Prospector,
Fair enough.
That was not one of Chippendale's better reports, from altering the CVR transcript outside of accepted protocols to alleging the flight crew were not deceived by the changed nav track of which they were not notified (self-evidently they were, the crash site location conclusively proving it).
Mahon contributed enormously to aviation safely, even if his report was ultimately flawed in relation to airmanship and post-incident events. He should have called more upon Rochford Hughes, for one thing.
Those Antarctic flights were systemically an accident waiting to happen for AirNZ, hence the hull loss on the 14th trip down there.
Nice chatting. Be well.
WW