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AMC3 SPO.OP.110 Aerodrome operating minima — aeroplanes and helicopters

ED Decision 2022/014/R

TAKE-OFF OPERATIONS

(a)General

(1)Take-off minima should be expressed as VIS or RVR limits, taking into account all relevant factors for each aerodrome planned to be used and aircraft characteristics and equipment. Where there is a specific need to see and avoid obstacles on departure and/or for a forced landing, additional conditions, e.g. ceiling, should be specified.

(2)The pilot-in-command should not commence take-off unless the weather conditions at the aerodrome of departure are equal to or better than the applicable minima for landing at that aerodrome, unless a weather-permissible take-off alternate aerodrome is available.

(3)When the reported VIS is below that required for take-off and the RVR is not reported, a take-off should only be commenced if the pilot-in-command can determine that the visibility along the take-off runway/area is equal to or better than the required minimum.

(4)When no reported VIS or RVR is available, a take-off should only be commenced if the pilot-in-command can determine that the visibility along the take-off runway/area is equal to or better than the required minimum.

(b)Visual reference

(1)The take-off minima should be selected to ensure sufficient guidance to control the aircraft in the event of both a rejected take-off in adverse circumstances and a continued take-off after failure of the critical engine.

(2)For night operations, the prescribed runway lights should be in operation to mark the runway and any obstacles.

TAKE-OFF OPERATIONS WITH HELICOPTERS AND COMPLEX MOTOR-POWERED AEROPLANES

(c)Required RVR or VIS

(1)Complex motor-powered aeroplanes

(i)For multi-engined aeroplanes with such performance that in the event of a critical engine failure at any point during take-off the aeroplane can either stop or continue the take-off to a height of 1 500 ft above the aerodrome while clearing obstacles by the required margins, the take-off minima specified by the operator should be expressed as RVR or VIS values not lower than those specified in Table 1.

(ii)Multi-engined aeroplanes without the performance to comply with the conditions in (c)(1)(i) in the event of a critical engine failure may need to reland immediately and to see and avoid obstacles in the take-off area. Such aeroplanes may be operated to the following take-off minima provided that they are able to comply with the applicable obstacle clearance criteria, assuming engine failure at the specified height:

(A)The take-off minima specified by the operator should be based upon the height from which the one-engine-inoperative (OEI) net take-off flight path can be constructed.

(B)The RVR minima used should not be lower than either of the values specified in Table 1 or Table 2.

(iii)For single-engined complex aeroplane operations, the take-off minima specified by the operator should be expressed as RVR/CMV values not lower than those specified in Table 1 below.

Unless the operator makes use of a risk period, whenever the surface in front of the runway does not allow for a safe forced landing, the RVR/CMV values should not be lower than 800 m. In this case, the proportion of the flight to be considered starts at the lift-off position and ends when the aeroplane is able to turn back and land on the runway in the opposite direction or glide to the next landing site in case of power loss.

(iv)When the RVR or the VIS is not available, the pilot-in-command should not commence take-off unless he or she can determine that the actual conditions satisfy the applicable take-off minima.

Table 1

Take-off — aeroplanes (without LVTO approval)

RVR or VIS

Facilities

RVR or VIS (m)*

Day only: Nil**

500

Day: at least runway edge lights or runway centre line markings

Night: at least runway edge lights or runway centre line lights and runway end lights

400

*The reported RVR or VIS value representative of the initial part of the take-off run can be replaced by pilot assessment.

**The pilot is able to continuously identify the take-off surface and maintain directional control.

Table 2

Take-off — aeroplanes (without an LVTO approval)

Assumed engine failure height above the take-off runway versus RVR or VIS

Assumed engine failure height
above the take-off runway (ft)

RVR or VIS (m)*

<50

400

51–100

400

101–150

400

151–200

500

201–300

1 000

>300 or if no positive take-off flight path can be constructed

1 500

*The reported RVR or VIS value representative of the initial part of the take-off run can be replaced by pilot assessment.

(2)Helicopters

(i)For helicopters having a mass where it is possible to reject the take-off and land on the FATO in case of the critical engine failure being recognised at or before the take-off decision point (TDP), the operator should specify an RVR or VIS as take-off minima in accordance with Table 3.

