(1)  
ensure that safety has priority over noise abatement; and

(2)  
be simple and safe to operate with no significant increase in crew workload during critical phases of flight.

CAT.OP.MPA.131 Noise abatement procedures — helicopters
(a)  
The operator shall ensure that take-off and landing procedures take into account the need to minimise the effect of helicopter noise.

(b)  
The procedures shall: 

(1)  
ensure that safety has priority over noise abatement; and

(2)  
be simple and safe to operate with no significant increase in crew workload during critical phases of flight.

CAT.OP.MPA.135 Routes and areas of operation — general
(a)  
The operator shall ensure that operations are only conducted along routes, or within areas, for which:

(1)  
ground facilities and services, including meteorological services, adequate for the planned operation are provided;

(2)  
the performance of the aircraft is adequate to comply with minimum flight altitude requirements;

(3)  
the equipment of the aircraft meets the minimum requirements for the planned operation; and

(4)  
appropriate maps and charts are available.

(b)  
The operator shall ensure that operations are conducted in accordance with any restriction on the routes or the areas of operation specified by the competent authority.

(c)  
(a)(1) shall not apply to operations under VFR by day of other-than-complex motor-powered aircraft on flights that depart from and arrive at the same aerodrome or operating site.

CAT.OP.MPA.136 Routes and areas of operation — single-engined aeroplanes
The operator shall ensure that operations of single-engined aeroplanes are only conducted along routes, or within areas, where surfaces are available that permit a safe forced landing to be executed.

CAT.OP.MPA.137 Routes and areas of operation — helicopters
The operator shall ensure that:
(a)  
for helicopters operated in performance class 3, surfaces are available that permit a safe forced landing to be executed, except when the helicopter has an approval to operate in accordance with CAT.POL.H.420;

(b)  
for helicopters operated in performance class 3 and conducting ‘coastal transit’ operations, the operations manual contains procedures to ensure that the width of the coastal corridor, and the equipment carried, is consistent with the conditions prevailing at the time.

CAT.OP.MPA.140 Maximum distance from an adequate aerodrome for two-engined aeroplanes without an ETOPS approval
(a)  Unless approved by the competent authority in accordance with SPA.ETOPS, the operator shall not operate a two-engined aeroplane over a route that contains a point further from an adequate aerodrome, under standard conditions in still air, than:
　
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本文鏈接地址：Annexes to the draft Commission Regulation on ‘Air Operations - OPS’(79)