To which area do the specifications in paragraph (b) of CS ADR-DSN.J.487 apply?

The specifications in paragraph (b) apply only to the area under control of the aerodrome operator.

Under CS ADR-DSN.J.487, what condition must be met for an object beyond the obstacle limitation surfaces to be excluded from being regarded as an obstacle even if it reaches 150 m or more above ground?

A safety assessment must indicate that the object does not constitute a hazard to aeroplanes.

CS ADR-DSN.J.487 Objects outside the obstacle limitation surfaces

Q: What is the height threshold above ground elevation for objects beyond the obstacle limitation surfaces to be regarded as obstacles, unless a safety assessment shows otherwise?

At least those objects which extend to a height of 150 m or more above ground elevation should be regarded as obstacles, unless a safety assessment indicates that they do not constitute a hazard to aeroplanes.

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CS ADR-DSN.J.487 Objects outside the obstacle limitation surfaces

ED Decision 2016/027/R

(a) Applicability: The specifications in paragraph (b) below apply only to the area under control of the aerodrome operator.

(b) In areas beyond the limits of the obstacle limitation surfaces, at least those objects which extend to a height of 150 m or more above ground elevation should be regarded as obstacles, unless a safety assessment indicates that they do not constitute a hazard to aeroplanes.

[Issue: ADR-DSN/3]

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Source-Title: CS ADR-DSN.J.487 Objects outside the obstacle limitation surfaces View latest amendments

Erulesid: ERULES-1963177438-2241 Compare versions

Domain: Aerodromes

Activitytype: Aerodrome operations, Aerodrome design, Manufacturing

Amendedby: CS Issue 3

Applicabilitydate: 15 December, 2016

Entryintoforcedate: 14 December, 2016

Icaoreference: Annex 14, Volume I

Regulatedentity: Aerodrome operator, Aerodrome design organisation, Aerodrome equipment manufacturer

Regulatorysource: ED Decision 2016/027/R Navigate

Regulatorysubject: CS-ADR-DSN

Technicalsubjectmatter: Obstacle limitation surfaces/requirements

Typeofcontent: CS (Certification specification)

Easacategory: Non-instrument runway, Non-precision approach runway, Precision approach runway Category I, Precision approach runway Category II, Precision approach runway Category III, Take-off runway

Origin: EASA

Category: EAR

CS ADR-DSN.J.487 Objects outside the obstacle limitation surfaces

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