For an RNP APCH to LNAV/VNAV minima to be acceptable as a non-SBAS instrument approach under NCO.OP.142(b)(4), what equipment condition must be met?

The aircraft must be equipped with a Baro VNAV function certified for APV.

GM1 NCO.OP.142(b)(4) Destination alternate aerodromes -- instrument approach operations

Q: What types of instrument approach procedures are acceptable for destination alternate aerodromes under NCO.OP.142(b)(4) when they do not rely on SBAS?

The instrument approach can be an RNP APCH to LNAV minima, or an RNP APCH to LNAV/VNAV minima using Baro VNAV if the aircraft is equipped with a Baro VNAV function certified for APV.

Q: If SBAS is available at the destination alternate aerodrome, does NCO.OP.142(b)(4) prevent the pilot from flying an approach that relies on SBAS?

No, it does not prevent the pilot from flying an approach relying on SBAS if SBAS is available.

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GM1 NCO.OP.142(b)(4) Destination alternate aerodromes — instrument approach operations

ED Decision 2022/012/R

IAPs THAT DO NOT RELY ON SBAS

This instrument approach can be an RNP APCH to LNAV minima. It can also be an RNP APCH to LNAV/VNAV minima using Baro VNAV if the aircraft is equipped with a Baro VNAV function certified for APV.

This requirement is only used for planning purposes to cover the possibility of an SBAS loss; it does not prevent the pilot from flying an approach relying on SBAS if SBAS is available.

Details

Source-Title: GM1 NCO.OP.142(b)(4) Destination alternate aerodromes -- instrument approach operations View latest amendments

Erulesid: ERULES-1963177438-19715 Compare versions

Domain: Air operations

Applicabilitydate: 30 October, 2022

Entryintoforcedate: 1 July, 2022

Regulatorysource: ED Decision 2022/012/R Navigate

Regulatorysubject: Part-NCO

Typeofcontent: GM to IR (Guidance material to implementing rule)

Parentir: NCO.OP.142 Destination alternate aerodromes -- instrument approach operations

Origin: EASA

Category: EAR