Page 287 - UK Air Operations Regulations (Consolidated) 201121
P. 287
Part CAT - ANNEX IV - Commercial Air Transport Operations
the departure and in-flight routes or profiles;
(ii) instruction on the operational and performance limitations or margins;
(iii) the use of in-flight ice detection, anti-icing and de-icing systems in both normal
and abnormal operation; and
(iv) instruction on the differing intensities and forms of ice accretion and the
consequent action which should be taken.
(2) For the cabin crew, the training should include:
(i) awareness of the conditions likely to produce surface contamination; and
(ii) the need to inform the flight crew of significant ice accretion.
CAT.OP.MPA.255 AMC2 Ice and other contaminants — flight procedures
FLIGHT IN EXPECTED OR ACTUAL ICING CONDITIONS — HELICOPTERS
(a) The procedures to be established by the operator should take account of the design, the
equipment and the configuration of the helicopter and also of the training which is needed.
For these reasons, different helicopter types operated by the same company may require
the development of different procedures. In every case, the relevant limitations are those
that are defined in the AFM and other documents produced by the manufacturer.
(b) For the required entries in the operations manual, the procedural principles that apply to
flight in icing conditions are referred to under Subpart MLR of Annex III (ORO.MLR) and
should be cross- referenced, where necessary, to supplementary, type-specific data.
(c) Technical content of the procedures
The operator should ensure that the procedures take account of the following:
(1) CAT.IDE.H.165;
(2) the equipment and instruments that should be serviceable for flight in icing
conditions;
(3) the limitations on flight in icing conditions for each phase of flight. These limitations
may be specified by the helicopter’s de-icing or anti-icing equipment or the
necessary performance corrections which have to be made;
(4) the criteria the flight crew should use to assess the effect of icing on the
performance and/or controllability of the helicopter;
(5) the means by which the flight crew detects, by visual cues or the use of the
helicopter’s ice detection system, that the flight is entering icing conditions; and
(6) the action to be taken by the flight crew in a deteriorating situation (which may
develop rapidly) resulting in an adverse effect on the performance and/or
controllability of the helicopter, due to either:
(i) the failure of the helicopter’s anti-icing or de-icing equipment to control a build-
up of ice; and/or
(ii) ice build-up on unprotected areas.
(d) Training for dispatch and flight in expected or actual icing conditions
The content of the operations manual, Part D, should reflect the training, both conversion
and recurrent, which flight crew, and all other relevant operational personnel will require in
order to comply with the procedures for dispatch and flight in icing conditions.
(1) For the flight crew, the training should include:
(i) instruction on how to recognise, from weather reports or forecasts that are
available before flight commences or during flight, the risks of encountering
icing conditions along the planned route and on how to modify, as necessary,
the departure and in- flight routes or profiles;
(ii) instruction on the operational and performance limitations or margins;
(iii) the use of in-flight ice detection, anti-icing and de-icing systems in both normal
and abnormal operation; and
(iv) instruction on the differing intensities and forms of ice accretion and the
consequent action which should be taken.
(2) For crew members other than flight crew, the training should include;
(i) awareness of the conditions likely to produce surface contamination; and
(ii) the need to inform the flight crew of significant ice accretion.
CAT.OP.MPA.260 Fuel and oil supply
The commander shall only commence a flight or continue in the event of in-flight replanning when
satisfied that the aircraft carries at least the planned amount of usable fuel and oil to complete the flight
safely, taking into account the expected operating conditions.
CAT.OP.MPA.265 Take-off conditions
Before commencing take-off, the commander shall be satisfied that:
(a) according to the information available to him/her, the weather at the aerodrome or
operating site and the condition of the runway or FATO intended to be used would not
prevent a safe take-off and departure; and
(b) established aerodrome operating minima will be complied with.
CAT.OP.MPA.270 Minimum flight altitudes
The commander or the pilot to whom conduct of the flight has been delegated shall not fly below
specified minimum altitudes except when:
(a) necessary for take-off or landing; or
(b) descending in accordance with procedures approved by the CAA.
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