Large & Turbojet Aircraft

A Large and Turbojet aircraft is an aircraft with any of the following characteristics:

  • a maximum total mass authorised exceeding 5,700 kg;
  • one or more turbojet engines; or
  • a seating configuration of more than nine passenger seats.
The complete requirements for operators of all M-registered aircraft can be found in the Air Navigation (Isle of Man) Order 2015 (as amended).
Operators of Large and Turbojet Aircraft must also comply with the additional requirements of Part 17A of the Air Navigation (Isle of Man) Order 2015.

Such aircraft on the M- Register must have all of the following:

  • Company Operations Manual;
  • Safety Management System;
  • Maintenance Control Manual;
  • Fatigue Risk Management Programme; and
  • Minimum Equipment List (approved by the Registry)

Further guidance on the above requirements can be found below:

The operator of an aircraft must prepare and ensure that a Company Operations Manual (COM) is in force in respect of the aircraft.

The manual must include the items listed in Part 17a 99B of the ANO(IOM) 2015 (as amended), see page 71-2.

Any one of the following formats is acceptable to the Registry:

  1. Based on RP56a Company Operations Manual Template (request a copy by email [email protected]);
  2. Using the Operators existing generic (no reference to a specific National Authority) COM;
  3. Using the Operators existing COM, with a separate 'differences' appendix for M-registered aircraft clearly stating compliance to IOM regulations and flights operations for private or corporate use only.

A Safety Management System (SMS) is a systematic approach to managing safety including the necessary organisational structure, accountabilities, policies and procedures.

Further information can be found on our dedicated SMS webpage.

The operator of an aircraft must ensure that a reference to an operator’s maintenance control manual developed in accordance with industry codes of practice is included in the company operations manual.

The manual must contain information about—

  • the operator’s maintenance responsibilities;
  • the means of recording names and positions of maintenance personnel;
  • the maintenance programme;
  • the methods used for the completion and retention of maintenance records;
  • the procedures for ensuring that appropriate information, including any amendment to the maintenance programme, is disseminated to others;
  • the procedures for implementing action required following the receipt of mandatory continuing airworthiness information;
  • a system of analysis and continued monitoring of the performance and efficiency of the maintenance programme in order to correct identified deficiencies;
  • the aircraft types and models to which the manual applies;
  • procedures for ensuring that any unserviceability affecting an aircraft’s airworthiness is recorded and rectified; and
  • the procedures for advising the Department of significant in-service occurrences.

The manual may be issued in parts.

The design of the manual must take account of human factors.

Please refer to RP56b Maintenance Control Manual Guidance for further guidance.


Further information can be found on our dedicated FRMP webpage.

The operator of an aircraft of a type that has a master minimum equipment list established must—

  • prepare and ensure that a minimum equipment list for the aircraft is approved by the Department; and
  • include the details of the minimum equipment list procedures in the company operations manual.

Go to our MEL page for further details.