Page 60 - UK Air Operations Regulations (Consolidated) 201121

Part ARO - ANNEX II - Authority Requirements for Air Operations

SINGLE- ENGINED TURBINE AEROPLANES AT NIGHT OR IN INSTRUMENT METEOROLOGICAL
CONDITIONS (SET- IMC)
(a) When verifying compliance with the applicable requirements of Subpart L (SET-IMC) of
Annex V (Part-SPA) to Regulation (EU) No 965/2012, the CAA should check that:
(1) the aeroplane is eligible for SET-IMC operations;
(2) the maintenance and operational procedures are adequate;
(3) a training programme for the flight crew involved in these operations has been
established; and
(4) the operator has adequately assessed the risks of the intended operations.
In particular, the CAA should assess the operator’s safety performance, experience and
flight crew training, as reflected in the data provided by the operator with its application, to
ensure that the intended safety level is achieved.
With regard to the operator’s specific SETIMC flight crew training, the CAA should ensure
that it complies with the applicable requirements of Subpart FC (FLIGHT CREW) of
Annex III (PartORO) and Subpart L (SETIMC) of Annex V (PartSPA) to Regulation (EU) No
965/2012, and that it is appropriate to the operations envisaged.
The CAA should assess the operator’s ability to achieve and maintain an acceptable level
of power plant reliability by reviewing its enginetrendmonitoring programme and
propulsion reliability programme, which are established in accordance with Annex I
(PartM) to Regulation (EU) No 1321/2014.
(b) The CAA may impose temporary restrictions to the operations (e.g. limitation to specific
routes) until the operator is able to demonstrate that it has the capability to operate safely
in compliance with all the applicable requirements.
(c) When issuing the approval, the CAA should specify:
(1) the particular engine-airframe combination;
(2) the identification by registration of the individual aeroplanes designated for single-
engined turbine aeroplane operations at night and/or in IMC; and
(3) the authorised areas and/or routes of operation.
VALIDATION OF OPERATIONAL CAPABILITY
Observation by the CAA of a validation flight, simulating the proposed operation in the aeroplane,
should be carried out before an approval is granted. This should include flight planning and preflight
procedures, as well as a demonstration of the following simulated emergency procedures in
simulated IMC/night:
(a) total failure of the propulsion system; and
(b) total loss of normally generated electrical power.
In order to mitigate the risks associated with the conduct of such emergency procedures, the
following should be ensured:
(a) in case of planned single-pilot operations, the crew should be composed of the
commander using view-limiting devices for the purpose of simulating IMC/night and a
second rated pilot whose responsibility is to help maintain visual separation from other
aircraft, clouds, and terrain;
(b) the flight should be conducted in visual meteorological conditions (VMC) by day, and
additional, more restrictive weather minima may be established for the demonstration of
the procedures involving higher risks; and
(c) touch drills should be used when simulating a total failure of the propulsion system.
ARO.OPS.200 GM1 Specific approval procedure
LIMITATIONS FOR HELICOPTER OFFSHORE OPERATIONS
The CAA may impose limitations related to routes and areas of operation for offshore helicopter
operations. Such limitations may be specified in the operations specifications (OPSSPEC) or
specific approved documents or in the aeronautical information publication (AIP) or by other means.
For operations over sea areas, limitations may include a maximum significant wave height under
which there is a good prospect of recovery of survivors. This should be linked with the available
search and rescue capabilities in the different sea areas.
ARO.OPS.200 GM2 Specific approval procedure
SPECIFIC APPROVALS FOR TRAINING ORGANISATIONS
The specific approvals, as established in Appendix III, for non-commercial operations and specialised
operations, also apply to training organisations with a principal place of business in the UK.
ARO.OPS.200 GM3 Specific approval procedure
INSERTION OF RELEVANT INFORMATION INTO THE OPERATIONS SPECIFICATIONS
When issuing the operations specifications in accordance with Appendix II, where the operation does
not include helicopter operations, the helicopter-related elements contained in the operations
specifications may be omitted.
ARO.OPS.205 Minimum equipment list approval
(a) When receiving an application for initial approval of a minimum equipment list (MEL) or an
amendment thereof from an operator, the CAA shall assess each item affected, to verify
compliance with the applicable requirements, before issuing the approval.
(b) The CAA shall approve the operator’s procedure for the extension of the applicable
rectification intervals B, C and D, if the conditions specified in ORO.MLR.105(f) are
demonstrated by the operator and verified by the CAA.
(c) The CAA shall approve, on a case-by-case basis, the operation of an aircraft outside the
constraints of the MEL but within the constraints of the master minimum equipment list
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