GM 145.A.70(a) Maintenance organisation exposition
CAA ORS9 Decision No. 1
From 1 July 2024 this will be replaced with GM1 145.A.70
1. The purpose of the maintenance organisation exposition (MOE) is to set forth the procedures, means and methods of the organisation.
2. Compliance with its contents will assure compliance with the requirements of Part-145, which is a prerequisite to obtaining and retaining a maintenance organisation approval certificate.
3. 145.A.70(a)(1) to (a)(11) constitutes the ‘management’ part of the MOE and therefore could be produced as one document and made available to the person(s) specified under 145.A.30(b) who should be reasonably familiar with its contents. The 145.A.70(a)(6) list of certifying staff, B1 and B2 support staff and airworthiness review staff may be produced as a separate document.
4. 145.A.70(a)(12) constitutes the working procedures of the organisation and therefore as stated in the requirement may be produced as any number of separate procedures manuals. It should be remembered that these documents should be cross-referenced from the management MOE.
5. Personnel are expected to be familiar with those parts of the manuals that are relevant to the maintenance work they carry out.
6. The organisation should specify in the MOE who should amend the manual particularly in the case where there are several parts.
7. The quality manager should be responsible for monitoring the amendment of the MOE, unless otherwise agreed by the CAA, including associated procedures manuals and submission of the proposed amendments to the CAA. However the CAA may agree via a procedure stated in the amendment section of the MOE that some defined class of amendments may be incorporated without prior approval by the CAA.
8. The MOE should cover four main parts:
(a) The management MOE covering the parts specified earlier.
(b) The maintenance procedures covering all aspects of how aircraft components may be accepted from outside sources and how aircraft will be maintained to the required standard.
(c) The quality system procedures including the methods of qualifying mechanics, inspection, certifying staff and quality audit personnel.
(d) Contracting operator procedures and paperwork.
9. The accountable manager’s exposition statement as specified under 145.A.70(a)(1) should embrace the intent of the following paragraph and in fact this statement may be used without amendment. Any modification to the statement should not alter the intent.
This exposition and any associated referenced manuals define the organisation and procedures upon which the Part-145 approval is based as required by 145.A.70. These procedures are approved by the undersigned and should be complied with, as applicable, when work orders are being progressed under the terms of the Part-145 approval.
It is accepted that these procedures do not override the necessity of complying with any new or amended regulation published by the CAA from time to time where these new or amended regulations are in conflict with these procedures.
It is understood that the CAA will approve this organisation whilst the CAA is satisfied that the procedures are being followed and work standards maintained. It is further understood that the CAA reserves the right to suspend, limit or revoke the approval of the organisation if the CAA has evidence that procedures are not followed or standards not upheld.
Signed ........................................
Dated ..........................................
Accountable Manager and...... (quote position)........................
For and on behalf of........ (quote organisation’s name)..................................................
Whenever the accountable manager changes, it is important to ensure that the new accountable manager signs the paragraph 9 statement at the earliest opportunity.
Failure to carry out this action could invalidate the Part-145 approval.
When an organisation is approved against any other Part containing a requirement for an exposition, a supplement covering the differences will suffice to meet the requirements except that the supplement should have an index showing where those parts missing from the supplement are covered.