2.4 Permitted variations to maintenance programme.
The reasons and justification for any proposed variation to scheduled maintenance may be prepared by the sub-contracted organisation. Acceptance of the proposed variation should be granted by the operator. The means by which the operator acceptance is given should be specified in the relevant procedures. When outside the limits set out in the maintenance programme, the operator is required to obtain approval by DGCA.
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2.5 Scheduled maintenance
Where the sub-contracted organisation plans and defines maintenance checks or inspections in accordance with the approved maintenance programme, the required liaison with the operator, including feedback should be defined.
The planning control and documentation should be specified in the appropriate supporting procedures. These procedures should typically set out the operator's level of involvement in each type of check. This will normally involve the operator assessing and agreeing to a work specification on a case by case for base maintenance checks. For routine line maintenance checks this may be controlled on a day-to-day basis by the sub-contracted organisation subject to appropriate liaison and operator controls to ensure timely compliance. This typically may include, but is not necessarily limited to:
(a)
Applicable work package, including job cards,

(b)
Scheduled component removal list, 

(c)
ADs to be incorporated,

(d)
Modifications to be incorporated

The associated procedures should ensure that the operator is advised in a timely manner on the accomplishment of such tasks.

2.6 Quality monitoring
The operator's quality system should monitor the adequacy of the sub-contracted continuing airworthiness management task performance for compliance with the contract and M.A Subpart G. The terms of the contract should therefore include a provision allowing the operator to perform a quality surveillance (including audits) upon the sub-contracted organisation. The aim of the surveillance is primarily to investigate and judge the effectiveness of those sub-contracted activities and thereby to ensure compliance with M.A Subpart G and the contract. Audit reports may be subject to review when requested by the DGCA.
2.7 Access by the DGCA
The contract should specify that the sub-contracted organisation should always grant access to the DGCA.
2.8 Maintenance data
The maintenance data used for the purpose of the contract should be specified, together with those responsible for providing such documentation and the DGCA responsible for the acceptance/approval of such data when applicable. The operator should ensure such data including revisions is readily available to the operator's continuing airworthiness management personnel and those in the sub-contracted organisation who may be required to assess such data. The operator should establish a 'fast track' means of ensuring that urgent data is transmitted to
Rev 0, dated 2nd March, 2010 143 the sub-contractor in a timely manner. Maintenance data may include, but is not necessarily limited to:
(a)
Maintenance programme, 

(b)
ADs,

(c)
Service Bulletins,

(d)
Major repairs/modification data, 

(e)
Aircraft Maintenance Manual,

(f)
Engine overhaul manual, 

(g)
Aircraft IPC,

(h)
Wiring diagrams, 

(i)
Trouble shooting manual, 

2.9 Airworthiness directives
While the various aspects of AD assessment, planning and follow- up may be accomplished by the sub-contracted organisation, embodiment is performed by a CAR-145 maintenance organisation. The operator is responsible for ensuring timely embodiment of applicable ADs and is to be provided with notification of compliance. It therefore follows that the operator should have clear policies and procedures on AD embodiment supported by defined procedures which will ensure that the operator agrees to the proposed means of compliance.
　
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