Does this amendment apply to all Boeing aircraft?
I wonder if it Is associated with the recent introduction of Operational Landing Distances, re TALPA and the worldwide harmonised view of landing performance. As per #5, +15kts should be sufficient, if not then question the choice to make the approach.
An associated aspect is that the general definition of a stabilised approach is based on the ‘Boeing’ +20 kts, which with some interpretations implies allowed at the threshold. Other views prefer +15 limit at the threshold as this better represents an extreme limit of the safety margins in landing performance, but not always.