Trouble at the end of a long flight...
The comment about Vref and adding extra for the conditions reminds me of my "hoary" old Lanc pilot who said that after a long flight into enemy territory - and don't forget only one pilot on the Lanc - if the weather was even slightly unstable it was "add 5 knots for the wife and 5 for each child"
He said he thanked himself for that reminder on several occasions. (I am not suggesting anybody does this and ignores the manual!)
What concerns me quite a little about this incident is that a PPL reported a steep rate of bank on late finals. That does not suggest engine failure but abnormal airflow i.e. shear, violent gusting etc. Any comments?