SINGAPORE — A 21-year-old PADI scuba diving instructor and dive shop owner died after a failed shared-air emergency ascent. Authorities told CDNN that a rescue boat operated by the Maritime and Port Authority of Singapore (MPA) spotted the body of Gerald Chia at about 6:00 pm on Sunday. Chia disappeared about noon on Friday while diving on an oil rig off western Singapore, only his second dive for J Diving Services, a commercial dive operator. According to A Fong, a supervisor at J Diving Services, Chia was working with another experienced diver to install shackles on an oil rig moored in the Jurong West Anchorage when he apparently ran out of air at a depth of about 20 meters. According to the buddy diver, Chia took two breaths of air from the buddy's air source and then started to ascend. The buddy diver followed but said he lost contact with Chia on the way to the surface and was unable to relocate him. Chia, who studied marketing at the Management Development Institute of Singapore, owned a dive shop called Jet Scuba and also worked as a free-lance commercial diver. | 
