What is the lowest allowed DH for a 3D approach operation using an ILS approach?

The lowest allowed DH for an ILS approach is 200 ft, as specified in Table 1 of NCO.OP.111.

What is the system minimum DH/MDH for a GNSS/SBAS (LP) approach?

The system minimum for GNSS/SBAS (LP) is 250 ft, as listed in Table 1.

Which approach facilities have a system minimum of 350 ft?

SRA terminating at 2 NM or more, NDB, and VDF have a system minimum of 350 ft, according to Table 1.

What is the system minimum for a VOR/DME approach?

The system minimum for VOR/DME is 250 ft, as per Table 1.

For a 2D approach without CDFA, is the published approach procedure MDH always a binding lower limit?

The published approach procedure MDH is a binding lower limit only where applicable, as stated in paragraph (b)(2).

What is the lowest DH/MDH for a helicopter point-in-space approach?

The system minimum for a helicopter point-in-space approach is 250 ft, according to Table 1.

Which regulation establishes the aerodrome operating minima for 2D and 3D approach operations under NCO?

Regulation (EU) 2021/2237 establishes the rules in NCO.OP.111.

For a 3D approach, what is the minimum DH for a GNSS/Baro-VNAV (LNAV/VNAV) approach?

The system minimum for GNSS/Baro-VNAV (LNAV/VNAV) is 250 ft, as per Table 1.

What is the system minimum for a precision approach radar (PAR) approach?

The system minimum for PAR is 200 ft, as listed in Table 1.

How does the OCH factor into the determination of DH for a 3D approach?

The DH must not be lower than the OCH for the category of aircraft, as stated in paragraph (a)(1).

What is the system minimum for an SRA terminating at 1 NM?

The system minimum for SRA terminating at 1 NM is 300 ft, according to Table 1.

For a 2D approach without CDFA, what is the minimum MDH for an NDB/DME approach?

The system minimum for NDB/DME is 300 ft, as per Table 1.

What is the system minimum for a LOC approach with or without DME?

The system minimum for LOC with or without DME is 250 ft, as listed in Table 1.

Which paragraph of NCO.OP.111 applies to 2D approach operations flown with the CDFA technique?

Paragraph (a) applies to 2D approach operations flown with the CDFA technique, as it sets the DH for such operations.

What is the system minimum for a VOR approach?

The system minimum for VOR is 300 ft, according to Table 1.

For a 3D approach, what is the minimum DH for an ILS/MLS/GLS approach?

The system minimum for ILS/MLS/GLS is 200 ft, as per Table 1.

What is the system minimum for a GNSS (LNAV) approach?

The system minimum for GNSS (LNAV) is 250 ft, as listed in Table 1.

What is the system minimum for an SRA terminating at ½ NM?

The system minimum for SRA terminating at ½ NM is 250 ft, according to Table 1.

NCO.OP.111 Aerodrome operating minima -- 2D and 3D approach operations

Q: For a 2D approach flown without the CDFA technique, which values must be considered to determine the minimum MDH?

The MDH must not be lower than the highest of: (1) the OCH for the aircraft category, (2) the published approach procedure MDH (where applicable), (3) the system minimum in Table 1, or (4) the minimum MDH specified in the AFM (if stated).

Q: When determining the DH for a 3D approach, what is the role of the AFM?

The DH must not be lower than the minimum DH specified in the AFM or equivalent document, if stated, as one of the four criteria in paragraph (a).

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NCO.OP.111 Aerodrome operating minima — 2D and 3D approach operations

Regulation (EU) 2021/2237

(a) The decision height (DH) to be used for a 3D approach operation or a 2D approach operation flown with the continuous descent final approach (CDFA) technique shall 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 minimum specified in Table 1;

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

(b) The MDH for a 2D approach operation flown without the CDFA technique shall 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 1; or

(4) the minimum MDH specified in the AFM, if stated.

Table 1

System minima

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 point-in-space 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

Details

Source-Title: NCO.OP.111 Aerodrome operating minima -- 2D and 3D approach operations View latest amendments

Erulesid: ERULES-1963177438-13566 Compare versions

Domain: Air operations

Applicabilitydate: 30 October, 2022

Entryintoforcedate: 5 January, 2022

Regulatorysource: Regulation (EU) 2021/2237 Navigate

Regulatorysubject: Part-NCO

Typeofcontent: IR (Implementing rule)

Origin: EASA

Category: EAR

NCO.OP.111 Aerodrome operating minima — 2D and 3D approach operations

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