If you receive a LOI after the FAF, what is your course of action?

When you receive a Loss of Instrument (LOI) report after the Final Approach Fix (FAF), the most appropriate course of action is to proceed to the missed approach point. This is because the LOI indicates that you may no longer have reliable reference for maintaining the instrument approach and safety could be compromised.

Continuing the approach as planned or descending to the next altitude is not advisable as it could lead you further from a safe outcome without proper visual references or approvals. Requesting vectors for landing could also be inappropriate in this context, as there are established procedures that must be followed when instrument operations are deemed unreliable due to a LOI. The missed approach procedures are designed to safely transition the aircraft to a safe flight path, thereby upholding safety standards and regulations.