NCAA PPL Air Law key terms

The 1944 international treaty that established the legal framework for civil aviation, creating ICAO and setting out principles on sovereignty, nationality of aircraft, and standardised flight rules.

One of the numbered technical supplements to the Chicago Convention, each covering a specific subject such as personnel licensing, rules of the air, or aircraft operations, adopted as Standards and Recommended Practices.

A Standard is a specification whose uniform application is necessary for safety or regularity; a Recommended Practice is desirable but not mandatory. Both are adopted by the ICAO Council under the Convention.

Procedures for Air Navigation Services: ICAO material describing operational procedures that are too detailed for an Annex but are needed for safe, standardised international operations.

The obligation on a contracting state to inform ICAO of any national rule, practice, or procedure that differs from an international Standard, so other states can be warned.

The principle that each state has complete and exclusive authority over the airspace above its territory and territorial waters, meaning foreign aircraft need permission to enter or overfly.

The Chicago Convention provision allowing non-scheduled flights of other contracting states to enter, overfly, or land for non-traffic purposes without prior permission, subject to state conditions.

The set of commercial rights exchanged between states, ranging from overflight and technical stops to carrying traffic between them, usually granted through bilateral air service agreements.

The carriage of passengers, cargo, or mail between two points within the same state by a foreign aircraft, normally prohibited unless the state expressly grants the right.

A treaty between two states that specifies which airlines may operate between them, the routes and capacity permitted, and the traffic rights each side grants.

The commercial privileges granted to an airline to carry revenue traffic to, from, or through another state's territory, defined by routes and points in the relevant agreement.

The belt of sea adjacent to a state's coast, generally extending twelve nautical miles, over which the state has sovereignty, including the airspace above it.

The statutory body that regulates Nigerian civil aviation, issues licences and certificates, and enforces the Nigerian Civil Aviation Regulations, operating under the ministry responsible for aviation.

The national rules, commonly abbreviated Nig. CARs, that govern aircraft registration, airworthiness, operations, licensing, and safety in Nigeria, issued by the aviation authority under the Civil Aviation Act.

The Nigerian statute establishing the legal basis for civil aviation regulation, including the powers of the aviation authority, registration of aircraft, and investigation of accidents.

The formal authorisation a national authority issues to an operator, confirming it has the organisation, personnel, aircraft, and procedures required to conduct specified commercial air transport operations safely.

The entry of an aircraft on a national register, giving it a nationality and registration mark; Nigerian aircraft carry the prefix 5N, and the registered owner is normally the operator.

The letter or symbol group identifying the state of registry, appearing before the registration mark on the aircraft; for Nigeria this is 5N.

The document issued by the state of registry recording the aircraft's nationality and registration marks, owner, and identifying details, and which must be carried on board.

A certificate confirming that an aircraft has been inspected and found to conform to its approved type design and is safe for flight within stated limitations and conditions.

A mandatory notice issued by the state of design or registry requiring specific inspection, modification, or repair of an aircraft type to correct an unsafe condition.

The set of maintenance, inspection, and record-keeping processes required to keep an aircraft in a condition that meets its type certificate and remains safe throughout its service life.

A certification, signed by authorised maintenance personnel, stating that the work recorded has been completed and the aircraft or component is fit for return to service.

The papers that must be carried on board, including the certificate of registration, certificate of airworthiness, crew licences, journey log, and where applicable the radio station licence and operating manual.

A record carried on board in which the aircraft's flights, crew, and defects are entered, used to track utilisation and to document maintenance and operational information.

A national authorisation issued to a person such as a pilot, engineer, or controller, confirming that the holder meets the required knowledge, experience, and medical standards for the privileges granted.

Entries placed on a licence that define the specific aircraft, class, or operational privileges the holder may exercise, such as type ratings or instructor endorsements.

A licence rating permitting the holder to fly under instrument flight rules and in instrument meteorological conditions, subject to currency and proficiency requirements.

A document issued by an approved medical examiner confirming that a licence holder meets the required health standards, with classes corresponding to the privileges exercised.

The operating rules under which a pilot navigates primarily by visual reference to the ground, requiring specified flight visibility and distance from cloud, and clear of cloud.

The operating rules under which flight is conducted by reference to instruments and navigation aids, with separation provided by air traffic control and specific communication and clearance requirements.

The weather minima of visibility and cloud distance that permit flight under visual flight rules; when conditions fall below these minima, instrument rules generally apply.

An authorisation for an aircraft to proceed under specified conditions, issued by a controller to provide separation and traffic information; it does not by itself authorise breach of regulations.

Airspace of defined dimensions within which air traffic control service is provided to flights in accordance with airspace classification, requiring clearances for certain operations.

The lettered categories A to G that define the services provided, the separation applied, and the clearance and communication requirements within a given volume of airspace.

The formal process of determining the facts, causes, and safety recommendations arising from an accident, conducted independently of regulatory enforcement and reported to ICAO where required.

An occurrence, not an accident, involving circumstances indicating a high probability of an accident, such as a near collision or a serious technical failure in flight.

A flight that is not operated to a published timetable as a regular service, such as a charter, and which may benefit from simplified transit provisions under the Convention.