Page 680 - UK Air Operations Regulations 201121

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MLS or a stabilised approach (SAp), the MAPt associated with an ILS or MLS
procedure without glide path (GP-out procedure) or the SAp, where
applicable, should be used.
(2) If a prescribed missed approach is published for the circling manoeuvre, this
overrides the manoeuvres prescribed below.
(3) If visual reference is lost while circling to land after the aeroplane has departed from
the initial instrument approach track, the missed approach specified for that
particular instrument approach should be followed. It is expected that the pilot will
make an initial climbing turn toward the intended landing runway to a position
overhead of the aerodrome where the pilot will establish the aeroplane in a climb on
the instrument missed approach segment.
(4) The aeroplane should not leave the visual manoeuvring (circling) area, which is
obstacle protected, unless:
(i) established on the appropriate missed approach procedure; or
(ii) at minimum sector altitude (MSA).
(5) All turns should be made in the same direction and the aeroplane should remain
within the circling protected area while climbing either:
(i) to the altitude assigned to any published circling missed approach
manoeuvre if applicable;
(ii) to the altitude assigned to the missed approach of the initial instrument
approach;
(iii) to the MSA;
(iv) to the minimum holding altitude (MHA) applicable for transition to a holding
facility or fix, or continue to climb to an MSA; or
(v) as directed by ATS.
When the missed approach procedure is commenced on the ‘downwind’ leg of the
circling manoeuvre, an ‘S’ turn may be undertaken to align the aeroplane on the
initial instrument approach missed approach path, provided the aeroplane remains
within the protected circling area.
The pilotincommand should be responsible for ensuring adequate terrain clearance
during the abovestipulated manoeuvres, particularly during the execution of a
missed approach initiated by ATS.
(6) Because the circling manoeuvre may be accomplished in more than one direction,
different patterns will be required to establish the aeroplane on the prescribed
missed approach course, depending on its position at the time visual reference is
lost. In particular, all turns are to be in the prescribed direction if this is restricted,
e.g. to the west/east (left or right hand) to remain within the protected circling area.
(7) If a missed approach procedure is published for a particular runway onto which the
aeroplane is conducting a circling approach and the aeroplane has commenced a
manoeuvre to align with the runway, the missed approach for this direction may be
accomplished. The ATS unit should be informed of the intention to fly the published
missed approach procedure for that particular runway.
(8) The pilot-in-command should advise ATS when any missed approach procedure
has been commenced, the height/altitude the aeroplane is climbing to and the
position the aeroplane is proceeding towards and/or heading the aeroplane is
established on.
NCO.OP.113 Aerodrome operating minima — onshore circling operations with helicopters
The MDH for an onshore circling operation with helicopters shall not be lower than 250 ft and the
meteorological visibility not less than 800 m.
NCO.OP.115 Departure and approach procedures — aeroplanes and helicopters
(a) The pilot-in-command shall use the departure and approach procedures established by
the State of the aerodrome, if such procedures have been published for the runway or
FATO to be used.
(b) The pilot-in-command may deviate from a published departure route, arrival route or
approach procedure:
(1) provided obstacle clearance criteria can be observed, full account is taken of the
operating conditions and any ATC clearance is adhered to; or
(2) when being radar-vectored by an ATC unit.
NCO.OP.116 Performance-based navigation — aeroplanes and helicopters
The pilot-in-command shall ensure that, when PBN is required for the route or procedure to be flown:
(a) the relevant PBN navigation specification is stated in the AFM or other document that has
been approved by the certifying authority as part of an airworthiness assessment or is
based on such approval; and
(b) the aircraft is operated in conformance with the relevant navigation specification and
limitations in the AFM or other document mentioned above.
NCO.OP.116 AMC1 Performance-based navigation — aeroplanes and helicopters
PBN OPERATIONS
For operations where a navigation specification for performance-based navigation (PBN) has been
prescribed and no specific approval is required in accordance with SPA.PBN.100, the pilot-in-
command should:
(a) use operating procedures specifying:
(1) normal, abnormal and contingency procedures;
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