Page 28 - UK Continuing Airworthiness Regulations (Consolidated) 201121

ANNEX I - Continuing Airworthiness Requirements

(iv) details of the eventual rectification carried out and its CRS or a clear cross-reference
back to the document that contains details of the eventual rectification.
Section 5 should contain any necessary maintenance support information that the aircraft
commander needs to know. Such information would include data on how to contact maintenance if
problems arise whilst operating the routes etc.
M.A.306(b) AMC Aircraft technical log system
The aircraft technical log system can be either a paper or computer system or any combination of
both methods acceptable to the CAA.
In case of a computer system, it should contain programme safeguards against the ability of
unauthorised personnel to alter the database.
M.A.307 Transfer of aircraft continuing airworthiness records Regulation (EU) No
(a) When an aircraft is permanently transferred from one owner or operator to another, the
transferring owner or operator shall ensure that the continuing airworthiness records
referred to in point M.A.305 and, if applicable the technical log system referred to in point
M.A.306, are also transferred.
(b) When the owner contracts the continuing airworthiness management tasks to a CAMO or
CAO, the owner shall ensure that the continuing airworthiness records referred to in point
M.A.305 are transferred to that contracted organisation.
(c) The time periods for the retention of records set out in point (e) of point M.A.305 shall
continue to apply to the new owner, operator, CAMO or CAO.
M.A.307(a) AMC Transfer of aircraft continuing airworthiness records
Where an owner/operator terminates his operation, all retained continuing airworthiness records
should be passed on to the new owner/operator or stored.
A ‘permanent transfer’ does not generally include the dry lease-out of an aircraft when the duration of
the lease agreement is less than 6 months. However the CAA should be satisfied that all continuing
airworthiness records necessary for the duration of the lease agreement are transferred to the lessee
or made accessible to them.
Section A Subpart D Maintenance Standards

Reference Description
M.A.401 Maintenance data
(a) The person or organisation maintaining an aircraft shall have access to and use only
applicable current 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. applicable instructions for continuing airworthiness, issued by type certificate
holders, supplementary type certificate holders and any other organisation that
publishes such data in accordance with Annex I (Part-21) to Regulation (EU) No
748/2012.
4. any applicable data issued in accordance with point 145.A.45(d).
(c) The person or organisation maintaining an aircraft shall ensure that all applicable
maintenance data is current and readily available for use when required. The person or
organisation shall establish a work card or worksheet system to be used and shall 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.
M.A.401(b) AMC Maintenance data
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.
20 November 2021 28 of 412