AMC1 21.A.307(b)(3) and (b)(4) Verification activities to be conducted on the part or appliance or release documentation prior to installation

• ED Decision 2021/007/R found in: Initial Airworthiness and Environmental Protection (748/2012) Part-21 Part-21L (Jul 2024)

AMC1 21.A.307(b)(3) and (b)(4) Verification activities to be conducted on the part or appliance or release documentation prior to installation ED Decision 2021/007/R To prevent a non-negligible safety effect on the product, due to the installation of a part or appliance referred to in point [21.A.307](#_DxCrossRefBm1649097401)(b)(3) and (b)(4) that could potentially not conform to its design, the design approval holder (DAH) or EASA may identify in the ICA (in the case of [21.A.307](#_DxCrossRefBm1649097401)(b)(3)) or in CS‑STAN (in the case of [21.A.307](#_DxCrossRefBm1649097401)(b)(4)) any specific verification activities to be conducted by the installer on the part or appliance before installing it on the product in accordance with [Regulation (EU) No 1321/2014](https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A32014R1321&qid=1631282130548). When assessing the safety effect of a part or appliance identified in point [21.A.307](#_DxCrossRefBm1649097401)(b)(3) and (b)(4), the DAH or EASA should assume that the installer would conduct, in accordance with [Regulation (EU) No 1321/2014](https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A32014R1321&qid=1631282130548), any specific verification activities on the part or appliance or release documentation, as identified in the ICA or in CS-STAN. Example: Information from the DAH contained in the ICA: ‘Part XXX-YY must comply with flammability requirement JJJ-KKK’. ##### AMC1 21.A.307(b)(3) and (b)(4) Verification activities to be conducted on the part or appliance or release documentation prior to installation *ED Decision 2021/007/R* To prevent a non-negligible safety effect on the product, due to the installation of a part or appliance referred to in point [21.A.307](#_DxCrossRefBm485230893)(b)(3) and (b)(4) that could potentially not conform to its design, the design approval holder (DAH) or EASA may identify in the ICA (in the case of [21.A.307](#_DxCrossRefBm485230893)(b)(3)) or in CS‑STAN (in the case of [21.A.307](#_DxCrossRefBm485230893)(b)(4)) any specific verification activities to be conducted by the installer on the part or appliance before installing it on the product in accordance with [Regulation (EU) No 1321/2014](https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A32014R1321&qid=1631282130548). When assessing the safety effect of a part or appliance identified in point [21.A.307](#_DxCrossRefBm485230893)(b)(3) and (b)(4), the DAH or EASA should assume that the installer would conduct, in accordance with [Regulation (EU) No 1321/2014](https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A32014R1321&qid=1631282130548), any specific verification activities on the part or appliance or release documentation, as identified in the ICA or in CS-STAN. Example: Information from the DAH contained in the ICA: ‘Part XXX-YY must comply with flammability requirement JJJ-KKK’.