Page 246 - UK Air Operations Regulations 201121

Part CAT - ANNEX IV - Commercial Air Transport Operations

(3) failures other than ILS, MLS affect RVR only and not DH.

CAT.OP.MPA.110 AMC12 Aerodrome operating minima
VFR OPERATIONS WITH OTHER-THAN-COMPLEX MOTOR-POWERED AIRCRAFT
For the establishment of VFR operation minima, the operator may apply the VFR operating minima
specified in Part-SERA. Where necessary, the operator may specify in the OM additional conditions
for the applicability of such minima taking into account such factors as radio coverage, terrain, nature
of sites for take-off and landing, flight conditions and ATS capacity.
CAT.OP.MPA.110 GM1 Aerodrome operating minima
ONSHORE AERODROME DEPARTURE PROCEDURES — HELICOPTERS
The cloud base and visibility should be such as to allow the helicopter to be clear of cloud at take-off
decision point (TDP), and for the pilot flying to remain in sight of the surface until reaching the
minimum speed for flight in instrument meteorological conditions (IMC) given in the AFM.
CAT.OP.MPA.110 GM2 Aerodrome operating minima
APPROACH LIGHTING SYSTEMS — ICAO, FAA
The following table provides a comparison of ICAO and FAA specifications.
Note:
ALSF: approach lighting system with sequenced flashing lights;
MALS: medium intensity approach lighting system;
MALSF: medium intensity approach lighting system with sequenced flashing lights;
MALSR: medium intensity approach lighting system with runway alignment indicator lights;
ODALS: omnidirectional approach lighting system;
SALS: simple approach lighting system;
SALSF: short approach lighting system with sequenced flashing lights;
SSALF: simplified short approach lighting system with sequenced flashing lights;
SSALR: simplified short approach lighting system with runway alignment indicator lights;
SSALS: simplified short approach lighting system.

CAT.OP.MPA.110 GM3 Aerodrome operating minima
SBAS OPERATIONS
(a) SBAS CAT I operations with a DH of 200 ft depend on an SBAS system approved for
operations down to a DH of 200 ft.
(b) The following systems are in operational use or in a planning phase:
(1) European geostationary navigation overlay service (EGNOS) operational in Europe;
(2) wide area augmentation system (WAAS) operational in the USA;
(3) multi-functional satellite augmentation system (MSAS) operational in Japan;
20th November 2021 246 of 856