AMC2 NCO.OP.110 Aerodrome operating minima — aeroplanes and helicopters

CAA ORS9 Decision No. 47

Text in magenta in force from 30 October 2025

RVR OR VIS FOR INSTRUMENT APPROACH OPERATIONS — DETERMINATION OF DH/MDH FOR INSTRUMENT APPROACH OPERATIONS — AEROPLANES

1. The RVR (or for non-instrument runways, VIS) for straight-in instrument approach operations should not be less than the greatest of the following:

   1. the minimum RVR (or for non-instrument runways, VIS) for the type of runway used according to Table 1;

   2. the minimum RVR determined according to the MDH or DH and class of lighting facility according to Table 2;

   3. the minimum RVR according to the visual and non-visual aids and on-board equipment used according to Table 3.

2. For Category A and B aeroplanes, if the RVR determined in accordance with (a) is greater than 1 500 m, then 1 500 m should be used.

3. The visual aids, if available, may comprise standard runway day markings, runway edge lights, threshold lights, runway end lights and approach lights as defined in Table 6.

4. For night operations or for any operation where credit for visual aids is required, the lights should be on and serviceable except as provided for in GM5 NCO.OP.110.

Table 1

Type of runway versus minimum RVR or VIS — aeroplanes

Type of runway	Minimum RVR or VIS (m)
Precision approach (PA) runway, category I	550
Non-precision approach (NPA) runway	750
Non-instrument runway	Visibility according to Table 1 in NCO.OP.112 (Circling minima)

Table 2

RVR versus DH/MDH

DH or MDH			Class of lighting facility
			FALS	IALS	BALS	NALS
ft			RVR (m)
200	-	210	550	750	1 000	1 200
211	-	240	550	800	1 000	1 200
241	-	250	550	800	1 000	1 300
251	-	260	600	800	1 100	1 300
261	-	280	600	900	1 100	1 300
281	-	300	650	900	1 200	1 400
301	-	320	700	1 000	1 200	1 400
321	-	340	800	1 100	1 300	1 500
341	-	360	900	1 200	1 400	1 600
361	-	380	1 000	1 300	1 500	1 700
381	-	400	1 100	1 400	1 600	1 800
401	-	420	1 200	1 500	1 700	1 900
421	-	440	1 300	1 600	1 800	2 000
441	-	460	1 400	1 700	1 900	2 100
461	-	480	1 500	1 800	2 000	2 200
481	-	500	1 500	1 800	2 100	2 300
501	-	520	1 600	1 900	2 100	2 400
521	-	540	1 700	2 000	2 200	2 400
541	-	560	1 800	2 100	2 300	2 400
561	-	580	1 900	2 200	2 400	2 400
581	-	600	2 000	2 300	2 400	2 400
601	-	620	2 100	2 400	2 400	2 400
621	-	640	2 200	2 400	2 400	2 400
641	-	660	2 300	2 400	2 400	2 400
661	and above		2 400	2 400	2 400	2 400

Table 3

Visual and non-visual aids and/or on-board equipment versus minimum RVR — aeroplanes

Type of approach	Facilities	Lowest RVR (m)
PA and APV procedure	RTZL and RCLL	[no limitation]
	without RTZL and RCLL but using HUDLS or equivalent system; coupled autopilot or flight director to DH	[no limitation]
	No RTZL and RCLL, not using HUDLS or equivalent system or autopilot to DH.	750
NPA procedure	Final approach track offset <15° for category A and B aeroplanes or <5°for Category C and D aeroplanes	750
	Final approach track offset ≥ 15° for category A or B aeroplanes	1 000
	Final approach track offset ≥ 5° for category C or D aeroplanes	1 200

DETERMINATION OF RVR FOR INSTRUMENT APPROACH OPERATIONS — HELICOPTERS

5. For IFR operations, the RVR should not be less than the greatest of the following:

   1. the minimum RVR for the type of runway/FATO used according to Table 4; or

   2. the minimum RVR determined according to the MDH or DH and class of lighting facility according to Table 5;

   3. for PinS operations with instructions to ‘proceed visually’, the distance between the MAPt of the PinS and the FATO/approach light system.

6. For PinS operations with instructions to ‘proceed VFR’, the VIS should be compatible with visual flight rules.

7. The visual aids, if available, may comprise standard runway day markings, runway edge lights, threshold lights, runway end lights and approach lights as defined in Table 6.

8. For night operations or for any operation where credit for visual aids is required, the lights should be on and serviceable.

Table 4

Type of runway/FATO versus minimum RVR — helicopters

Type of runway/FATO	Minimum RVR or VIS (m)
PA runway, category I	RVR 550
NPA runway	RVR 550
Non-instrument runway	RVR 550
Instrument FATO	RVR 550
FATO	RVR or VIS 800

Table 5

DH/MDH versus minimum RVR — helicopters

DH/MDH (ft)	Facilities versus RVR (m)*
	FALS	IALS	BALS	NALS
200	550	600	700	1 000
201–249	550	650	750	1 000
250–299	600*	700*	800	1 000
300 and above	750*	800	900	1 000

*Minima on 2D approach operations should be no lower than 800 m.

APPROACH LIGHTING SYSTEMS — AEROPLANES AND HELICOPTERS

Table 6

Approach lighting systems

Class of lighting facility	Length, configuration and intensity of approach lights
FALS	CAT I lighting system (HIALS ≥720 m) distance coded centre line, barrette centre line
IALS	Simple approach lighting system (HIALS 420–719 m) single source, barrette
BALS	Any other approach lighting system (HIALS, MALS or ALS 210–419 m)
NALS	Any other approach lighting system (HIALS, MALS or ALS <210 m) or no approach lights