AMC1 21.A.7(a) Instructions for Continued Airworthiness content

CAA ORS9 Decision No. 48

  1. The instructions for continued airworthiness (ICA) should identify the following, in accordance with the applicable certification specifications:

    1. any limitations that are necessary for the continued airworthiness of the product or article;

    2. the means to determine when the product or article has deteriorated to the extent that it is no longer airworthy;

    3. the minimum actions required to restore the airworthiness of the product or article before the limitations (as per point (1)) have been exceeded or before their deterioration (as per point (2)), as an alternative to the withdrawal of the product or article from service.

    4. the identification of standard parts and parts with a negligible safety effect in accordance with 21.A.307(b)(1) and (b)(3).

  2. The ICA should, therefore, include, in accordance with the applicable certification specifications:

    1. any limitations determined through the certification of the product or article, and instructions on how to determine that the limitations have been exceeded;

    2. any inspection, servicing or maintenance actions determined to be necessary by the certification process;

    3. any inspection or troubleshooting actions determined to be necessary to establish the nature of faults and the necessary remedial actions;

    4. sufficient general information on the operation of the product or article to enable the understanding of the instructions in (a)(1) to (a)(3) above.