they seem to put much bigger aircraft into the water with much more crew, so don't know how any of that relates here. Nobody had a PLB on them? They're smaller than a pack of cigarettes these days, and reliable. All the stuff that worked and didn't work, will be a good read.