What is the lowest DH/MDH for ILS/MLS/GLS approaches according to EASA regulations?

The lowest DH/MDH for ILS/MLS/GLS approaches is 200 ft.

According to EASA, what is the lowest DH/MDH for NDB approaches?

The lowest DH/MDH for NDB approaches is 350 ft.

How is the decision height (DH) determined for 3D approach operations for aeroplanes according to EASA?

The decision height (DH) should not be lower than the highest of: the obstacle clearance height (OCH), the published approach procedure DH or MDH, the system minima specified in Table 4, the minimum DH permitted for the runway specified in Table 5, or the minimum DH specified in the AFM.

What is the lowest DH/MDH for a precision approach (PA) runway, category I, for aeroplanes according to EASA?

The lowest DH/MDH for a precision approach (PA) runway, category I, is 200 ft.

What factors determine the minimum descent height (MDH) for a 2D approach operation flown without CDFA for aeroplanes according to EASA?

The MDH should not be lower than the highest of: the OCH, the published approach procedure MDH, the system minima specified in Table 4, the lowest MDH permitted for the runway specified in Table 5, or the lowest MDH specified in the AFM.

What is the lowest DH/MDH for a non-instrument runway for aeroplanes according to EASA?

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

AMC4 NCC.OP.110 Aerodrome operating minima -- general

Q: What are the minimum DH/MDH requirements for GNSS/SBAS (LPV) approaches under EASA regulations?

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.

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AMC4 NCC.OP.110 Aerodrome operating minima — general

ED Decision 2022/012/R

DETERMINATION OF 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 the 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 minima 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 DH/MDH FOR INSTRUMENT APPROACH OPERATIONS — HELICOPTERS

(1) the OCH for the category of aircraft used;

(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 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 NCC.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’.

Details

Source-Title: AMC4 NCC.OP.110 Aerodrome operating minima -- general View latest amendments

Erulesid: ERULES-1963177438-13504 Compare versions

Domain: Air operations

Applicabilitydate: 30 October, 2022

Entryintoforcedate: 1 July, 2022

Regulatorysource: ED Decision 2022/012/R Navigate

Regulatorysubject: Part-NCC

Typeofcontent: AMC to IR (Acceptable means of compliance to implementing rule)

Parentir: NCC.OP.110 Aerodrome operating minima -- general

Origin: EASA

Category: EAR