The Civil Aviation (Aeronautical Telecommunication Communication Systems) Regulations, 2018

Section 1. Title Section These Regulations may be cited as the Civil Aviation (Aeronautical Telecommunication Communication Systems) Regulations, 2018.

Section 2. Interpretation Section discrete contiguous time slots as the fundamental shared resource; and

Section 3. Application Section 3(1) These Regulations shall apply to a person providing Communication, Navigation and Surveillance Services within designated air spaces and at aerodromes. Section 3(2) These Regulations do not apply to a person providing Communication, Navigation and Surveillance Services to state aircraft.

Section 4. Requirements for Communication, Navigation and Surveillance Facilities Section The minimum requirements for planning, installation, commissioning, training, operations and maintenance of the Communications, Navigation and Surveillance facilities shall conform to these regulations.

Section 5. Certification of ANS Provider Section A person who wishes to provide Air Navigation Services service or operate a facility to support an air traffic service shall have an Air navigation service providers certificate issued in accordance with the Civil Aviation (Certification of Air Navigation Service Providers) Regulations 2017.

Section 6. Approval Requirement Section 6(1) A person shall not provide Air Navigation Services or operate Communication, Navigation and Surveillance facilities or systems in the designated airspace and aerodromes unless the systems or facilities have been approved by the Authority. Section 6(2) An Air Navigation Service Provider shall notify the Authority of its intention to procure, install, use, decommission, upgrade or relocate any communication, navigation and surveillance facility or facilities in the designated airspace and aerodromes not less than thirty (30) days prior to the date of start of the process. Section 6(3) The Authority shall approve installation, use, decommissioning, upgrading or relocation of all the communication, navigation and surveillance facility or facilities in the designated airspace and aerodromes.

Section 7. Inspections and Audits Section 7(1) The Authority shall carry out safety inspections and audits on Communication Navigation and Surveillance facilities, documents and records of the Communication Navigation and Surveillance facilities to determine compliance in accordance with these Regulations. Section 7(2) An inspector of the Authority shall have unrestricted access to the facilities, installations, records and documents of the service provider to determine compliance with these Regulations and required procedures.

Section 8. Siting and Installation Section 8(1)(a) are operated, maintained, available and reliable in accordance with the requirements prescribed by the Authority; Section 8(1)(a)(i) are operated, maintained, available and reliable in accordance with the requirements prescribed by the Authority; Section 8(1)(a)(ii) are designed to meet the applicable operational specification for that facility; Section 8(1)(a)(iii) are installed and commissioned as prescribed by the Authority; and Section 8(1)(a)(iv) conform to the applicable system characteristics and specification standards prescribed by the Authority; Section 8(1)(b) determine the site for installation of a new facility based on operational requirements, construction aspects and maintainability. Section 8(2) The facilities in subregulation (1) shall be installed by licensed ait s with relevant ratings for the facilities.

Section 9. Commissioning Requirement Section is commissioned to meet the specifications for that facility; and

Section 10. Availability and Reliability of CNS facilities Section 10(1) An Air Navigation Services Provider shall be responsible for the provision of communication, navigation and surveillance services and facilities to ensure that the telecommunication information and data necessary for the safe, regular and efficient operation of air navigation is available. Section 10(2)(a) availability; Section 10(2)(b) reliability; Section 10(2)(c) accuracy; Section 10(2)(d) Integrity; Section 10(2)(e) mean time between failure; and Section 10(2)(f) mean time to repair Section 10(3)(a) the configuration of each service; and Section 10(3)(b) the known performance of each service. Section 10(4) The air navigation service provider shall describe in the operations manual the method used to calculate each of the values. Section 10(5) For a radio navigation service, the integrity values or characteristics shall be given for each kind of navigation aid facility that forms part of the service. Section 10(6) The performance of technical facilities shall be monitored, reviewed and reported against these Regulations. Section 10(7) The air navigation service provider shall ensure that a facility is insta...

Section 11. Interface arrangement for support services Section interface and functional specifications of the support service;

Section 12. Record Keeping and documentation Section 12(1)(a) hold copies of relevant equipment manuals, technical standards, practices, instructions, maintenance procedures, site logbooks, systems backup data, equipment and test gear inventory and any other documentation that are necessary for the provision and operation of the facility; Section 12(1)(b) establish a procedure for the control of the documentation required under these regulations; Section 12(1)(c) keep records under the control of the relevant key personnel; Section 12(1)(d) control access to the records system to ensure appropriate security. Section 12(2) The air navigation service provider shall ensure that data and voice for air navigation service operational systems are recorded continuously and procedures established for the retention and utilization of these recordings for analysis. Section 12(3) An air navigation service provider shall maintain all documents and records which are necessary for the operation and maintenance of the service and make available copies of these documents to personnel where needed. Section 12(4)(a) a copy of these regulations; Section 12(4)(b) the air navigation service provider’s o...

