Why OJF and OJK ?
They have both been recently upgraded to Prem Y.
I have no knowledge, but happy to speculate that two other considerations come into play
A) How many hours to Major maintenance visit - lotsa dollars to be saved there.
B) Nature of ownership, QF own some airframes and have a variety of differing lease types on others. Again major bikkies related to the timing of disposal.
Given my track record, I've likely missed the true reason.
