FAQ n.127765

Point 26.331: Shall a compliance plan be submitted to EASA by STC holders that do not hold structures in their DOA Scope of Work; and only owns STCs that are cabin related and do not introduce fatigue-critical modified structure (FCMS)?


If the STC does not affect the Fatigue Critical Baseline Structure (FCBS) and does not introduce the Fatigue Critical Modified Structure (FCMS), the STCH would not be affected by ageing aircraft requirements introduced in Part-26. However, it should be considered that sometimes interior changes may affect the FCBS, for instance introduction of a galley, or of a large portable water tank, that does not use existing TCH or otherwise approved attachment points for which the allowable loads are known. 

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