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Final Approach Segment (FAS) Data Block (GA281)

DGIF baseline 2026-1, the latest. Earlier baselines: timemap.

RDF: ga281.ttl

Name

FinalApproachSegDataBlock

Kind

Type

Definition

A set of parameters used to define two specific geometric locations used as navigational points for aircraft utilizing precision Area Navigation (RNAV) approach procedures to land an aircraft in adverse approach conditions.

Accepted

2013-10-18

Attributes

• ARD Approach Performance Designator — multiplicity 0..1; datatype CharacterStringMeta
• CYR Cyclic Redundancy Check Value — multiplicity 0..1; datatype CharacterStringMeta
• FOL Flight Path Alignment Point Offset Length — multiplicity 0..1; datatype MeasureMeta
• GSA Glide Slope Angle — multiplicity 0..1; datatype AngleMeasureMeta
• HLI Horizontal Alarm Limit — multiplicity 0..1; datatype MeasureMeta
• RFP Reference Path Identifier — multiplicity 0..1; datatype CharacterStringMeta
• RSD Reference Station Data Selector — multiplicity 0..1; datatype CharacterStringMeta
• SVP Satellite Based Augmentation System (SBAS) Service Provider — multiplicity 0..1; datatype CharacterStringMeta
• TCW Threshold Course Width — multiplicity 0..1; datatype MeasureMeta
• TCH Threshold Crossing Height (TCH) — multiplicity 0..1; datatype MeasureMeta
• VLI Vertical Alarm Limit — multiplicity 0..1; datatype MeasureMeta

Associations

• FasDataBlockDesignatedPoint1 → GA058 Aviation Designated Point ()
• FasDataBlockDesignatedPoint2 → GA058 Aviation Designated Point ()
• FinalApproachSegmentFasDataBlock → GA280 Final Approach Segment (FAS) ()

RWOI terms naming it

• RWO_01234 Final Approach Segment (FAS) Data Block

Source: DGIF 2026-1 QEA model, DGIWG. Standard: DGIWG 206-3. Licence: CC BY 4.0, © DGIWG.