Instrument Rating Exam · Mock exam

At what point does the 'decision to continue' principle become relevant for an IFR pilot en route?

• A.Only once the pilot has already formally declared MINIMUM FUEL to ATC and been granted full approach priority ahead of others
• B.When changed conditions (weather, fuel, navaids) invalidate the flight plan, requiring a fresh assessment of continuing, diverting or returning
• C.Only when ATC or Flightwatch specifically advises the pilot of significantly deteriorating destination conditions
• D.Only within the final 30 NM of the destination, when the approach and descent are being actively planned