An ATSB discussion paper has found from a large survey of endorsed pilots that a recently introduced type of satellite approach [termed RNAV (GNSS)] used during the May 2005 fatal accident near Lockhart River is perceived as difficult, particularly in bad weather and without automation and vertical guidance instruments.
The Australian Transport Safety Bureau sent the survey to all Australian pilots with Area Navigation (RNAV) Global Navigation Satellite System (GNSS) endorsement and received 748 representative responses, a response rate of 22 per cent.
The most difficult RNAV (GNSS)…