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List of abbreviations

Certification Specifications and Guidance Material for Heliport Design (CS-HPT-DSN) — Issue 1 · Regulation (EU) No 139/2014 · EAR revision 13 Mar 2026

IRImplementing rule

List of abbreviations

(used in CS-HPT-DSN)

ASPSLarrays of segmented point source lighting
APAPIabbreviated precision approach path indicator
CS-ADR-DSNcertification specifications for aerodromes design
FATOfinal approach and take-off area
HAPIhelicopter approach path indicator
HFMhelicopter (aircraft) flight manual
LDAHlanding distance available (helicopters)
LPluminescent panel
MTOMmaximum take-off mass
PAPIprecision approach path indicator
RTODAHrejected take-off distance available (helicopters)
TLOFtouchdown and lift-off area
TODAHtake-off distance available (helicopters)
UCWundercarriage width

IR — Regulation (EU) No 139/2014 · ED Decision 2019/012/R · Aerodromes Easy Access Rules · EAR revision 13 Mar 2026

All rules in Powers and recitals

Consolidated from the EASA Easy Access Rules (revision 13 Mar 2026, extracted 17 Aug 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.

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