AMC M.A.401(b) Maintenance data
CAA ORS9 Decision No. 1
1. Except as specified in sub-paragraph 2, each person or organisation performing aircraft maintenance should have access to and use:
(a) the regulations on continuing airworthiness of aircraft, associated AMC and GM;
(b) all applicable maintenance requirements and notices such as CAA standards and specifications that have not been superseded by a requirement, procedure or directive;
(c) all applicable ADs;
(d) the appropriate sections of the aircraft maintenance programme, aircraft maintenance manual, repair manual, supplementary structural inspection document, corrosion control document, service bulletins, service sheets modification leaflets, non-destructive inspection manual, parts catalogue, type certificate data sheets as required for the work undertaken and any other specific document issued by the type certificate or supplementary type certificate holder’s maintenance data, except that in the case of operator or customer provided maintenance data it is not necessary to hold such provided data when the work order is completed.
2. In addition to sub-paragraph 1, for components each organisation performing aircraft maintenance should hold and use the appropriate sections of the vendor maintenance and repair manual, service bulletins and service letters plus any document issued by the type certificate holder as maintenance data on whose product the component may be fitted when applicable, except that in the case of operator or customer provided maintenance data it is not necessary to hold such provided data when the work order is completed.