DAWS Advisory Circulars

LIST OF ADVISORY CIRCULARS

This Advisory Circular provides information on the certification process of approved Training 
Organization intending to conduct aircraft maintenance engineers training. 

Effective Date: Monday, April 10, 2023

This Advisory Circular (AC) is issued to give information and guidance to operators of all aircraft registered in Nigeria on the regulatory requirements and general basic procedures to establish the w…

This Advisory Circular (AC) is issued to provide guidance and information to persons involved in the sale, maintenance, or disposal of aircraft parts. It provides information and guidance to prev…

This Advisory Circular (AC) is issued to provide guidance and information on the proper usage of aircraft parts removed from an aircraft no longer in service or parts recovered from an aircraft involv…

AIRCRAFT TYPE CERTIFICATE ACCEPTANCE FOR AIRCRAFT THAT WERE IMPORTED INTO FEDERAL REPUBLIC OF NIGERIA AND FIRST CERTIFICATE OF AIRWORTHINESS ISSUED PRIOR TO AND POST 
ENACTMENT OF CIVIL AVIATION A…

Effective Date: Monday, April 10, 2023

GUIDANCE ON REGISTRATION OF SUPPLIERS OF AIRCRAFT PARTS, COMPONENTS 
AND MATERIALS USED IN MAINTENANCE 

NOTE: This is a controlled and restricted publication. The latest revision of this publi…

Effective Date: Monday, April 10, 2023

GUIDANCE ON MAINTAINING THE EFFECTIVENESS OF ENHANCED GROUND 
PROXIMITY WARNING SYSTEM (EGPWS)  


NOTE: This is a controlled and restricted publication. The latest revision of this publication …

Effective Date: Monday, April 10, 2023

 This Advisory Circular (AC) is issued to provide information and guidance on the civil aviation 
regulatory requirements to register an aircraft in Nigeria. 



Effective Date: Sunday, September 10, 2023

This Advisory Circular (AC) is issued to provide information and guidance on the civil aviation regulatory requirements and procedures for recordation and cancellation of an Irrevocable Deregistration…

This    Advisory    Circular    (AC)    is    issued    to     provide     information     and guidance to ope…

This Advisory Circular (AC) is issued to provide information about the requirements of continued validity of the certificate of airworthiness and to give guidance on the procedure to renew the certifi…

This advisory circular is issued to provide guidance information on the regulatory requirements that relate to preparation of a maintenance program for an aircraft engaged in commercial air transport.…

This advisory circular is issued to provide guidance and information on the regulatory requirements that relate to development of maintenance program for aircraft that have been issued with a certific…

This Advisory Circular (AC) is issued to provide guidance to operators by setting acceptable means for ensuring analysis of the effectiveness of aircraft maintenance programme is carried out to c…

This advisory circular is issued to provide guidance and information on the regulatory requirements that relate to the application of human factors principles in the development of AOC Aircraft Mainte…

This Advisory Circular (AC) is issued to provide information and guidance to the fulfilment of regulatory requirements that relate to the issue of Restricted Certificate of  Airworthiness, Export…

This Advisory Circular (AC) is issued to provide guidance information on preparing, and approval of a maintenance organization Maintenance Procedures Manual (MPM) in accordance with the Civil Aviation…

This Advisory Circular (AC) is issued to provide guidance and information to organisations and operators on the certification process of maintenance organisations. The process is  designed  …

This Advisory Circular (AC) is issued to provide guidance on the establishment and management of maintenance facility technical stores. 



Effective Date: Monday, April 10, 2023

This Advisory Circular (AC) is issued to provide information and guidance to a foreign AMO on acceptable means and process by which the AMO may qualify for the issue of a Maintenance Organization Appr…

This Advisory Circular (AC) is issued to provide guidance information on preparing and submitting an Air Operators Maintenance Control Manual (MCM) to the Authority for approval in accordance with the…

This Advisory Circular is issued to provide information and guidance to Air Operators and Maintenance Organisations in the process of developing maintenance contract agreements. 

This Advisory Circular (AC) is issued to provide guidance to operators by setting acceptable means for ensuring that modifications or repairs to aircraft comply with the requirements of the applicable…

This advisory circular (AC) is issued to provide information and guidance which may be used to design or develop a maintenance programme that utilizes reliability control methods. The aircraft mainten…

 This publication provides guidance on measures that aviation fuel suppliers should adopt in the discharge of the responsibilities placed upon them. It is aimed particularly at those installation…

This Advisory Circular provides information on the Type Certificate Acceptance process for aircraft to be registered in Nigeria for the first time.

This Advisory Circular is issued to provide guidance on the approval process for a Training Programme for 
an AMO.



Effective Date: Monday, April 10, 2023

This Advisory Circular (AC) is issued to provide guidance and information to organisations and operators on the certification process of Continuing Airworthiness Management Organisations (CAMO). The p…

This advisory circular is issued to provide guidance and information on the regulatory  requirements that relate to development of continuing airworthiness management exposition by a Continuing A…

This Advisory Circular (AC) is issued to give information and guidance to operators of aircraft registered in Nigeria and Approved Maintenance Organizations on the procedures for reporting Suspected U…

This Advisory Circular provides guidance for operator who intends to obtain RVSM approval from the NCAA. 



Effective Date: Monday, April 10, 2023

This is a controlled and restricted publication. The latest revision of this publication is with the Directorate of Airworthiness Standards (DAWS) of the NCAA 

This Advisory Circular (AC) is issued to provide guidance to applicant for issuance and acceptance of supplemental type certificate. 



Effective Date: Monday, April 10, 2023

This Advisory Circular (AC) has been developed to provide guidance to operators of RPAs in the operation of RPAs and the means whereby they may safely and legally operate RPA systems. This document al…