(ii)For all other cases, the pilot-in-command should operate to take-off minima of 800 m RVR or VIS and remain clear of cloud during the take-off manoeuvre until reaching the performance capabilities of (c)(2)(i).

(iii)For point-in-space (PinS) departures to an initial departure fix (IDF), the take-off minima should be selected to ensure sufficient guidance to see and avoid obstacles and return to the heliport if the flight cannot continue visually to the IDF.

Table 3

Take-off — helicopters (without LVTO approval)

RVR or VIS

Onshore aerodromes or operating sites with instrument flight rules (IFR) departure procedures

RVR or VIS (m)**

No light and no markings (day only)

400 or the rejected take-off distance, whichever is the greater

No markings (night)

800

Runway edge/FATO light and centre line marking

400

Runway edge/FATO light, centre line marking and relevant RVR information

400

Offshore helideck*

Two-pilot operations

400

Single-pilot operations

500

*The take-off flight path to be free of obstacles.

**On PinS departures to IDF, VIS should not be less than 800 m and ceiling should not be less than 250 ft.

AMC4 SPO.OP.110 Aerodrome operating minima — aeroplanes and helicopters

ED Decision 2022/014/R

DETERMINATION OF THE DH/MDH FOR INSTRUMENT APPROACH OPERATIONS — AEROPLANES

(a)The decision height (DH) to be used for a 3D approach operation or a 2D approach operation flown using the continuous descent final approach (CDFA) technique should not be lower than the highest of:

(1)the obstacle clearance height (OCH) for the category of aircraft;

(2)the published approach procedure DH or minimum descent height (MDH) where applicable;

(3)the system minima specified in Table 4;

(4)the minimum DH permitted for the runway specified in Table 5; or

(5)the minimum DH specified in the AFM or equivalent document, if stated.

(b)The MDH for a 2D approach operation flown not using CDFA technique should not be lower than the highest of:

(1)the OCH for the category of aircraft;

(2)the published approach procedure MDH where applicable;

(3)the system minimum specified in Table 4;

(4)the lowest MDH permitted for the runway specified in Table 5; or

(5)the lowest MDH specified in the AFM, if stated.

DETERMINATION OF THE DH/MDH FOR INSTRUMENT APPROACH OPERATIONS — HELICOPTERS

(c)The DH or MDH should not be lower than the highest of:

(1)the OCH for the category of aircraft;

(2)the published approach procedure DH or MDH where applicable;

(3)the system minima specified in Table 4;

(4)the lowest DH or MDH permitted for the runway/FATO specified in Table 6 if applicable; or

(5)the lowest DH or MDH specified in the AFM, if stated.

Table 4

System minima — all aircraft

Facility

Lowest DH/MDH (ft)

ILS/MLS/GLS

200

GNSS/SBAS (LPV)

200*

Precision approach radar (PAR)

200

GNSS/SBAS (LP)

250

GNSS (LNAV)

250

GNSS/Baro VNAV (LNAV/VNAV)

250

Helicopter PinS approach

250**

LOC with or without DME

250

SRA (terminating at ½ NM)

250

SRA (terminating at 1 NM)

300

SRA (terminating at 2 NM or more)

350

VOR

300

VOR/DME

250

NDB

350

NDB/DME

300

VDF

350

*For localiser performance with vertical guidance (LPV), a DH of 200 ft may be used only if the published final approach segment (FAS) datablock sets a vertical alert limit not exceeding 35 m. Otherwise, the DH should not be lower than 250 ft.

**For PinS approaches with instructions to ‘proceed VFR’ to an undefined or virtual destination, the DH or MDH should be with reference to the ground below the missed approach point (MAPt).

Table 5

Runway type minima — aeroplanes

Runway type

Lowest DH/MDH (ft)

Precision approach (PA) runway, category I

200

NPA runway

250

Non-instrument runway

Circling minima as shown in Table 1 in SPO.OP.112

Table 6

Type of runway/FATO versus lowest DH/MDH — helicopters

Type of runway/FATO

Lowest DH/MDH (ft)

PA runway, category I

NPA runway

Non-instrument runway

200

Instrument FATO

FATO

200

250

Table 6 does not apply to helicopter PinS approaches with instructions to ‘proceed VFR’.

