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IVAO SLOVENIA

IVAO AUSTRIA

LETTER OF AGREEMENT between

LJLA (FIR Ljubljana)

and LOVV (FIR Wien)

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LETTER OF AGREEMENT between

IVAO Slovenia Division

ACC LJUBLJANA (LJLA_CTR) / APP Maribor (LJMB_APP)

and

IVAO Austria Division

ACC WIEN (LOVV_CTR) / APP Graz (LOWG_APP) /

APP Klagenfurt (LOWK_APP)

Effective date: 15. May 2019

EDITION: 1

1. General Purpose

The purpose of this Letter of Agreement (LoA) is to define the coordination procedures to be applied between ACC Ljubljana (LJLA_CTR), ACC Wien (LOVV_CTR), APP Maribor (LJMB_APP), APP Graz (LOWG_APP) and APP Klagenfurt (LOVK_APP) when providing virtual air traffic services (ATS) to General Air Traffic (GAT) and IFR/VFR Operational Air Traffic (OAT) on the IVAO virtual network. These procedures are supplementary to those specified in real life ICAO regulations, IVAO regulations, Community Regulations, inter-State or inter air traffic service provider’s agreements and/or all other National documents.

2. Operational Status The parties shall keep each other advised of any changes in the operational status of their facilities and navigational aids which may affect the procedures specified in this LoA. LoA document must be reviewed at least annually by all two parties.

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3. Abbrevations

ACC Area Control Center ACFT Aircraft AMSL Above Mean Sea Level AoR Area of Responsibility APP Approach / Approach Control Office ATC Air Traffic Control

ATCO Air Traffic Controller ATS Air Traffic Service C/S Call Sign

COMMBox Communication application in IVAO Virtual ATC Client (IvAc) COP Coordination Point CTA Control Area DEP Departure / departing / Aerodrome of departure DES Destination / Aerodrome of destination

DIR / ADIR Director / Assistant Director eAIP Electronic Aeronautical information Publication EUR Europe(an) FIR Flight Information Region FIS Flight Information Service FL Flight Level

FLAS Flight Level Allocation Scheme(s) FRA Free Route Airspace FSS Flight Service Station FT Feet

GAT General Air Traffic HQ Headquarters

ICAO International Civil Aviation Organization IFR Instrument Flight Rules

IVAO International Virtual Aviation Organization LoA Letter of Agreement LoR Line(s) of Responsibility N/A Not Applicable NM Nautical Mile(s) NOP Network Operation Portal OAT Operational Air Traffic QNH Altimeter subscale setting to obtain elevation when on ground RAD Route Availability Document RB Radar Borders

RVSM Reduced Vertical Separation Minimum SECSI FRA South East Common Sky Initiative Free Route Airspace

STAR Standard Arrival Route TMA Terminal Area TWR Tower / Tower Control unit VFR Visual Flight Rules

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4. Airspace Classification

4.1. Slovenia Airspace Classification

Click for full chart (AIRAC AMDT 093/2019, 20.6.2019)

4.2. Austria Airspace Classification

Click for full chart (AIRAC AMDT 261/2019, 26.4.2019)

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5. Areas of Responsibility, Lines of Responsibility and Delegation of the Responsibility for the Provision of ATS

5.1. Areas of Responsibility (AoR)

Radar FIR border (RB)

Click for full En-Route Charts (AIRAC AMDT 093/2019, 20.6.2019)

Map 1: ATC Sectors – Index Chart

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5.2. Delegation of the Responsibility for the Provision of ATS In the interest of a safe and expeditious flow of virtual air traffic, IVAO Slovenia Division and IVAO Austria Division (the parties) have mutually delegated the responsibility for the provision of ATS along the agreed Lines of Responsibility (LoR). The parties reserve the right to revoke this delegation at any time. When providing ATS, ACC Ljubljana and ACC Wien / APP Klagenfurt shall observe the airspace classification applicable within the airspace concerned.

5.2.1. ATS delegated »Sector MURA« to ACC WIEN In the volume of airspace of FIR Ljubljana situated east of RUSE Line ATS is delegated to ACC Wien. Vertical extent: FL 125 – FL660. (See Map 2 below)

5.2.2. ATS Delegated Area DRAU SOUTH to ACC LJUBLJANA Volume of airspace of FIR Wien situated South of SOBOTH Line. Vertical extent: FL165 – FL660. (See Map 2 below)

5.2.3. ATS Delegated Area KLAGENFURT to ACC LJUBLJANA Volume of airspace of FIR Wien situated South of KLAGENFURT Line. Vertical extent: • During service of APP Klagenfurt (LOWK_APP)

FL125 – FL165 • Out of service of APP Klagenfurt (LOWK_APP)

lower limit of controlled airspace – FL165. (See Map 2 below)

5.2.4. ATS Delegated Area DIPSA to ACC WIEN Volume of airspace of FIR Ljubljana situated Northwest of DIPSA Line. Vertical extent: 9500 FT AMSL – FL165. (See Map 2 below)

