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Maximum distance from an adequate aerodrome for two-engined aeroplanes without an ETOPS approval

Wikis > Preflight > Maximum distance from an adequate aerodrome for two-engined aeroplanes without an ETOPS approval
Maximum distance from an adequate aerodrome for two-engined aeroplanes without an ETOPS approval

(a) Unless specifically approved by the Authority in accordance with OPS 1.246 (a) (ETOPS approval), an operator shall not operate a two-engined aeroplane over a route which contains a point further from an adequate aerodrome (under standard conditions in still air) than, in the case of:

    1. Performance Class A aeroplanes with either:
    (i) a maximum approved passenger seating configuration of 20 or more; or
    (ii) a maximum take-off mass of 45 360 kg or more,
    the distance flown in 60 minutes at the one-engine-inoperative cruise speed determined in accordance with sub- paragraph (b) below;

    2. Performance Class A aeroplanes with:
    (i) a maximum approved passenger seating configuration of 19 or less; and
    (ii) a maximum take-off mass less than 45 360 kg,
    the distance flown in 120 minutes or, if approved by the Authority, up to 180 minutes for turbo-jet aeroplanes, at the one-engine-inoperative cruise speed determined in accordance with subparagraph (b) below;

    3. Performance Class B or C aeroplanes:
    (i) The distance flown in 120 minutes at the one-engine-inoperative cruise speed determined in accordance with subparagraph (b) below; or
    (ii) 300 nautical miles, whichever is less.

(b) An operator shall determine a speed for the calculation of the maximum distance to an adequate aerodrome for each two-engined aeroplane type or variant operated, not exceeding VMO, based upon the true airspeed that the aeroplane can maintain with one-engine-inoperative.

(c) An operator must ensure that the following data, specific to each type or variant, is included in the Operations Manual:
1. the one-engine-inoperative cruise speed determined in accordance with subparagraph (b) above; and
2. the maximum distance from an adequate aerodrome determined in accordance with subparagraphs (a) and (b) above.

Note: The speeds specified above are only intended to be used for establishing the maximum distance from an adequate aerodrome.

See also:
ETOPS (Extended range operations for two engine aeroplanes)

 
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