CDFA and planning minima...

[HIGHFLY33]

Generally speaking Many operators use MDA+50 ft as a company DA to avoid penetrating the MDA.

My question is therfore the following.. For planning purposes , Asuming an operator is using MDA+ 50 ft practically to avoid penetrating MDA

Is MDA + 50 ft the legal planning minima ? or can the standard MDA be used ?

Where can i find a current refrence for this ?

[HIGHFLY33]

still looking for help on this one, anyone ????

[de facto]

MDA is the legal planning altitude.
Airlines including my current one also add 50 ft on the ND and the MCP rounded up to the next 100.

So an MDA of 410ft will become 460ft on the ND and 500 ft on the MCP.
The call out of minimums will be at 460ft,a loss of 20-30 ft is expected during a normal go around maneuver.
50 ft altitude is about 150 meters extra vis required to the minimum vis associated with to the MDA.