AMC5 SPO.OP.110 Aerodrome operating minima — aeroplanes and helicopters

ED Decision 2022/014/R

DETERMINATION OF RVR OR VIS FOR INSTRUMENT APPROACH OPERATIONS — AEROPLANES

(a)The RVR or VIS for straight-in instrument approach operations should not be less than the greatest of the following:

(1)the minimum RVR or VIS for the type of runway used according to Table 7;

(2)the minimum RVR determined according to the MDH or DH and class of lighting facility according to Table 8; or

(3)the minimum RVR according to the visual and non-visual aids and on-board equipment used according to Table 9.

If the value determined in (1) is a VIS, then the result is a minimum VIS. In all other cases, the result is a minimum RVR.

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

(c)If the approach is flown with a level flight segment at or above the MDA/H, then 200 m should be added to the RVR calculated in accordance with (a) and (b) for Category A and B aeroplanes and 400 m for Category C and D aeroplanes.

(d)The visual aids should comprise standard runway day markings, runway edge lights, threshold lights, runway end lights and approach lights as defined in Table 8.

Table 7

Type of runway versus minimum RVR or VIS — aeroplanes

Type of runway

Minimum RVR or VIS (m)

PA runway, category I

RVR 550

NPA runway

RVR 750

Non-instrument runway

VIS according to Table 1 in SPO.OP.112 (Circling minima)

Table 8

RVR versus DH/MDH

DH or MDH (ft)

Class of lighting facility

FALS

IALS

BALS

NALS

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 9

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

Type of approach

Facilities

Lowest RVR

Multi-pilot operations

Single-pilot operations

3D operations

Final approach track offset 15o for category A and B aeroplanes or 5o for Category C and D aeroplanes

runway touchdown zone lights (RTZL) and runway centre line lights (RCLL)

No limitation

without RTZL and RCLL but using HUDLS or equivalent system; autopilot or flight director to the DH

No limitation

600 m

No RTZL and RCLL, not using HUDLS or equivalent system or autopilot to the DH

750 m

800 m

3D operations

runway touchdown zone lights (RTZL) and runway centre line lights (RCLL)

and

Final approach track offset > 15o for Category A and B aeroplanes or Final approach track offset > 5o for Category C and D aeroplanes

800 m

1 000 m

without RTZL and RCLL but using HUDLS or equivalent system; autopilot or flight director to the DH

and

Final approach track offset > 15o for Category A and B aeroplanes or Final approach track offset > 5o for Category C and D aeroplanes

800 m

1 000 m

2D operations

Final approach track offset 15o for category A and B aeroplanes or 5o for Category C and D aeroplanes

750 m

2D operations

Final approach track offset > 15o for Category A and B aeroplanes

1 000 m

1 000 m

Final approach track offset > 5o for Category C and D aeroplanes

1 200 m

1 200 m

Table 10

Approach lighting systems — aeroplanes

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

(e)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 Table 15.

(f)Where any visual or non-visual aid specified for the approach and assumed to be available in the determination of operating minima is unavailable, revised operating minima will need to be determined.

AMC6 SPO.OP.110 Aerodrome operating minima – aeroplanes and helicopters

ED Decision 2022/012/R

DETERMINATION OF RVR OR VIS FOR TYPE A INSTRUMENT APPROACH AND TYPE B CAT I INSTRUMENT APPROACH OPERATIONS — HELICOPTERS

(a)For IFR operations, the RVR or VIS should not be less than the greatest of:

(1)the minimum RVR or VIS for the type of runway/FATO used according to Table 11;

(2)the minimum RVR determined according to the MDH or DH and class of lighting facility according to Table 12; or

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

If the value determined in (1) is a VIS, then the result is a minimum VIS. In all other cases, the result is a minimum RVR.

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

(c)For Type A instrument approaches where the MAPt is within ½ NM of the landing threshold, the approach minima specified for FALS may be used regardless of the length of approach lights available. However, FATO/runway edge lights, threshold lights, end lights and FATO/runway markings are still required.

(d)An RVR of less than 800 m should not be used except when using a suitable autopilot coupled to an ILS, MLS, GLS or LPV, in which case normal minima apply.

(e)For night operations, ground lights should be available to illuminate the FATO/runway and any obstacles.

(f)The visual aids should comprise standard runway day markings, runway edge lights, threshold lights and runway end lights and approach lights as specified in Table 13.

