There have been recurring rumors that Austral is considering acquiring 2/3 more Embraer 190's to add service to the Brazilian cities of Belo Horizonte (CNF), Brasilia (BSB), and Curitiba (CWB).
The specific aircraft that would be taken up are c/n 589, that was originally ordered by bankrupt Ukrainian carrier Aerosvit, and c/n 593 and c/n 608 not taken up by Estonian Airlines.
Austral reports average utilization of 12 hours per day for the current Embraer 190 fleet. However, aircraft LV-CET recently came out of its 6,000-hour "Basic Check 1" after approx. 27 months and 800 days in service (was delivered on 04Oct10), which would yield an average daily utilization of 7.5 hours. Additionally, the author of this blog has observed that most aircraft turnarounds by Aerolineas Argentinas and Austral aircraft at Buenos Aires Aeroparque (AEP) take 90-120 minutes so the claim of 12 hours per day utilization seems doubtful.