Section 13. Operations Manual Section 13(1) An Air Navigation Services Provider shall develop an operations manual that demonstrates the Air Navigation Services Provider’s compliance with these regulations. Section 13(2)(a) the information required of the Air Navigation Services Provider in accordance with these regulations; Section 13(2)(b) an organization chart of the Air Navigation Services Provider and its maintenance contractors, if any, that shows the position of each personnel and the name, qualification, experience, duties and responsibilities of personnel who are responsible for ensuring the compliance of the organization with the requirements described in these regulations; Section 13(2)(c) an overall operation and maintenance plan for the aeronautical telecommunication service, and for each facility, an operation and maintenance plan, as described in these regulations document; Section 13(2)(d) for each facility, information on the compliance of the facility with these regulations and the applicable aeronautical telecommunication standards; and Section 13(2)(e) the system performance target of each facility, such as its availability and reliability. Section 13(3) The ope...

Section 14. Periodic Inspection, Testing and Security of ANSP facilities Section 14(1) An Air Navigation Services provider shall establish a procedure for the periodic inspection and testing of the communication, navigation and surveillance systems to verify that each facility meets the applicable operational requirements and performance specifications for that facility. Section 14(2)(e) that appropriate inspection, measuring and test equipment are available for staff to maintain the operation of each facility; Section 14(2)(f) the control, calibration and maintenance of such equipment so that they have the precision and accuracy necessary for the measurements and tests to be performed. Section 14(3)(a) security of the facility and site; Section 14(3)(b) adherence to the approved maintenance programme; Section 14(3)(c) upkeep of the equipment, building, site and site services; and Section 14(3)(d) adequacy of facility records and documentation. Section 14(4) The air navigation service provider shall establish a security programme for the communication, navigation and surveillance facility. Section 14(5) The security programme required under sub regulation (4) shall specify the phys...

Section 15. Flight Inspection and facility check after accident or incident Section ensure that radio navigation aids are available for use by aircraft engaged in air navigation and that the radio navigation aids are subjected to periodic ground and flight inspections; and

Section 16. Communication Navigation Services (CNS) Personnel Training and Other Requirements Section 16(1)(a) ensure that it employs sufficient number of personnel who possess the skills and competencies required in the provision of the aeronautical telecommunication service; Section 16(1)(b) provide in the Manual of Air Navigation Services Operations an analysis of the personnel required to perform the Communication Navigation and surveillance services for each facility taking into account the duties and workload required; Section 16(1)(c) develop job descriptions for each of its staff that depict the job purpose, key responsibilities, and outcome to be achieved of each staff; Section 16(1)(d) develop an overall training policy and programme for the organization that shall lay down; Section 16(1)(e) designate an officer in charge of training and/or on-the-job training at the operational stations; Section 16(1)(f) maintain individual training records for each of its staff; Section 16(1)(g) conduct a yearly review of the training plan for each staff at the beginning of the year to identify any gaps in competency and changes in training requirement and prioritize the type of trainin...

Section 17. Facility malfunction incident and radio interference reporting and operational status of CNS systems Section 17(1) An air navigation service provider shall establish procedures for the reporting, collection and notification of facility malfunction incidents and safety incidents. Section 17(2) The procedures in subregulation (1) shall be documented in the Manual of Air Navigation Services Operations. Section 17(3)(a) determine the cause of the incidents and determine any adverse trends; Section 17(3)(b) implement corrective and preventive actions where necessary to prevent recurrence of the incidents; and Section 17(3)(c) implement any measures to improve the safety performance of the aeronautical telecommunication service. Section 17(4)(a) report any serious service failure or safety incident to the Authority and investigate such incidents in order to establish how and why the incident happened, including possible organizational contributing factors and to recommend actions to prevent a recurrence; and Section 17(4)(b) ensure that information on the operational status of each communication, navigation and surveillance facility that is essential for the enroute, approach...

