CONTINUING AIRWORTHINESS REQUIREMENTS – PART M 2(46)

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6.5.6.2  Analysis and Interpretation.
The procedures for analysis and interpretation of information should be such as to enable the performance of the items control-led by the programme to be measured; they should also facilitate recognition, diagnosis and recording of significant problems. The whole process should be such as to enable a critical assessment to be made of the effectiveness of the programme as a total activ-ity. Such a process may involve:
(a)  
Comparisons of operational reliability with established or allocated standards (in the initial period these could be obtained from in-service experience of similar equipment of aircraft types).

(b)  
Analysis and interpretation of trends.

(c)  
The evaluation of repetitive defects.

(d)  
Confidence testing of expected and achieved results.

(e)  
Studies of life-bands and survival characteristics.

(f)  
Reliability predictions.

(g)  
Other methods of assessment.

6.5.6.3  The range and depth of engineering analysis and interpreta-tion should be related to the particular programme and to the facilities available. The following, at least, should be taken into account:
(a)  
Flight defects and reductions in operational reliability.

(b)  
Defects occurring on-line and at main base.

(c)  
Deterioration observed during routine maintenance.

(d)  
Workshop and overhaul facility findings.

(e)  
Modification evaluations.

(f)  
Sampling programmes.

(g)  
The adequacy of maintenance equipment and publications.

(h)  
The effectiveness of maintenance procedures.

(i)  
Staff training.

(j)  
Service bulletins, technical instructions, etc.

6.5.6.4  Where the M.A.Subpart G organisation relies upon contracted maintenance and/or overhaul facilities as an information input to the programme, the arrangements for availability and continuity of such information should be established and details should be included.
6.5.7 Corrective Actions.
6.5.7.1  The procedures and time scales both for implementing correc-tive actions and for monitoring the effects of corrective actions should be fully described. Corrective actions shall correct any reduction in reliability revealed by the programme and could take the form of:
(a)  
Changes to maintenance, operational procedures or tech-niques.

(b)  
Maintenance changes involving inspection frequency and content, function checks, overhaul requirements and time limits, which will require amendment of the scheduled maintenance periods or tasks in the approved maintenance programme. This may include escalation or de-escalation of tasks, addition, modification or deletion of tasks.

(c)  
Amendments to approved manuals (e.g. maintenance manu-al, crew manual).

(d)  
Initiation of modifications.

(e)  
Special inspections of fleet campaigns.

(f)  
Spares provisioning.

(g)  
Staff training.

(h)  
Manpower and equipment planning.

Note: Some of the above corrective actions may need the compe-tent authority’s approval before implementation.
6.5.7.2  The procedures for effecting changes to the maintenance pro-gramme should be described, and the associated documentation should include a planned completion date for each corrective action, where applicable.

6.5.8 Organisational Responsibilities.
The organisational structure and the department responsible for the administration of the programme should be stated. The chains of respon-sibility for individuals and departments (Engineering, Production, Quality, Operations etc.) in respect of the programme, together with the infor-mation and functions of any programme control committees (reliabil-ity group), should be defined. Participation of the competent authority should be stated. This information should be contained in the CAME or MOE as appropriate.
　
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