Changes to MEL Approvals Effective 4th April 2019

MEL Amendments

Effective 4th April 2019, all amendments to an approved MEL must be approved by the Registry prior to being used operationally.

Amendments to approved MEL's are to be submitted on the new Form 8 - Minimum Equipment List (MEL) Approval form. (This changes the previous procedure where amendments to approved MEL's were to be submitted to the Registry and could be used with immediate effect).

For further details refer to RP 4 – Guidance to Operators (Chapter 5.2.3 MEL Amendments).


The Registry has invested in further developments to the Registry’s Online Services Portal.

Findings and/or Observations identified during the MEL review will be addressed to the Flight Operations Representative (FOR), with the Operator in copy. 

FORs or Operators (and MEL authors, who are Aircraft Client Users), can enter responses to each finding directly into the MEL record via the online services portal. 

This enhancement to the online services portal will provide a simplified process, greater transparency and reduction of email exchanges to further improve the customer interaction with the Registry.


To further support operators affected by Part-NCC: -

  • Form 8 (and Form 20) now includes a field allowing the FOR and/or Operator to confirm which EASA member state they have, or are intending to, declare to. This enables the Registry to enhance its support to those operators, especially where a Letter of Understanding (LoU) exists between the Isle of Man and the EASA state.


  • Non EASA TCDS aircraft affected by Part-NCC must now: -
    • Ensure the MEL is based on the TCDS MMEL and is no less restrictive than both the TCDS MMEL and EASA MMEL,
    • Meet the Preamble requirements for Part NCC operators in RP 4 Chapter 5.2.4 Appendix 2, and
    • Submit TCDS MMEL & Manufacturers’ O&M and the EASA MMEL & Manufacturers’ O&M to the Registry in support of the MEL application.

Where the IOMAR has entered into agreement with an EASA Member State, once an MEL is approved by the Registry, our systems will not automatically advise the relevant EASA competent Authority that the MEL has been approved (NOTE: with the exception of the UK CAA, will be automatically advised by the IOMAR of the MEL approval).


There are no plans to charge for MEL amendments.

However the IOMAR reserves the right to make a charge where the amendment is considered a significant change to the existing MEL (e.g. has undergone a complete rewrite).

Complete the Form 8 MEL approval form as usual.  Tick the correct box (i.e. MEL Amendment – not Initial MEL).  Provide a list of the changes (including the justification for the change) on page 2 of Form 8 and submit to [email protected] (along with the supporting documentation).

The Registry will review the proposed amendment to the MEL.  Any findings or observations will be sent to the FOR via the online portal.  Once the findings have been satisfactorily addressed, the FOR will receive an email from the Registry to confirm that the MEL amendment is approved and can be used with immediate effect.

No. The amendment must be approved by the Registry before it can be used operationally.

The amended MEL will be reviewed by the Registry to ensure the MEL continues to meet the IOM standards.  Once the findings (if any) have been satisfactorily addressed, the FOR and operator will receive an email from the Registry to advise that the MEL is approved and can be used operationally.

The IOMAR has Letters of Understanding (LoU) with the German LBA, UK CAA and Malta CAD. 

At this time the IOMAR will advise only the UK CAA when an MEL is approved (for Operators who have advised the Registry that they have declared to the UK CAA).

It remains the Operators responsibility to advise any other EASA member state that they have declared to, of the aircraft MEL approval.