Section 18. Proficiency certification program Section 18(1) An Air navigation service provider shall develop proficiency certification program for Air Traffic Safety Electronics Personnel engaged in the installation, training, operations and maintenance of Communication, Navigation and Surveillance systems in accordance with guidelines prescribed by the Authority. Section 18(2) The Authority shall certify Air Traffic Safety Electronics Personnel involved in the installation, training, operations and maintenance of Communication, Navigation and Surveillance systems in accordance with Civil Aviation Regulations.

Section 19. Safety case, notification of Aeronautical facility status and interruption to service Section 19(1) The air navigation service provider shall ensure that for safety critical systems, including automated air traffic control systems, communication systems and instrument landing systems, the commissioning of such systems shall include the conduct of a safety case or equivalent. Section 19(2) The air navigation service provider shall ensure that human factors principles are observed in the design, operations and maintenance of aeronautical telecommunication facilities. Section 19(3)(a) information on the operational details of any new facility for publication in the Aeronautical Information Publication; and Section 19(3)(a)(i) information on the operational details of any new facility for publication in the Aeronautical Information Publication; and Section 19(3)(a)(ii) information concerning any change in the operational status of any existing facility, for the issue of a Notice to Airmen; Section 19(3)(b) ensure that the information forwarded under subparagraph (a) has been accurately published. Section 19(4)(a) establish a procedure to be used in the event of interruption...

Section 20. Support of Aeronautical Telecommunication Network Application Section 20(1)(a) Air Traffic Services communications with aircraft; Section 20(1)(b) Air Traffic Services Communications between air traffic service units; Section 20(1)(c) Aeronautical Operational Control Communications; and Section 20(1)(d) Aeronautical Administrative Communications. Section 20(2) Aeronautical Telecommunication Network communication services in subregulation (1) shall support Aeronautical Telecommunication Network applications.

Section 21. Requirements for implementation of Aeronautical Telecommunication Network Section 21(1) Requirements for implementation of the Aeronautical Telecommunication Network shall be made on the basis of regional air navigation agreements. Section 21(2) The agreements in subregulation (1) shall specify the area in which the communication standards for the Aeronautical Telecommunication Network/Open System Interconnection or the Aeronautical Telecommunication Network/Internet Protocol Suite are applicable. Section 21(3) The Aeronautical Telecommunication Network shall either use International Organization for Standardization, communication standards for Open Systems Interconnection or use the Internet Society communications standards for the Internet Protocol Suite. Section 21(4) The Aeronautical Fixed Telecommunication Network/Aeronautical Message Handling System gateway shall ensure the interoperability of Aeronautical Fixed Telecommunication Network stations and networks with the Aeronautical Telecommunication Network. Section 21(5) An authorized path(s) for the Aeronautical Fixed Telecommunication Network shall be defined on the basis of a predefined routing policy. Section...

Section 22. Aeronautical Telecommunication Network Applications Requirements Section 22(1) The Aeronautical Telecommunication Network shall support the Data Link Initiation Capability applications when air-ground data links are implemented. Section 22(2)(a) directory information retrieval; and Section 22(2)(b) directory information modification.

Section 23. Air-ground applications Section Automatic Dependent Surveillance – Contract;

Section 24. Ground-Ground Applications Section Air Traffic Service Interfacility Data Communication; and Ground-Ground Applications.

Section 25. Aeronautical Telecommunication Network/Internet Protocol Suite upper layer communications service Section An Aeronautical Telecommunication Network host shall be capable of supporting the Aeronautical Telecommunication Network/Internet Protocol Suite upper layers including an application layer.

Section 26. Aeronautical Telecommunication Network /Open System Interconnection upper layer communications service Section An Aeronautical Telecommunication Network /Open System Interconnection end-system shall be capable of supporting the Open System Interconnection Upper Layer Communications Service including session, presentation and application layers.

Section 27. Aeronautical Telecommunication Network/Internet Protocol Suite communications service Section 27(1)(a) transport layer in accordance with Transmission Control Protocols and User Datagram Protocols; and Section 27(1)(b) network layer in accordance with Internet Protocol version 6. Section 27(2) An Internet Protocol Suite router shall support the Aeronautical Telecommunication Network layer in accordance with Internet Protocol (version 6) and multiprotocol extensions.

Section 28. Aeronautical Telecommunication Network/Open System Interconnection communications service Section 28(1)(a) transport layer in accordance with International Organization for Standardization Transport Protocol Class 4 and optionally Connectionless Transport Protocol; and Section 28(1)(b) network layer in accordance with International Organization for Standardization, Connectionless Network Protocol. Section 28(2) An ATN Intermediate System shall support the Aeronautical Telecommunication Network layer in accordance with International Organization for Standardization, Connectionless Network Protocol and International Organization for Standardization, Inter-domain routing protocol.

