QF won't want to withdraw from trunk route NZ domestic flying - it provides them with important on carriage into Australia/Intl routes.
The 73H's also allow them to conduct RNP approaches into ZQN.
Jetconnect cost base is less then JQ Aust cost base - it doesn't make a terrible amount of sense to replace a full product with a low cost one when the cost difference is small - especially when the full service product places you in a competitive position to gain on carriage.
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