NCO.OP.142 Destination aerodromes — instrument approach operations

SI No. 1290/2024

Text in magenta in force from 30 October 2025

The pilot-in-command shall ensure that sufficient means are available to navigate and land at the destination aerodrome or at any destination alternate aerodrome in the case of loss of capability for the intended approach and landing operation.

The text below will replace the text above on 30 October 2025:

NCO.OP.142 Destination alternate aerodromes — instrument approach operations

The pilot-in-command of an aircraft must only select an aerodrome as a destination alternate aerodrome if either:

1. an IAP that does not rely on GNSS is available either at the destination aerodrome or at a destination alternate aerodrome; or

2. all of the following conditions are met:

   1. the onboard GNSS equipment is SBAS capable;

   2. the destination aerodrome, any destination alternate aerodrome, and the route between them are within SBAS service area;

   3. ABAS is predicted to be available in the event of the unexpected unavailability of SBAS;

   4. an IAP is selected (either at destination or destination alternate aerodrome) that does not rely on the availability of SBAS;

   5. an appropriate contingency action allows the flight to be completed safely in the event of the unavailability of GNSS.