UK FIS Flashcards
What services are provided by INT under the UK Flight Information Services (UK FIS)?
The services provided by INT under UK FIS include:
- AS (Alerting Service)
- BS (Basic Service)
- TS (Traffic Service)
- DS (Deconfliction Service)
These services are detailed in CAP774.
What is the purpose of the Alerting Service in aviation?
The Alerting Service is provided to notify appropriate organizations about aircraft in need of Search and Rescue (SAR) aid and to assist those organizations as required.
What is a Basic Service in air traffic control, and what is the controller’s responsibility under this service?
Basic Service: An Air Traffic Service (ATS) that provides advice and information useful for the safe and efficient conduct of flights. The pilot is solely responsible for avoiding other traffic.
Controller’s Responsibility:
* Provide basic traffic information (e.g., “GABCD, traffic is a PA28 routing from Armagh to Dungannon, not above 2A VFR”).
* Do not provide surveillance-derived (clock-code) information.
* Issue a warning if a definite risk of collision is identified.
What is a Traffic Service in air traffic control, and what are the controller’s responsibilities under this service?
Traffic Service: A surveillance-based Air Traffic Service (ATS) that, in addition to Basic Service provisions, provides specific surveillance-derived traffic information to help the pilot avoid other traffic.
Controller’s Responsibilities:
- Identify the aircraft and inform the pilot that it is identified, maintaining that identity.
- Aim to pass traffic information on relevant aircraft before they are within 5 NM, allowing the pilot time to take necessary avoidance actions.
- Provide headings and/or levels for positioning and sequencing but is not required to achieve deconfliction minima.
- Ultimately, the pilot is responsible for avoiding other traffic.
Note: If deconfliction advice is needed outside controlled airspace, the pilot must request a Deconfliction Service.
What is a Deconfliction Service, and what are the key responsibilities of the controller under this service?
Deconfliction Service: A surveillance-based Air Traffic Service (ATS) where the controller provides specific surveillance-derived traffic information and issues headings and/or levels aimed at achieving planned deconfliction minima. This is in addition to the provisions of a Basic Service. However, the pilot remains ultimately responsible for avoiding other traffic.
Key Responsibilities of the Controller:
- Traffic Information: Provide detailed traffic information, especially if separation may become less than 3 NM laterally or 3,000 feet vertically.
- Headings and Levels: Issue headings and levels for achieving planned deconfliction or for positioning/sequencing.
- Separation Minima: Ensure a minimum separation of 5 NM or 3,000 feet against unknown or uncoordinated traffic.
- Identification and Terrain Safety: Ensure the aircraft is identified and maintain terrain safety.
Service Type Comparison:
- Basic: Any flight rules, no identification required, terrain safety is the pilot’s responsibility, general traffic info.
- Traffic: Any flight rules, identification required, controller provides traffic info and headings, pilot responsible for deconfliction.
- Deconfliction: IFR, identification required, controller responsible for providing deconfliction minima, traffic info, and terrain safety.
How does radar availability affect the types of UK Flight Information Services (UK FIS) that can be provided?
- Alerting Service: Available with PSR, SSR only, and non-radar.
- Basic Service: Available with PSR, SSR only, and non-radar.
- Traffic Service: Available with PSR and SSR only (limited to transponding aircraft), not available with non-radar.
- Deconfliction Service: Available with PSR, not available with SSR only or non-radar.
Note: During SSR-only operations, the Traffic Service provides reduced traffic information, applicable only to transponding aircraft.
