1. ATSOCAS
“Netherthorpes
hangers are near the
Queens head”

2. ‘Air Traffic Services Outside Controlled Airspace’
ATSOCAS
‘Air Traffic Services
Outside Controlled Airspace’
ATSOCAS 1

3. ATSOCAS effective from 12 March 2009

4. Where will the ATSOCAS rules apply?
Classes F & G airspace, which is everywhere outside controlled airspace, and in active TRAs.
…This is an… ‘unknown traffic environment’
RULES APPLY

5. 4 levels of Service Basic Traffic Deconfliction Procedural

6. Basic Service
Pilot: Maximum autonomy…. Without controller agreement – can alter heading, route or level at will.
Controller/FISO: NO involvement in collision avoidance.
Transponder code…can be allocated!
IMC: NOT appropriate.
BASIC

7. Traffic Service Pilot: Responsible for collision avoidance.
Controller: Provide information about surveillance derived traffic that may conflict. NO avoidance advice. Aircraft has to be identified.
IMC: NOT appropriate.
TRAFFIC

8. Deconfliction Service
Pilot: Must be able to accept headings or levels that will take them into IMC.
Controller: Provide information about surveillance derived traffic that may conflict. Avoidance advice given. Aircraft has to be identified.
IMC: YES… not appropriate for VFR
DECONFLICTION

9. Procedural Service
Pilot: Responsible for collision avoidance. Must be able to accept routing or level instructions for flight in IMC.
Controller: Non-surveillance service.
Issues – headings, level and time instructions.
IMC: YES…
PROCEDURAL 1

10. Procedural Service
Provided at airfields without a surveillance system to aircraft on IFR approaches or departures.
Traffic information provided on known traffic.
Transponder code can be issued ..but.. Does NOT imply a surveillance system is provided.
Deconfliction instructions will be issued.
PROCEDURAL 2

11. Summary VMC – Basic & Traffic service.
IMC - Deconfliction & Procedural service.
ATS surveillance – Traffic & Deconfliction service.
Terrain clearance – None
FISO – Basic service only
SUMMARY

12. Typical RT exchange….’Traffic service’
“Doncaster Radar G PHLY request Traffic service”
“G PHLY Doncaster Radar pass your message”
“G PHLY Cessna 150 Netherthorpe to Sherburn 2 miles west of Netherthorpe at 2000 ft. Request Traffic service”
“G LY Traffic service, squawk 6160 QNH 1012, remain clear of controlled airspace, report approaching the M62”
“ Squawk 6160 QNH 1012,remain clear of controlled airspace, report M62, G LY”
RT - TRAFFIC

13. Typical RT exchange..’Deconfliction service’
“Waddington Radar G PNIX for Deconfliction service”
“G PNIX Waddington Radar pass your message”
“G PNIX Cessna 150 Netherthorpe to Fenland 2 miles north of Mansfield at 2000 ft. Request Deconfliction service”
“G IX Deconfliction service, remain clear of controlled airspace, climb and report level 3000ft QNH 1001 and squawk 3606”
“ Remain clear of controlled airspace, climb and report level 3000ft QNH 1001,squawking 3606, G IX”
RT - DECONFLICTION

14. Presentation available at: www.phoenix-flying.co.uk
“Any Questions?”
ANY QUESTIONS
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