5.3. Relevant ATS Units

ATS Callsign IVAO Login Frequency Ljubljana Radar LJLA_CTR 135.275

Ljubljana Radar (FL245+) LJLA_U_CTR 130.235; 121.330; 119.885 Ljubljana FIC LJLA_F_FSS 118.475

Maribor Approach LJMB_APP 119.200 Wien Radar LOVV_CTR 134.350 Wien Radar LOVV_S_CTR 133.800

Wien FIC LOVV_FSS 124.400 Klagenfurt Approach LOWK_APP 126.825

Graz Approach LOWG_APP 119.300 Graz Tower LOWG_TWR 118.200

Padova Center LIPP_CTR 120.725 Padova Center LIPP_FSS 124.150

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Map 2: LoR, AoR ans Relase Area RADLY

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6. Flight Level Allocation Scheme (FLAS) Flight level allocation to be applied according to the tables below: 6.1. Departures shall be cleared:

DEP from to/via/DES FLAS conditions

EDDF, EDDN, EDDS,

EDTY, EDQ*, EDJA,

EDNY, LSZH. LSZR, LSZS,

LSMD

ACC Wien

ACC Ljubljana

N/A

(not applicable)

at FL

EDDM ACC Wien ACC Ljubljana N/A at FL

LOWS ACC Wien ACC Ljubljana max FL300 Climbing

LoR FL250+

LOWI, LOWL ACC Wien ACC Ljubljana max. FL300 at FL

LOXZ ACC Wien ACC Ljubljana N/A Climbing

LoR FL250+

LIPZ, LIPH ACC Ljubljana ACC Wien S

ACC Wien W

N/A

max. FL330

at FL

LDZD ACC Ljubljana ACC Wien W

ACC Wien S

max. FL330

max. FL340

at FL

LDPL, LDRI, LDLO ACC Ljubljana ACC Wien S

ACC Wien W

max. FL320

max. FL330

Climbing

LoR FL310+

LOWW ACC Wien ACC Ljubljana max. FL320 Climbing

LoR FL250+

LDZA ACC Ljubljana ACC Wien S

ACC Wien W

max. FL280

max. FL320

Climbing

LoR FL170+

LJLJ ACC Ljubljana ACC Wien S

ACC Wien W

max. FL270

max. FL280

Climbing

LoR FL170+

LOWK APP Klagenfurt* ACC Ljubljana max. FL150 Climbing

LoR FL130+

LJMB APP Maribor* ACC Wien

APP Graz*

max. FL260

6000ft (QNH LJMB)

at FL

at Altitude

LOWG APP Graz* ACC Ljubljana Request Climbing

LoR FL160-

LIPQ , LIPA ACC Ljubljana ACC Wien W

ACC Wien S

max. FL280

max. FL330

Climbing

LoR FL170+

* When not present: ACC Ljubljana and ACC Wien take responsibility for ATC

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6.2. Arrivals shall be cleared:

DES From / DEP to/via FLAS conditions EDNY, EDJA, LSZR ACC Ljubljana ACC Wien N/A at FL

LDZD, LQxx ACC Wien W

ACC Wien S

ACC Ljubljana max. FL350

max. FL360

at FL

LHBP ACC Ljubljana ACC Wien max. FL370 at FL

LOWI, LOWS,

EDDM, EDMx

ACC Ljubljana ACC Wien max. FL340 at FL

LZIB, LZPP, LHSM ACC Ljubljana ACC Wien max. FL330 at FL

LIPZ, LIPH ACC Wien ACC Ljubljana max. FL320 at FL

LOWL ACC Ljubljana ACC Wien max. FL340 at FL

LOWW ACC Ljubljana ACC Wien max. FL310 at FL

LOXZ ACC Ljubljana ACC Wien max. FL300 at FL

LDZA ACC Wien ACC Ljubljana max. FL290 at FL

LDPL ACC Wien S

ACC Wien W

ACC Ljubljana max. FL280

max. FL290

at FL

LDRI, LDLO ACC Wien W

ACC Wien S

ACC Ljubljana max. FL250

max. FL260

at FL

LIPQ, LIPA

ACC Wien (W)

ACC Wien (S)

ACC Ljubljana FL190

max. FL240

Desc. LoR FL240-

at FL

LOWK ACC Ljubljana APP Klagenfurt* max. FL120 at FL

LJLJ

APP Graz*

APP Klagenfurt*

ACC Wien

ACC Ljubljana

RADLY/VALLU STAR

ACC Ljubljana

LUMUS/BERTA STAR

ACC Ljubljana

VEKEN / DEGUM STAR

FL130

FL130

FL170

Descending, LoR

FL200-

Descending, LoR

FL200-

Descending, LoR

FL240-

LOWG ACC Ljubljana APP Graz* 9000 FT AMSL

QNH LJLJ

Descending, LoR

FL120-

LJMB

ACC Wien

APP Graz*

ACC Ljubljana

APP Maribor*

FL170

7000 FT AMSL

QNH LJMB

Descending, LoR

FL240-

Descending, LoR

FL120-

* When not present: ACC Ljubljana and ACC Wien take responsibility for ATC

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7. Direct Routings (Free Route Airspace) Without individual coordination all IFR flights may be cleared to the next published waypoint contained in the filed FPL located outside the transferring sector’s area of responsibility, provided that:

