Other Tools

Aviation English Language Test Service (AELTS)

Pilots, air traffic controllers and aeronautical station operators involved in international operations are required to attain the ability to speak and understand English to a level 4 proficiency of ICAO's language proficiency rating scale.

ICAO's AELTS facilitates ICAO formal recognition of those tests of aviation English designed specifically for aviation and that meet ICAO's Language Proficiency Requirements.  

ICAO does not assess or recognize tests of general English, those for another language than English or any other tests that may be used in aviation (such as for licensing). It focuses instead on assessing tests designed specifically for aviation.

To access the AELTS system, CLICK HERE.

Online Airworthiness Information Network

Launched on 29 October 2014, the "Online Airworthiness Information Network" is a repository for States to share airworthiness information with other States for States to contact each other regarding the continuing airworthiness of aircraft and facilitate the cross border transferability of aircraft. In order for this tool to be effective, States are encouraged to keep their airworthiness information updated.

Please click on Introducing the Online Airworthiness Information Network for more information.

Please click on Online Airworthiness Information Network in ICAO iSTARS to view and update airworthiness information of ICAO Member States. In order to have access to this link, please subscribe to iSTARS in ICAO Secure Portal. State Focal Points should refer to State Letter 2014/71 dated 29 Oct 2014 for more information.