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.
     20th November 2021                                                                                     287 of 856
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