(g)For night operations or for any operation where credit for runway and approach lights as defined in Table 13 is required, the lights should be on and serviceable except as provided for in Table 15.

Table 11

Type of runway/FATO versus minimum RVR — helicopters

Type of runway/FATO

Minimum RVR or VIS (m)

PA runway, category I

NPA runway

Non-instrument runway

RVR 550

Instrument FATO

FATO

RVR 550

RVR or VIS 800

Table 12

Onshore helicopter instrument approach minima

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.

Table 13

Approach lighting systems — helicopters

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

AMC7 SPO.OP.110 Aerodrome operating minima — aeroplanes and helicopters

ED Decision 2022/012/R

VISUAL APPROACH OPERATIONS

For a visual approach operation, the runway visual range (RVR) should not be less than 800 m.

AMC8 SPO.OP.110 Aerodrome operating minima — aeroplanes and helicopters

ED Decision 2022/012/R

CONVERSION OF VISIBILITY TO CMV — AEROPLANES

The following conditions apply to the use of CMV instead of RVR:

(a)If the reported RVR is not available, a CMV may be substituted for the RVR, except:

(1)to satisfy take-off minima; or

(2)for the purpose of continuation of an approach in LVO.

(b)If the minimum RVR for an approach is more than the maximum value assessed by the aerodrome operator, then CMV should be used.

(c)In order to determine CMV from visibility:

(1)for flight planning purposes, a factor of 1.0 should be used;

(2)for purposes other than flight planning, the conversion factors specified in Table 14 should be used.

Table 14

Conversion of reported VIS to RVR/CMV

Light elements in operation

RVR/CMV = reported VIS x

Day

Night

HI approach and runway lights

1.5

2.0

Any type of light installation other than above

1.0

1.5

No lights

1.0

not applicable

AMC9 SPO.OP.110 Aerodrome operating minima — aeroplanes and helicopters

ED Decision 2022/014/R

EFFECT ON LANDING MINIMA OF TEMPORARILY FAILED OR DOWNGRADED GROUND EQUIPMENT — COMPLEX MOTOR-POWERED AIRCRAFT

(a)General

These instructions are intended for both pre-flight and in-flight use. It is, however, not expected that the pilot-in-command would consult such instructions after passing 1 000 ft above the aerodrome. If failures of ground aids are announced at such a late stage, the approach could be continued at the pilot-in-command’s discretion. If failures are announced before such a late stage in the approach, their effect on the approach should be considered as described in Table 15 and, if considered necessary, the approach should be abandoned.

(b)Conditions applicable to Table 15:

(1)multiple failures of runway/FATO lights other than those indicated in Table 15 should not be acceptable;

(2)failures of approach and runway/FATO lights are acceptable at the same time, and the most demanding consequence should be applied; and

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

Table 15

Failed or downgraded equipment — effect on landing minima

Failed or downgraded equipment

Effect on landing minima

Type B

Type A

Navaid standby transmitter

No effect

Outer marker (ILS only)

No effect if the required height or glide path can be checked using other means,

e.g. DME fix

APV — not applicable

NPA with FAF: no effect unless used as FAF

If the FAF cannot be identified (e.g. no method available for timing of descent), NPA operations cannot be conducted

Middle marker (ILS only)

No effect

No effect unless used as MAPt

RVR Assessment Systems

No effect

Approach lights

Minima as for NALS

Approach lights except the last 210 m

Minima as for BALS

Approach lights except the last 420 m

Minima as for IALS

Standby power for approach lights

No effect

Edge lights, threshold lights and runway end lights

Day — no effect
Night — not allowed

Centre line lights

Aeroplanes: No effect if flight director (F/D), HUDLS or auto-land;
otherwise RVR 750 m

Helicopters: No effect on CAT I and SA CAT I approach operations.

No effect

Centre line lights spacing increased to 30 m

No effect

TDZ lights

Aeroplanes: No effect if F/D, HUDLS or auto-land;
otherwise RVR 750 m

Helicopters: No effect.

