AMC5 CAT.OP.MPA.110 Aerodrome operating minima    

CAA ORS9 Decision No. 1

DETERMINATION OF RVR/CMV/VIS MINIMA FOR NPA, APV, CAT I — AEROPLANES

(a) Aeroplanes

The RVR/CMV/VIS minima for NPA, APV and CAT I operations should be determined as follows:

(1) The minimum RVR/CMV/VIS should be the highest of the values specified in Table 5 or Table 6.A, but not greater than the maximum values specified in Table 6.A, where applicable.

(2) The values in Table 5 should be derived from the formula below,

Required RVR/VIS (m) = [(DH/MDH (ft) x 0.3048)/tanα] — length of approach lights (m)

where α is the calculation angle, being a default value of 3.00° increasing in steps of 0.10° for each line in Table 5 up to 3.77° and then remaining constant.

(3) If the approach is flown with a level flight segment at or above MDA/H, 200 m should be added for category A and B aeroplanes and 400 m for category C and D aeroplanes to the minimum RVR/CMV/VIS value resulting from the application of Tables 5 and 6.A.

(4) An RVR of less than 750 m as indicated in Table 5 may be used:

(i) for CAT I operations to runways with full approach lighting system (FALS), runway touchdown zone lights (RTZL) and runway centreline lights (RCLL);

(ii) for CAT I operations to runways without RTZL and RCLL when using an approved head-up guidance landing system (HUDLS), or equivalent approved system, or when conducting a coupled approach or flight-director-flown approach to a DH. The ILS should not be published as a restricted facility; and

(iii) for APV operations to runways with FALS, RTZL and RCLL when using an approved head-up display (HUD).

(5) Lower values than those specified in Table 5, for HUDLS and auto-land operations may be used if approved in accordance with Annex V (Part-SPA), Subpart E (SPA.LVO).

(6) The visual aids should comprise standard runway day markings and approach and runway lights as specified in Table 4. The CAA may approve that RVR values relevant to a basic approach lighting system (BALS) are used on runways where the approach lights are restricted in length below 210 m due to terrain or water, but where at least one cross-bar is available.

(7) For night operations or for any operation where credit for runway and approach lights is required, the lights should be on and serviceable except as provided for in Table 9.

(8) For single-pilot operations, the minimum RVR/VIS should be calculated in accordance with the following additional criteria:

(i) an RVR of less than 800 m as indicated in Table 5 may be used for CAT I approaches provided any of the following is used at least down to the applicable DH:

(A) a suitable autopilot, coupled to an ILS, MLS or GLS that is not published as restricted; or

(B) an approved HUDLS, including, where appropriate, enhanced vision system (EVS), or equivalent approved system;

(ii) where RTZL and/or RCLL are not available, the minimum RVR/CMV should not be less than 600 m; and

(iii) an RVR of less than 800 m as indicated in Table 5 may be used for APV operations to runways with FALS, RTZL and RCLL when using an approved HUDLS, or equivalent approved system, or when conducting a coupled approach to a DH equal to or greater than 250 ft.

Table 4

Approach lighting systems

Class of lighting facility	Length, configuration and intensity of approach lights
FALS	CAT I lighting system (HIALS ≥720 m) distance coded centreline, Barrette centreline
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

Note: HIALS: high intensity approach lighting system; MALS: medium intensity approach lighting system.

Table 5

RVR/CMV vs DH/MDH

DH or MDH			Class of lighting facility
ft
			FALS	IALS	BALS	NALS
			See (a)(4),(5),(8) above for RVR <750/800 m
			RVR/CMV (m)
200	-	210	550	750	1000	1200
211	-	220	550	800	1000	1200
221	-	230	550	800	1000	1200
231	-	240	550	800	1000	1200
241	-	250	550	800	1000	1300
251	-	260	600	800	1100	1300
261	-	280	600	900	1100	1300
281	-	300	650	900	1200	1400
301	-	320	700	1000	1200	1400
321	-	340	800	1100	1300	1500
341	-	360	900	1200	1400	1600
361	-	380	1000	1300	1500	1700
381	-	400	1100	1400	1600	1800
401	-	420	1200	1500	1700	1900
421	-	440	1300	1600	1800	2000
441	-	460	1400	1700	1900	2100
461	-	480	1500	1800	2000	2200
481		500	1500	1800	2100	2300
501	-	520	1600	1900	2100	2400
521	-	540	1700	2000	2200	2400
541	-	560	1800	2100	2300	2500
561	-	580	1900	2200	2400	2600
581	-	600	2000	2300	2500	2700
601	-	620	2100	2400	2600	2800
621	-	640	2200	2500	2700	2900
641	-	660	2300	2600	2800	3000
661	-	680	2400	2700	2900	3100
681	-	700	2500	2800	3000	3200
701	-	720	2600	2900	3100	3300
721	-	740	2700	3000	3200	3400
741	-	760	2700	3000	3300	3500
761	-	800	2900	3200	3400	3600
801	-	850	3100	3400	3600	3800
851	-	900	3300	3600	3800	4000
901	-	950	3600	3900	4100	4300
951	-	1000	3800	4100	4300	4500
1001	-	1100	4100	4400	4600	4900
1101	-	1200	4600	4900	5000	5000
1201 and above			5000	5000	5000	5000

 

Table 6.A

CAT I, APV, NPA — aeroplanes

Minimum and maximum applicable RVR/CMV (lower and upper cut-off limits)

Facility/conditions	RVR/CMV (m)	Aeroplane category
		A	B	C	D
ILS, MLS, GLS, PAR, GNSS/SBAS, GNSS/VNAV	Min	According to Table 5
	Max	1 500	1 500	2 400	2 400
NDB, NDB/DME, VOR, VOR/DME, LOC, LOC/DME, VDF, SRA, GNSS/LNAV with a procedure that fulfils the criteria in AMC4 CAT.OP.MPA.110, (a)(1)(ii)	Min	750	750	750	750
	Max	1 500	1 500	2 400	2 400
For NDB, NDB/DME, VOR, VOR/DME, LOC, LOC/DME, VDF, SRA, GNSS/LNAV: — not fulfilling the criteria in in AMC4 CAT.OP.MPA.110, (a)(1)(ii), or — with a DH or MDH ≥1 200 ft	Min	1 000	1 000	1 200	1 200
	Max	According to Table 5, if flown using the CDFA technique, otherwise an add-on of 200 m for Category A and B aeroplanes and 400 m for Category C and D aeroplanes applies to the values in Table 5 but not to result in a value exceeding 5 000 m.