Division NCC.IDE.A.145 Airborne weather detecting equipmentF1

The following aeroplanes shall be equipped with airborne weather detecting equipment when operated at night or in IMC in areas where thunderstorms or other potentially hazardous weather conditions, regarded as detectable with airborne weather detecting equipment, may be expected to exist along the route:

1. (a)

   pressurised aeroplanes;

2. (b)

   non-pressurised aeroplanes with an MCTOM of more than 5 700 kg; and

3. (c)

   non-pressurised aeroplanes with an MOPSC of more than nine.