fatigue-critical baseline structure
EASA defines “fatigue-critical baseline structure” in one regulation. The wording below is reproduced verbatim from the EASA Easy Access Rules, with a link to the paragraph it comes from.
“fatigue-critical baseline structure” (“FCBS”) means the baseline structure of an aeroplane that is classified by the type-certificate or restricted type-certificate holder as a fatigue-critical structure;
Defined in the same article
Ask Metis where fatigue-critical baseline structure applies to you →
Metis opens with Avioverse in October 2026 · request early access.