6.  
In the case of commercial air transport or large aircraft, development of the approved operator’s maintenance programme is dependent upon sufficient satisfactory in-serv-ice experience which has been properly processed. In general, the task being consid-ered for escalation beyond the MRB limits should have been satisfactorily repeated at the existing frequency several times before being proposed for escalation. Appendix I to AMC M.A.302 and M.B.301 (b) gives further information.

7.  
The competent authority may approve an incomplete maintenance programme at the start of operation of an aircraft or an operator, subject to limiting the approval of the maintenance programme to a period that does not exceed any required main-tenance not yet approved.

8.  
If the competent authority is no longer satisfied that a safe operation can be main-tained, the approval of a maintenance programme or part of it may be suspended or revoked. Events giving rise to such action include:

8.1 An operator changing the utilisation of an aircraft;
8.2 The owner or M.A. Subpart G approved organisation has failed to ensure that the programme reflects the maintenance needs of the aircraft such that safe opera-tion can be assured.
*  see Appendices to Part M – Appendix I to AMC M.A.302 and AMC M.B.301(b)
ED 2008/013/R
Section B
PART-M
Subpart C

ED 2010/002/R  ED 2010/002/R
AMC M.B.301 (c) Maintenance Programme
1.  
Approval of an aircraft maintenance programme through a procedure established by a M.A. Subpart G organisation should require the organisation to demonstrate to the competent authority that it has competence, procedures and record keeping provi-sions, which will enable the organisation to analyse aircraft reliability, TC holder’s instructions, and other related operating and maintenance criteria.

2.  
According to the complexity of the aircraft and the nature of the operation, the maintenance programme procedures should contain reliability centred maintenance and condition monitored maintenance programme procedures and have procedures relating to the programme control which contain the following provisions:

(a)
task escalation or adjustment,

(b)
maintenance programme review,

(c)  
SB or Service Information assessment,

(d)
component and structures in service performance review,

(e)
maintenance programme revision,

(f)  
maintenance procedure effectiveness review and amendment,

(g)
maintenance review board report (MRBR) or manufacturer maintenance plan-ning document (MPD) review and assessment, as appropriate,

(h)
AD review and assessment,

(i)  
owner/maintenance/M.A. Subpart G organisation liaison,

(j)  
training.

3.  
When the competent authority requests, the organisation should make provision for the attendance a competent authority representative at meetings held to consider maintenance implications arising from reviews of the above provisions.

AMC M.B.301 (d) Maintenance programme
Programmes and all associated airworthiness data, including that data used for substantiating the escalation of programmes should be made available to the competent authority upon request.

ED 2008/013/R
AMC M.B.303 Aircraft continuing airworthiness monitoring
The competent authority may create an adapted airworthiness survey programme for the aircraft for which it performs the airworthiness review.
AMC M.B.303 (b) Aircraft continuing airworthiness monitoring (*)
1.  Sample product surveys of aircraft include:
(a). in depth surveys carried out during extensive maintenance that fully encompass selected aspects of an aircraft’s airworthiness
(b). ramp surveys carried out during aircraft operations to monitor the apparent con-dition of an aircraft’s airworthiness.
　
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