What is the minimum DH/MDH for a Category I precision approach runway according to EASA?

The lowest DH/MDH for a Category I precision approach runway is 200 ft.

What factors determine the minimum decision height (DH) for a 3D approach under EASA rules?

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, the minimum DH permitted for the runway, or the minimum DH specified in the aircraft flight manual (AFM).

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

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

AMC3 CAT.OP.MPA.110 Aerodrome operating minima

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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 aircraft flight manual (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.

Table 4

System minima — aeroplanes

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
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 FAS datablock sets a vertical alert limit not exceeding 35 m. Otherwise, the DH should not be lower than 250 ft.

Table 5

Runway type minima — aeroplanes

Runway type		Lowest DH/MDH (ft)
Instrument runway	Precision approach (PA) runway, category I	200
Instrument runway	NPA runway	250
Non-Instrument runway	Non-instrument runway	Circling minima as shown in Table 15

(c) Where a barometric DA/H or MDA/H is used, this should be adjusted where the ambient temperature is significantly below international standard atmosphere (ISA). GM8 CAT.OP.MPA.110 ‘Low temperature correction’ provides a cold temperature correction table for adjustment of minimum promulgated heights/altitudes.

Details

Source-Title: AMC3 CAT.OP.MPA.110 Aerodrome operating minima View latest amendments

Erulesid: ERULES-1963177438-12489 Compare versions

Domain: Air operations

Applicabilitydate: 30 October, 2022

Entryintoforcedate: 1 July, 2022

Regulatorysource: ED Decision 2022/012/R Navigate

Regulatorysubject: Part-CAT

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

Parentir: CAT.OP.MPA.110 Aerodrome operating minima

Origin: EASA

Category: EAR