No effect

Taxiway lighting system

No effect

AMC10 SPO.OP.110 Aerodrome operating minima — aeroplanes and helicopters

ED Decision 2022/012/R

EFFECT ON LANDING MINIMA OF TEMPORARILY FAILED OR DOWNGRADED GROUND EQUIPMENT — OTHER-THAN COMPLEX MOTOR-POWERED AIRCRAFT

(a)Non-precision approaches requiring a final approach fix (FAF) and/or MAPt should not be conducted where a method of identifying the appropriate fix is not available.

(b)Where approach lighting is partly unavailable, minima should take account of the serviceable length of approach lighting.

GM1 SPO.OP.110 Aerodrome operating minima — aeroplanes and helicopters

ED Decision 2023/007/R

AIRCRAFT CATEGORIES

(a)Aircraft categories should be based on the indicated airspeed at threshold (VAT), which is equal to the stalling speed (VSO) multiplied by 1.3 or where published 1-g (gravity) stall speed (VS1g) multiplied by 1.23 in the landing configuration at the maximum certified landing mass. If both VSO and VS1g are available, the higher resulting VAT should be used.

(b)The aircraft categories specified in Table 16 should be used.

Table 16

Aircraft categories corresponding to VAT values

Aircraft category

VAT

A

Less than 91 kt

B

from 91 to 120 kt

C

from 121 to 140 kt

D

from 141 to 165 kt

E

from 166 to 210 kt

GM2 SPO.OP.110 Aerodrome operating minima – aeroplanes and helicopters

ED Decision 2014/018/R

CONTINUOUS DESCENT FINAL APPROACH (CDFA) — AEROPLANES

(a)Introduction

(1)Controlled flight into terrain (CFIT) is a major hazard in aviation. Most CFIT accidents occur in the final approach segment of non-precision approaches; the use of stabilised-approach criteria on a continuous descent with a constant, predetermined vertical path is seen as a major improvement in safety during the conduct of such approaches. Operators should ensure that the following techniques are adopted as widely as possible, for all approaches.

(2)The elimination of level flight segments at MDA close to the ground during approaches, and the avoidance of major changes in attitude and power/thrust close to the runway that can destabilise approaches, are seen as ways to reduce operational risks significantly.

(3)The term CDFA has been selected to cover a flight technique for any type of NPA operation.

(4)The advantages of CDFA are as follows:

(i)the technique enhances safe approach operations by the utilisation of standard operating practices;

(ii)the technique is similar to that used when flying an ILS approach, including when executing the missed approach and the associated missed approach procedure manoeuvre;

(iii)the aeroplane attitude may enable better acquisition of visual cues;

(iv)the technique may reduce pilot workload;

(v)the approach profile is fuel efficient;

(vi)the approach profile affords reduced noise levels; and

(vii)the technique affords procedural integration with APV operations.

(b)CDFA

(1)Continuous descent final approach is defined in Annex I to the Regulation on Air operations.

(2)An approach is only suitable for application of a CDFA technique when it is flown along a nominal vertical profile; a nominal vertical profile is not forming part of the approach procedure design, but can be flown as a continuous descent. The nominal vertical profile information may be published or displayed on the approach chart to the pilot by depicting the nominal slope or range/distance vs height. Approaches with a nominal vertical profile are considered to be:

(i)NDB, NDB/DME;

(ii)VOR, VOR/DME;

(iii)LOC, LOC/DME;

(iv)VDF, SRA; and

(v)GNSS/LNAV.

(3)Stabilised approach (SAp) is defined in Annex I to the Regulation on Air Operations.

(i)The control of the descent path is not the only consideration when using the CDFA technique. Control of the aeroplane’s configuration and energy is also vital to the safe conduct of an approach.

(ii)The control of the flight path, described above as one of the requirements for conducting an SAp, should not be confused with the path requirements for using the CDFA technique.

(iii)The predetermined approach slope requirements for applying the CDFA technique are established by the following:

(A)the published ‘nominal’ slope information when the approach has a nominal vertical profile; and

(B)the designated final-approach segment minimum of 3 NM, and maximum, when using timing techniques, of 8 NM.

(iv)An SAp will never have any level segment of flight at DA/H or MDA/H, as applicable. This enhances safety by mandating a prompt missed approach procedure manoeuvre at DA/H or MDA/H.

(v)An approach using the CDFA technique will always be flown as an SAp, since this is a requirement for applying CDFA. However, an SAp does not have to be flown using the CDFA technique, for example a visual approach.