It was VH-EAN which landed at ADL (at 0437) then went into maintenance at ADL. Not sure of the outcome. According to the YSSY board:
"It was grounded in Perth for a long time due to #2 eng surging (i think) (from the west australian) and now #1, someones head is going to be hung in heavy maint."
One of the reasons VH-EBA has been thrown into ops early is to cover the operations of EAN.