Section 29. Aeronautical Telecommunication Network Naming And Addressing Requirements Section 29(1)(a) provisions for unambiguous application identification and addressing; and Aeronautical Telecommunicatio n Network Naming And Addressing Requirements. Section 29(1)(b) means to unambiguously address all Aeronautical Telecommunication Network end-systems and intermediate systems. Section 29(2) The Aeronautical Telecommunication Network addressing and naming plans shall allow Authority and Organizations to assign addresses and names within their own administrative domains.

Section 30. ATN security requirements Section 30(1)(a) make provisions whereby only the controlling Air Traffic Services unit may provide Air Traffic Control instructions to aircraft operating in its airspace; Section 30(1)(b) enable the recipient of a message to identify the originator of that message; and Section 30(1)(c) be protected against service attacks to a level consistent with the application service requirements. Section 30(2) Aeronautical Telecommunication Network end-systems supporting Aeronautical Telecommunication Network security services shall be capable of authenticating the identity of peer end-systems, authenticating the source of messages and ensuring the data integrity of the messages.

Section 68. Service via satellite for the dissemination of Aeronautical Information Section Point-to-multipoint telecommunication service via satellite to support the dissemination of Aeronautical Information shall be based on full-time, non-pre-emptible, protected services as defined in the relevant Telecommunication Standardization Sector of the International Telecommunications Union Recommendations.

Section 69. Service via satellite for the dissemination of World Area Forecast System products Section frequency — C-band, earth-to-satellite, 6 Gigahertz band, satellite-to-earth, 4 Gigahertz band;

Section 31. Aeronautical Mobile-Satellite (Route) Service Section 31(1) A mobile-satellite system intended to provide Aeronautical Mobile-Satellite (Route) Service shall conform to the requirements of these Regulations. Section 31(2) An Aeronautical Mobile-Satellite (Route) Service system shall support packet data service, voice service or both. Section 31(3) Requirements for mandatory carriage of AMS (R) S system equipment including the level of system capability shall be made on the basis of regional air navigation agreements which specify the airspace of operation and the implementation timescales for the carriage of equipment and the level of system capability shall include the performance of the Aircraft Earth Station, the satellite and the Ground Earth Station. Section 31(4) The agreements specified in sub regulation (3) shall provide at least a notice of two years of mandatory carriage of airborne systems. Section 31(5) The Authority shall coordinate with national authorities and service providers the implementation aspects of an Aeronautical Mobile-Satellite (Route) Service system that permit worldwide interoperability and optimum use, as appropriate.

Section 32. RF Characteristics Section 32(1) When providing Aeronautical Mobile-Satellite (Route) Service communications, an Aeronautical Mobile-Satellite (Route) Service system shall operate only in frequency bands which are appropriately allocated to Aeronautical Mobile-Satellite (Route) Service and protected by the International Telecommunications Union Radio Regulations. Section 32(2) The total emissions of the Aircraft Earth Station necessary to meet designed system performance shall be controlled to avoid harmful interference to other systems necessary to support safety and regularity of air navigation, installed on the same or other aircraft. Section 32(3) Emissions from an Aeronautical Mobile-Satellite (Route) Service system Aircraft Earth Station shall not cause harmful interference to an Aircraft Earth Station providing Aeronautical Mobile-Satellite (Route) Service on a different aircraft. Section 32(4) The Aircraft Earth Station equipment shall operate properly in an interference environment causing a cumulative relative change in its receiver noise temperature ( ΔT/T ) of 25 per cent.

Section 33. Priority and pre- emptive access Section 33(1) Every aircraft earth station and ground earth station shall be designed to ensure that messages transmitted in accordance with Civil Aviation (Communication Procedures) Regulations including their order of priority, are not delayed by the transmission and reception of other types of messages. Section 33(2) As a means to comply with the sub regulation (1) message types not defined in the Civil Aviation (Communication Procedures) Regulations shall be terminated even without warning, to allow messages specified in the Civil Aviation (Communication Procedures) Regulations 2017 to be transmitted and received. All Aeronautical Mobile-Satellite (Route) Service data packets and all Aeronautical Mobile-Satellite (Route) Service voice calls shall be identified as to their associated priority. Section 33(3) The system shall provide voice communications priority over data communications within the same message category.

