CHAPTER 22
The Provision of Airport Data
22.1 General
22.1.1 All aerodrome operational data which are
relevant to the safe and efficient operation of aircraft at an aerodrome must
be promulgated in the appropriate Aeronautical Information Publications of each
State. This data will range from permanent descriptive material of the
aerodrome to information of a short term and temporary nature.
22.1.2 The responsibility for the provision of aerodrome
data rests with the Aerodrome Operating Authority. In some States, this may
include data on air Traffic Control Services as well as the basic airport
descriptive data.
22.2 The Types of Information
22.2.1 Data can be divided into three broad groups
as follows:
22.2.1.1 Permanent data: This comprises basic descriptive
material for the aerodrome which rarely, if ever, changes. The data which would
fall into this category would include airport reference points, runway
strength, runway dimensions and layout, elevations, and permanent obstacles. ECAR
139 Subpart E describes most of the data in this category.
22.2.1.2 Variable data: Data in this category are
of a semi‑permanent nature but are liable to change, and provision must
be made for such changes to be promulgated promptly. Data in this category
would include such items as runway declared distances, obstacles, hours of
operation, visual aids, and such facilities as rescue, fire fighting, and
salvage. It is doubtful whether data in the category would change more
frequently than once per year.
22.2.1.3 Temporary data: Data in this category are
subject to short‑term variations. These include limitations and warnings
such as temporary runway or taxiway closures, temporary obstacles, runway
surface condition reports, system failures, and bird hazards.
22.3 Procedures
22.3.1 The Airport Authority must ensure that all
data are published in the appropriate Aeronautical Information Publications and
that such data are kept up to date by timely amendment action.
22.3.2 If the amendment process is too slow for the
publication of changes then the Class II NOTAM should be used to promulgate
information.
22.3.3 Short notice changes which occur within
variable or temporary data categories must be promulgated promptly using the
NOTAM Class I.
22.3.4 The Aerodrome Air Traffic Control Unit must
be informed immediately when such changes occur so that they may advise flight
crew by R\T where appropriate.
22.3.5 Procedures must be established to forward
any new data or variations of existing data to the Aeronautical Information
Service of the State concerned, as indicated in Annex 15.
22.3.6 Any variations which affect the accuracy of
the charts described in Annex 4 must be submitted to the authority responsible
for the publication of such charts.
22.4 Responsibility for Notification of Changes
22.4.1 Each aerodrome must establish a system for
the prompt notification of changes to the variable data and the immediate
notification of any temporary data throughout the aerodrome’s published hours
of operation.
22.4.2 Aerodrome which close at night should
establish a system for the notification of circumstances which may occur during
the hours of closure and which will be very significant as soon as the airport
opens.
22.4.3 A senior aerodrome official, normally the
manager responsible for aerodrome operations, should be made responsible for
the provision of airport data and any changes.