** Air New Zealand AIR.NZ falls as much as 2.4% to NZ$0.620; set to drop most since Jan. 20
** Stock set for weakest week since Nov. 11, 2024
** New Zealand's flagship carrier earlier this week said it will stop direct flights to Seoul at the end of March; flagged issues of engine availability for its fleet
** Macquarie raises PT to NZ$0.80 from NZ$0.79; retains "outperform"
** Believes co will deliver towards upper end of H1 outlook; sees aircraft availability issues normalising
** Shares gained 21.7% in 2024
(Reporting by Nichiket Sunil in Bengaluru)
((Nichiket.Sunil@thomsonreuters.com;))