If CASA thought that belatedly grounding Torres Strait carrier Aero Tropics on Friday night might deflect attention from its botched oversight of killer carrier Transair in advance of this week’s Senate inquiry it appears to be wrong.

On Wednesday, following the closing of written submissions last Friday, the Senate will conduct hearings into the safety regulator’s entrenched incompetence among other things prior to the 7 May 2005 crash of the small turbo prop that killed all 15 people on board on approach to the Lockhart River strip.