Issue 6.00

Issued: 04 August 2017

Reviewed: 17 February 2023

Effective: on issue

An amendment is being proposed to this OTAR Part. To review the draft document before it is formally published please click the "CONSULTATION DOCUMENT" button above.

Comments should be received by 26 August 2025 and can be sent by email to assi.consultation@airsafety.aero.


This OTAR Part details the requirements for persons performing maintenance on aircraft not operated for commercial air transport and not covered under the authorisation provided by a suitably approved OTAR Part 145 organisation. These requirements cover:

  • the validation of an aircraft maintenance engineer licence issued by an ICAO contracting state acceptable to the Governor; and

  • the authorisation of a validation holder to issue a Certificate of Release to Service (CRS); and

  • the renewal of the validation of aircraft maintenance engineer licence; and

  • the renewal of the authorisation of a validation holder to issue a CRS; and

  • the privileges and limitations associated with those validations and authorisation.

 

ASSI's published address has changed to:

3rd Floor, The Galleria, Station Road, Crawley, RH10 1WW, UK