# Commission Regulation (EU) No 1321/2014 of 26 November 2014 on the continuing airworthiness of aircraft and aeronautical products, parts and appliances, and on the approval of organisations and personnel involved in these tasks (Recast) (Text with EEA relevance), Division M.A.401: Maintenance data

Extent: E+W+S+N.I.

(a) The person or organisation maintaining an aircraft must have access to and use only current applicable maintenance data in the performance of maintenance including modifications and repairs.
(b)For the purposes of this Part, applicable maintenance data is:
1..any applicable requirement, procedure, standard or information issued by the CAA,
2..any applicable airworthiness directive,
3..the applicable instructions for continued airworthiness and any other maintenance instructions issued by the type-certificate holder, supplementary type-certificate holder and any other organisation that publishes such data in accordance with Annex I (Part 21) to Regulation (EU) No 748/2012,
4..for components approved for installation by the design approval holder, the applicable maintenance instructions published by the component manufacturers and acceptable to the design approval holder,
5..any applicable data issued in accordance with point 145.A.45(d).
(c)The person or organisation maintaining an aircraft must ensure that all applicable maintenance data is current and readily available for use when required. The person or organisation must establish a work card or worksheet system to be used and must either transcribe accurately the maintenance data onto such work cards or worksheets or make precise reference to the particular maintenance task or tasks contained in such maintenance data.

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Source: https://www.legislation.gov.uk/eur/2014/1321/annex/I/division/1/section/A/division/subpart+d/division/m.a.401 (the official version)
Page: https://openlegislation.uk/eu-regulation-2014-1321/annex-I/division-1/section-A/division-subpart+d/division-m.a.401
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.