Safety requirements for helicopter “joyflights” linked to Sea World are tightened following a fatal crash that kills four people. Multiple reports say the changes follow the accident, which becomes a focus for regulators and the operator responsible for the flights. The safety overhaul is described as an overhauling of procedures and compliance measures for joyflight operations associated with the theme park. While details of the specific technical or procedural changes are not fully specified in the provided accounts, both outlets frame the update as a response to the tragedy and as part of broader efforts to reduce the risk of similar incidents. The reports characterize Sea World as one of Australia’s best-known theme parks and link the tightened aviation safety measures directly to the joyflights that operate in association with the venue. The coverage indicates that authorities move to reassess and strengthen safety practices after the crash, affecting how such flights are conducted going forward.