VISION: To be one of the leading Air Navigation Service Providers (ANSP) in the world. MISSION: To provide safe, efficient, effective and economic Air Navigation Services to airspace users, through deployment of new technologies and dedicated workforce.


Navigational-aid is the window through which pilot navigates a route and shoot approaches to the desired destination in day to day blind flying operations.

NAFIS is statutory assigned to the responsibility to conduct safety over sight function on navigational-aids and ensuring the safety of air navigation principally by conducting regular flight inspection, calibration of test equipment/avionics systems, surveillance of airspace systems, and certification of navigation aids/ associated facility in accordance with the stipulated procedures as recommended in ICAO document 8071, annexes 10 (vol. I & II) and 14 as well as NCAA regulations.




Pilot and dispatchers are in this section, Pilot fly calibration aircraft while dispatchers cover monitoring and routing information for safety in conjunction with flight inspection engineers to always determine accuracy of navigational aids, positions and records.


Licensed aircraft engineers in this department maintain the flight inspection aircraft and its system in compliance with the air worthiness standard as stipulated by NCAA and the aircraft manufacturers in accordance with relevant ICAO Annexes.


Flight inspection engineers in this department maintain the flight inspection consoled installed on board the flight inspection aircraft in conjunction with the pilots determine the accuracy and ascertain the operational classification of navigational aids status categorisation in accordance with Documents 8071 ICAO Annexes (I & ii) & 14, and FAA flight inspection airspace system 8200. 



The calibration laboratory/avionics/workshop engineers in this department conduct maintenance, repair and calibration of equipment and avionics system in the laboratory in accordance with the recommended standards and practices traceable to international bureau of standards.


1. The Airborne Inspection, Flight inspection and surveillance of ground based navigation aids that are installed in designated location at airports and enroutes all over the federation is to ascertain the quality of signals they provide to aircraft navigation in space. NAVAIDS such as:

DME (Distance Measuring Equipment)

VASI , PAPI etc (Visual Guide Slope Indicators/Precision Approach Path Indicator)

NDB/LOC (Nono-Directional Beacons/Locators)

RNAV (Area Navigation)

FMS (Flight Management System)

VOR (Very High Frequency Omni Directional Radio Range)

Global Positioning System (GPS)

Communications (LF, MF, HF, VHF, & UHF)

VHF & UHF – Directional Finders

Instrument Flight Procedures

Radar System (PAR, ATCRBS)

ILS (instrument Landing System)

Marker Beacons

Approach & Landing Lights

2. Monitoring the world Geodetic System (WGS-84) Survey in line with the implementation of current AIS/AIP/AIRSPACE/

3. Ensure that the assignment of status classification complies with the operational status of a navigational facility in acco0rdance with prescribed tolerances of ICAO DOC.8071(Manual on testing of Radio navigational Aids), US FAA OAP 8200.1B, ICAO Annex 10 vol. i & ii, ICAO Annex 14 vol., NCAA Flight Inspection Manual or any other tolerance reference adopted for that purpose.

4. FACILITY NOTAM: If the flight inspection/surveillance does not meet the requirement of the order above or ensure the standards of ICAO Annex 10 or NCAA FIM, status of a facility which is unsafe or unreliable for navigation, NAFIS shall direct NAMA (or Facility Owner) to shirt down the facility and initiate the technical details for NOTAM based on the flight inspection data defining the facility as unusable or restricted in a specified area. The inspector shall also verify that the appropriate NOTAM are issued correctly within 24 hours.

5. Maintenance and calibration of the flight inspection systems (Nav/Comm/Radar and test equipment).

6. Maintaining the calibration systems to ensure that the required scheduled calibration period are met and lifetime cycling of the calibration equipment provides continuity to service.

7. To ensure that the calibration laboratory meets ICAO conditions on traceability by using and sustaining standard reference equipment.(*references such as frequency standards, voltage calibrators, power amplifier ridge, crystal incubators and wgs84(survey) hot bed etc*) these references are always on hot standby. In advertent disruption of the continuity fringes on the traceability of calibration standards.

8. ACCIDENT: First to fly into incident/accident sight to establish status of NAV AID at the time of accident investigation by AIPB.

9. Maintenance of the authority’s flight inspection aircraft in accordance with the approved maintenance scheduled.

10. Establishment and development of aircraft maintenance policy including the  maintenance programme(s) required by NCAA-OPS, Sub-Part M 1/3,910.

11. Analysis the effectiveness of the maintenance programme as required by NCAR-OPS.

12. Ensures that the quality system required by NCAR-OPS Sub Part M 1/3,900 is effective in its application and any follow up actions required to addressing findings.

13. Provides serviceable aircraft to meet the requirement of flying programme of the department.

14. Ensure that the company holds and updates all the publication, documents, specifications and drawings necessary for a proper discharge of its obligations under the terms of approval.

15. The overall control and development of the approved Maintenance Schedule for the aircraft.

16. Reviews and evaluates of Airworthiness Directives, manufacturers SB’s AOL’s etc. for fleet applicability ensuring that appropriate action is taken to maintain and enhance fleet operating technical standards.

17. Ensure that the certification of Airworthiness for each airplane operated by the company remains valid In respect of:

The airworthiness of the airplane

The expiry date specified on the certificate and

Any other condition specified on the certificate.

18. Report any mandatory occurrence and incidence.


Aircraft maintenance Quality Assurance includes the following:

1. Advice the maintenance engineering Department of significant airworthiness and reliability problems as may affect the organization’s efficiency or economic performance. 

2. Maintain a quality assurance system (including appropriate records) of independence random and percentage checks to confirm that proper inspection and work standards areas achieved in relation to all work undertaken. 

3. Liaise with NCAA and other authorities on all policy matters relating to safety, airworthiness and approved organization.

4. Carry out quality surveillance of the company’s base and ramp operation to ensure airworthiness and safety standards are maintained.

5. Maintain adequate inspection control in accordance with pertinent airworthiness requirement. 

6. Ensure maintenance of the technical records section and technical library.

7. Ensure that all work is completed in accordance with the applicable airworthiness requirements and that individual inspection certifies work within the limits of terms reference. 

8. Ensure that all control paperwork is completed and on completion of the check or rectification of the aircraft/equipment is not released to service while the final inspection has been carried out and the completed work pack returned to technical records. 

9. Control of all calibration, specialized tools and equipment. 

10. Ensure that all work is carried out within the terms of company’s approval or personal aircraft maintenance licenses. 

11. Ensure that all production operations are carried out in accordance with food engineering practices as lay down in the manual. 

12. Monitor stores quality assurance procedures. 

13. Carry out in dept investigations of air safety reports, occurrence reports, voyage reports, deferred defects and repetitive defects.


The store is responsible for:

The custody and also accounts for all aircraft components and materials and for use in the department.

Ensure that only approved stockiest as agreed by quality section and include in the approved stockiest list are used for the supply of equipments and parts. 

Stores with conformance report, monitors supplies. Such monitoring will include but will not be limited to:

i. Correct Packing

ii. Correct Labeling

iii. All paperwork complete and correct

iv. Freedom from obvious damage

v. Dimension Acceptance

vi. NCAA acceptance

The non-conformance report shall be retained in the file by the quality department and subject to periodic reviews.


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