in the event of engine failure on final approach,
Flaps 15.
Bug Speed +20knots.
if between 1000agl & 500agl: go around mandatory if IMC & may elect to continue if VMC, requiring to be stabilised by 500.
below 500agl: go around mandatory IMC or VMC.
For the avoidance of doubt, if an engine fails on approach a go around is only
mandatory below 1000ft AAL when IMC. Part A Page 8-131.