When flying a straight-in precision or non-precision instrument approach, when should the missed approach procedure be executed?
Note that this is being asked in the context of FAA regulations, but ICAO answers are also welcomed. Understanding the overlap or differences is also appreciated.
While flying the KLEX ILS 22 you find yourself 3.0 DME at 1900 MSL. You call missed and begin climbing. A moment later you are passing 2000 MSL and 2.8 DME. When do you begin your the missed approach procedure, specifically the left turn direct HYK for the hold?
Let's add another scenario to example 1, what if you were give alternate instructions of climb to 1000 then climbing left turn to 270, climb to 3100? Would that change anything about when to execute the turns in the missed approach procedure?
This example is a precision approach. It is also specifically a situation where the aircraft is going missed well before DA/DH. And it includes a second portion where alternate missed approach procedure has been provided by ATC.
While flying the KLEX LOC 22 you pass the FAF BRIDL at 3200 MSL. You descend to 1520 and level off where you remain in IMC with no visual references. When do you begin the missed approach procedure?
This example is a non-precision approach. It assumes that the approach is continued at MDA and visual references will not be seen.