THE Civil Aviation Safety Authority has suspended all Tiger Airways Australia domestic flights with immediate effect from today.
CASA says the action has been taken because it believes permitting the airline to continue to fly poses a serious and imminent risk to air safety.
The suspension of Tiger Airways Australia follows the issue of a show cause notice to the airline in March this year, and CASA says taking Tiger's response into account, it's imposed a number of conditions on the airline's air operator's certificate.
They include actions to improve the proficiency of Tiger's pilots and their training and checking processes, changes to fatigue management and improvements to maintenance control.
Tiger says its domestic services will remain suspended until next Saturday while it conducts investigations into two recent operational incidents.
It says its services to and from Singapore are not affected and continue to operate normally.
The airline says it is doing all it can to minimise passenger disruption, but customers with bookings in Australia should not travel to the airport and will be offered a full refund or credit for deferred travel.
Read more: Tiger planes grounded, pose 'serious risk' | News.com.au