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ATPL » Air Law – Aeroplane » Alternate Requirements

36.52 Alternate Requirements


36.52.2 State the meteorological minima at destination which would require an alternate to be nominated. CAR 91

91.405 IFR alternate aerodrome requirement

(a) A pilot-in-command of an aircraft operating under IFR must list at least 1 alternate aerodrome in the flight plan unless—

  • (1) the aerodrome of intended landing has a standard instrument approach procedure published in the applicable AIP; and
  • (2) at the time of submitting the flight plan, the meteorological forecasts indicate, for at least 1 hour before and 1 hour after the estimated time of arrival at the aerodrome of intended landing, that—
    • (i) the ceiling at the aerodrome will be at least 1000 feet above the minimum published in the applicable AIP for the instrument procedure likely to be used; and
    • (ii) visibility will be at least 5 km, or 2 km more than the minimum published in the applicable AIP, whichever is the greater.



36.52.4 State the alternate requirements for a CAR Part 121 IFR flight, if meteorological conditions at the estimated time of arrival at the destination aerodrome, are below the minimum prescribed for the instrument approach procedure likely to be used.

121.157 Meteorological conditions – IFR flight

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