Hazard Analysis of the Use of GPS in Offshore Helicopter Operations

The report details the three-part hazard analyses performed for helicopter offshore operations on the UK continental shelf. Part 1 addresses the use of GPS for en-route navigation. Part 2 covers the existing 'basic' offshore weather radar approach. Part 3 deals with an 'enhanced' offshore weather radar approach which utilises existing North Sea helicopter GPS equipment to underpin the 'basic' weather radar approach. In each analysis, the individual hazards and their potential consequences are identified and are then mapped onto conflict scenarios. The conflict scenarios are then assessed for severity and probability and the resulting risk compared with a modified JAA AMJ 25.1309 risk