IAA Website - Friday, April 3, 2020 1:20 AM

Electronic Air Navigation Obstacle Data Sets

The coverage areas for the sets of electronic air navigation obstacle data shall be specified as

Area 1: Obstacles (whose height above the ground is 100m or higher, affecting air navigation) within the entire territory of EISN FIR.

Area 2: Obstacles within the vicinity of an aerodrome that are assessed as being a hazard to air navigation.

Area 3: Obstacles within the area bordering an aerodrome movement area that extends horizontally from the edge of a runway to 90 m from the runway centre line and 50 m from the edge of all other parts of the aerodrome movement area.

Area 4: Obstacles within the area extending 900m prior to the runway threshold and 60m each side of the extended centreline in the direction of the approach on a precision approach runway, Category II or III.

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