Robuta

https://www.easa.europa.eu/en/document-library/acceptable-means-compliance-amcs-and-alternative-means-compliance-altmocs Acceptable Means of Compliance (AMC) and Alternative Means of Compliance (AltMoC) | EASA EASA | European Union Aviation Safety Agency: The European Union Authority for aviation safety acceptablemeanscomplianceamcalternative