Reasons? All of the above mentioned and quite a few more as well. No pay rise since the 1980s, cr@p exchange rate with no protection system, jobs available elsewhere now and total surprise from RBA that it is finding it very difficult to attract suitable pilots and that those that are in Brunei are no longer just looking to leave.......they are leaving.
More importantly for RBA, those pilots that are continuing to fly the line are doing it without an once of goodwill and are starting to feel very resentful. That will cost RBA.
Time for a backdated pay rise Mr Foster.