Substantiated sea conditions

EASA defines “Substantiated sea conditions” in one regulation. The wording below is reproduced verbatim from the EASA Easy Access Rules, with a link to the paragraph it comes from.

“Substantiated sea conditions” means those sea conditions which were selected by the applicant for a type certificate or supplemental type certificate against which the resistance of the rotorcraft to capsize has been demonstrated and subsequently certified for ditching or emergency flotation provisions.

Article 2 · Additional Airworthiness Specifications · Regulation (EU) 2015/640 · Easy Access Rules, 20 Mar 2026 revision · Read Article 2

Defined in the same article

airworthiness limitation section
baseline structure
corrosion prevention and control programme
damage tolerance evaluation
damage tolerance inspection
fatigue-critical baseline structure
fatigue-critical modified structure
fatigue-critical structure

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