AMC1 CAT.OP.MPA.182 Fuel or energy scheme — aerodrome selection policy — aeroplanes

CAA ORS9 Decision No. 47

BASIC FUEL SCHEME – TAKE-OFF ALTERNATE AERODROME

The take-off alternate aerodrome should not be farther from the departure aerodrome than:

  1. for two-engined aeroplanes:

    1. 1-hour flight time at a one-engine-inoperative (OEI) cruising speed according to the AFM in ISA and still-air conditions using the actual take-off mass; or

    2. the extended-range twin operations (ETOPS) diversion time that is approved in accordance with Subpart F of Annex V (Part-SPA) to UK Regulation (EU) No 965/2012, subject to any minimum equipment list (MEL) restriction, up to a maximum of 2-hour flight time at OEI cruising speed according to the AFM in ISA and still-air conditions using the actual take-off mass;

  2. for three- or four-engined aeroplanes, 2-hour flight time at an all-engines-operating cruising speed according to the AFM in ISA and still-air conditions using the actual take-off mass;

  3. for operations approved in accordance with Annex V (Part-SPA), Subpart L SINGLE-ENGINED TURBINE AEROPLANE OPERATIONS AT NIGHT OR IN IMC (SET-IMC), 30 minutes flight time at normal cruising speed in still-air conditions, based on the actual take-off mass; and

  4. in the case of multi-engined aeroplanes, if the AFM does not contain an OEI cruising speed, the speed to be used for calculation shall be that which is achieved with the remaining engine(s) set at maximum continuous power.