Airworthiness Directives

Including UK Airworthiness Directives and Proposed Airworthiness Directives

Airworthiness Directives (ADs) are issued to address unsafe conditions.

Aircraft on the UK Register are required to comply with applicable UK ADs United Kingdom Flag Icon , European Aviation Safety Agency (EASA) ADs EU and those issued by the National Authority of the State of Design. Links to other NAAs websites are listed further down.

Prior to July 2003, UK ADs for UK Products were a number only linked to a CAA declared Mandatory Service Bulletin issued by the Type Certificate Holder. If you have the SB you have the AD. These AD and SB Numbers are listed in CAP 476, which is current at final issue (September 2004) and no longer amended. Those Service Bulletins remain mandatory under EU regulations, unless cancelled and/or superseded by a new AD.

Mandatory Requirements issued by the CAA for non-EASA products of UK Design or CAA ADs for EASA products issued under Article 14(1) of Regulation (EC) No. 216/2008 are available for download from the website until they are published in CAA publication CAP 747.

ADs awaiting incorporation in CAP 747

Enquiries regarding ADs should be sent to the AD Unit


When the urgency of a situation precludes consultation, priority publication of mandatory continuing airworthiness information will be by means of a Emergency AD.

To receive Notification of EADs you will need to register for our free publications subscription service > New User Subscription and choose the 'Safety Critical Information' category, this was previously the 'Emergency Airworthiness Directives' category. Once you have subscribed you will be notified every time a new EAD is published on the CAA website.


CAA EADs will be available until cancelled and are published in published in CAP 747, other EADs will be available for a period of two months from the publication date and then they will be removed, they may then be obtained from the originating NAA.

Emergency ADs list

Proposed ADs (PADs)

CAA PADs for products of UK design are available for review and comment. The closing date for comments is stated at the end of the PAD. Comments should be sent to the AD Unit mailbox.

United Kingdom Flag IconCAA National PADs
EUEASA PADs can be viewed on the EASA Website.






Links to other Foreign NAA websites

Full addresses for these and others are listed in CAP 747.

ArgentinaANAC Administracion Nacional de Aviacion Civil
AustraliaCivil Aviation Safety Authority (CASA)
BrazilAgência Nacional de Aviação Civil (ANAC)
CanadaTransport Canada (TC)
Czech Rep
Denmark Statens Luftfartsvæsen - Danish Civil Aviation Administration - Airworthiness Directives
FranceGroupement pour la sécurité de l'aviation civile
Germany LBA - Airworthiness Directives Page
IndonesiaDirectorate General for Civil Aviation
ItalyENAC - Ente Nazionale per l'Aviazione Civile - Airworthiness Directives Database
JapanJapan Civil Aviation Bureau (JCAB)
LithuaniaCivilines aviacijos administracija
NetherlandsInspectie Leefomgeving en Transport
New ZealandCivil Aviation Authority of New Zealand (CAA NZ)
PolandCivil Aviation Office
RomaniaRomania Civil Aeronautic Authority
SerbiaCivil Aviaition Directorate of the Republic of Serbia
SpainDGAC - Airworthiness Directives Page
USAFederal Aviation Administration (FAA)