Page 79 - UK Continuing Airworthiness Regulations (Consolidated) 201121

ANNEX I - Continuing Airworthiness Requirements

M.B.603(a) AMC Issue of approval
1. The approval should be based upon the organisational capability relative to M.A. Subpart F
compliance and not limited by reference to individual CAA certificated products.
For example, if the organisation is capable of maintaining within the limitation of M.A.
Subpart F the Cessna 100 series aircraft the approval schedule should state A2 Cessna
100 series and not Cessna 172RG which is a particular designator for one of many
Cessna 100 series.
2. Special case for ELA1 aircraft:
In order to promote standardisation, for this category of aircraft the following approach is
recommended:
- Possible ratings to be endorsed in CAA Form 3:
- ELA1 sailplanes;
- ELA1 powered sailplanes and ELA1 aeroplanes;
- ELA1 balloons;
- ELA1 airships.
- Before endorsing any of those ratings (for example, ELA1 sailplanes) in CAA Form
3, the CAA should audit that the organisation is capable of maintaining at least one
aircraft type (for example, one type of sailplanes within the ELA1 category),
including the availability of the necessary facilities, equipment, tooling, material,
maintenance data, and certifying staff.
- It is acceptable that the detailed scope of work in the Maintenance Organisation
Manual (MOM) contains the same ratings endorsed in CAA Form 3 (for example,
ELA1 sailplanes), without a need to further limit them. However, the maintenance
organisation will only be able to maintain a certain aircraft type when all the
necessary facilities, equipment, tooling, material, maintenance data, and certifying
staff are available.
M.B.603(c) AMC Issue of approval
The numeric sequence of the approval reference should be unique to the particular approved
maintenance organisation.
M.B.604 Continuing oversight
(a) The CAA shall keep and update a programme listing, for each maintenance organisation
approved in accordance with Subpart F of Section B of this Annex under its supervision,
the dates when audit visits are due and when such visits were carried out.
(b) Each organisation shall be completely audited at periods not exceeding 24 months.
(c) All findings shall be confirmed in writing to the applicant organisation.
(d) The CAA shall record all findings, closure actions (actions required to close a finding) and
recommendations.
(e) A meeting with the accountable manager shall be convened at least once every 24
months to ensure he/she remains informed of significant issues arising during audits.
M.B.604(b) AMC Continuing oversight
1. Where the CAA has decided that a series of audit visits are necessary to arrive at a
complete audit of an approved maintenance organisation, the program should indicate
which aspects of the approval will be covered on each visit.
2. It is recommended that part of an audit concentrates on the organisations internal self
monitoring reports produced by the organisational review to determine if the organisation
is identifying and correcting its problems.
3. At the successful conclusion of the audit(s) including verification of the manual, an audit
report form should be completed by the auditing surveyor including all recorded findings,
closure actions and recommendation. A CAA Form 6F should be used for this activity.
4. Credit may be claimed by the CAA surveyor(s) for specific item audits completed during
the preceding 23-month period subject to four conditions:
(a) the specific item audit should be the same as that required by M.A. Subpart F latest
amendment, and
(b) there should be satisfactory evidence on record that such specific item audits were
carried out and that all corrective actions have been taken, and
(c) the CAA surveyor(s) should be satisfied that there is no reason to believe standards
have deteriorated in respect of those specific item audits being granted a back
credit;
(d) the specific item audit being granted a back credit should be audited not later than
24 months after the last audit of the item.
5. When performing the oversight of an organisation that holds more than one approval
pursuant to this Regulation, the CAA should arrange the audits to cover both approvals
avoiding a duplicated visit of a particular area.
M.B.605 Findings
(a) When during audits or by other means evidence is found showing non-compliance with a
requirement laid down in this Annex or Annex Vb (Part-ML), the CAA shall take the
following actions:
1. For level 1 findings, immediate action shall be taken by the CAA to revoke, limit or
suspend in whole or in part, depending upon the extent of the level 1 finding, the
maintenance organisation approval, until successful corrective action has been
taken by the organisation.
2. For level 2 findings, the CAA shall grant a corrective action period appropriate to the
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