(1) This section applies if, after CASA's investigation under section 30DG:
(a) CASA has reason to believe that a serious and imminent risk to air safety would exist if the civil aviation authorisation were not varied, suspended or cancelled; and
(b) the grounds for CASA's belief are related to the circumstances that gave rise to CASA's decision to suspend the authorisation under section 30DC.
(2) CASA may, within 5 business days after the last day on which the order is in force:
(a) give the holder of the authorisation a show cause notice; and
(b) allow the holder to show cause, within such reasonable time as CASA specifies in the notice (not more than 28 days), why the authorisation should not be varied, suspended or cancelled.
Note: The suspension under section 30DC continues in force beyond the end of the order and may continue until at least the end of the 5 days that CASA has to decide whether to give a show cause notice--see section 30DJ.