Section 34. Signal acquisition and tracking Section 34(1) The Aircraft Earth Station, Ground Earth Station and satellites shall properly acquire and track service link signals when the aircraft is moving at a ground speed of up to 1 500 km/h (800 knots) along any heading. Section 34(2) The Aircraft Earth Station, Ground Earth Station and satellites shall properly acquire and track service link signals when the component of the aircraft acceleration vector in the plane of the satellite orbit is up to 0.6 g.

Section 35. Designated Operational Coverage Section An Aeronautical Mobile-Satellite (Route) Service system shall provide Aeronautical Mobile-Satellite (Route) Service throughout its designated Operational coverage.

Section 36. Failure notification Section provide timely predictions of the time, location and duration of any resultant outages until full service is restored in the event of a service failure; and

Section 37. AES requirements Section in straight and level flight throughout the designated operational coverage of the satellite system; or

Section 38. Packet data service performance Section 38(1) If the system provides AMS (R) S packet data service, it shall meet the standards of regulations 40 and 41. Section 38(2) Where an Aeronautical Mobile-Satellite (Route) Service system provides packet data service, it shall be capable of operating as a constituent mobile sub network of the Aeronautical Telecommunication Network.

Section 39. Delay Parameters Section 39(1) Connection establishment delay shall not be greater than 70 seconds. Section 39(2) Data transit delay values shall be based on a fixed sub- network service data unit length of 128 octets in accordance with ISO and shall be defined as average values. Section 39(3) Data transit delay from aircraft shall not be greater than 40 seconds for the highest priority data service. Section 39(4) Data transit delay from aircraft shall not be greater than 28 seconds for the lowest priority data service. Section 39(5) Data transit delay to aircraft shall not be greater than 12 seconds for the highest priority data service. Section 39(6) Data transit delay to aircraft shall not be greater than 28 seconds for the lowest priority data service. Section 39(7) Data transfer delay (95th percentile), shall not be greater than 80 seconds for the highest priority data service. Section 39(8) Data transfer delay (95th percentile) from-aircraft, shall not be greater than 60 seconds for the lowest priority data service. Section 39(9) Data transfer delay (95th percentile) to-aircraft shall not be greater than 15 seconds for the highest priority data service. Section 39...

Section 40. Integrity Section 40(1) The residual error rate in the from-aircraft direction shall not be greater than 10-4 per sub-network service data unit. Section 40(2) The residual error rate in the to-aircraft direction shall not be greater than 10-6 per sub-network service data unit. Section 40(3) The probability of a Sub Network Connection provider- invoked Sub Network Connection release shall not be greater than 10-4 over any one-hour interval. Section 40(4) The probability of a sub-network connection provider-invoked reset shall not be greater than 10-1 over any one-hour interval.

Section 41. Voice service performance Section The system that provides Aeronautical Mobile-Satellite (Route) Service voice service shall meet the requirements in regulations 43 44 and 45.

Section 42. Call Processing Delay Section 42(1) The 95th percentile of the time delay for a GES to present a call origination event to the terrestrial network interworking interface after a call origination event has arrived at the AES interface shall not be greater than 20 seconds. Section 42(2) The 95th percentile of the time delay for an AES to present a call origination event at its aircraft interface after a call origination event has arrived at the terrestrial network interworking interface shall not be greater than 20 seconds.

Section 43. Voice Quality Section 43(1) The voice transmission shall provide overall intelligibility performance suitable for the intended operational and ambient noise environment. Section 43(2) The total allowable transfer delay within an Aeronautical Mobile-Satellite (Route) Service sub network shall not be greater than 0.485 seconds.

Section 44. Voice Capacity Section The Aeronautical Mobile-Satellite (Route) Service system shall have sufficient available voice traffic channel resources such that an Aircraft Earth Stationor Ground Earth Station originated Aeronautical Mobile-Satellite (Route) Service voice call presented to the system shall experience a probability of blockage of no more than 10 -2 .

Section 45. Security Section of messages in transit from tampering.

Section 46. System Interfaces Section An Aeronautical Mobile-Satellite (Route) Service system shall allow sub-network users to address Aeronautical Mobile-Satellite (Route) Service communications to specific aircraft by means of the ICAO 24-bit aircraft address.

Section 47. Packet data service interfaces Section an interface to the Aeronautical Telecommunication Network; and

Section 48. Air Ground Data Link Communication Section the Mode S characteristics shall be as specified in Second Schedule to these Regulations;