• the original accepting sector remains the same; • the buffer of 3 NM to the South East Common Sky Initiative Free Route Airspace (SECSI

FRA) outer border is observed. Note that RADLY is located outside the AoR of ACC Wien The responsibility for coordination of aircraft on a direct routing rests with the originating unit, in case neighboring sectors/units are penetrated additionally. Termination of approval for direct-routing can be ordered in written only by Divisions HQ (Division DIR/ADIR or Division FIR Chiefs) for justifiable reasons and for a limited time only. Information of SECSI FRA and latest AIRAC En-Route Charts are available at:

• eAIP Slovenia: http://www.sloveniacontrol.si/acrobat/aip/Operations/history-en-GB.html

• RAD document: https://www.nm.eurocontrol.int/RAD/index.html

• Eurocontrol NOP: https://www.public.nm.eurocontrol.int/PUBPORTAL/gateway/spec/index.html

Click for full En-Route Charts (AIRAC AMDT 093/2019, 20.6.2019)

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8. Transfer of Control and other rules

The transfer of control takes place over the agreed Lines of Responsibility (LoR) unless otherwise coordinated with competent on-duty ATCO. Transfer of communications shall take place not later than transfer of control. Transfer of communication shall normally occur 2 (two) minutes before the ACFT reach agreed LoR. Traffic shall be transfered from one ACC to another with horizontal distance between the ACFT not less than 10 NM within 5 minutes flying time (maintaining this distance or increasing) after passing the LoR unless vertical separation exists. When an RVSM approved aircraft is unable to continue to meet the vertical navigation accuracy required to operate within the EUR RVSM airspace, the transferring center shall inform the accepting center of that information through COMM Box communication using the term "C/S - UNABLE RVSM«. Aircraft without RVSM approval shall be transferred below FL285. For any proposed deviation from the conditions specified for transfer of control the transferring unit shall initiate respective coordination. If the accepting center cannot accept a flight offered in accordance with the conditions specified above, it shall clearly indicate its inability and specify the conditions under which the flight will be accepted.

8.1. Specific Points for Transfer of Control and Transfer of Communications

8.1.1. Release Area RADLY Volume of airspace of FIR Wien situated South of RADLY-Line. Vertical extent: FL165 – FL660 (See Map 2 at page 7) Flights from ACC Wien to ACC Ljubljana via Release Area RADLY shall be transferred to ACC Ljubljana before entering the Release Area RADLY. The separation minimum shall be 5 NM or 1000 FT/2000 FT according to EUR RVSM regulations between all traffic within the “Release Area RADLY”.

8.1.2. Arrivals at LOWG Arrivals LOWG planned via RADLY shall be cleared 9000 FT QNH Ljubljana and shall be transferred to APP Graz passing an arc 10 NM south of RADLY. These flights are released for further descent to 8000FT QNH Ljubljana and for turn to VAGIL when passing an arc 10 NM south of RADLY, provided they will enter AoR of APP Graz overhead or east of RADLY. VFR-flights at 3500 FT AMSL or below with destination LOWG shall be transferred direct to Graz TWR (LOWG_TWR) if present on IVAO network.

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9. VFR Flights Unless specially authorized by the respective ACC, VFR flights shall not be operated above FL 195. Such special approval shall not be granted for en-route VFR flights. For departure and arrival from/to controlled and uncontrolled airports VFR traffic shall use VFR reporting points prescribed on the charts. All VFR flights above FL165 shall be transmitted to Ljubljana FSS and Wien FSS. When FSS is not present, ACC Ljubljana and ACC Wien take responsibility for ATC. The table below shows the requirements for coordination with the adjacent unit at or below FL165. Whenever a flight is not proceeding via a published Coordination points - COP (as listed in the table below) best judgement shall be applied under which circumstances an estimate is required (taking into account airspace classification, further routing after COP, aircraft performance, etc.)

9.1. Northbound flights: LJLA to LOVV

COP Level ATS to transfer* Between VEKEN and ARNOS All levels LOWK_APP

Via GIMIX Below 8500 FT 8500 FT and above

LOWK_APP LOVV_FSS

Between NIPEL and DIPSA All levels LOWK_APP Between RADLY and NIDLO Below 4500 FT

4500 FT or above LOVV_FSS

LOWG_APP * When FSS and/or APP not present: ACC Wien take responsibility for ATC.

Additional requirements:

• VFR-Flights from LJMB to LOWG should be cleared via GOLVA, 3500FT AMSL and transferred to APP Graz (LOWG_APP).

• VFR-Flights via AoR APP Maribor with destination LOWW or LOAx should be cleared via MUREG.

9.2. Southbound flights: LOVV to LJLA

COP Level ATS to transfer* Between VEKEN and GIMIX Below FL115

FL115 and above LIPP_FSS

LJLA_F_FSS Between GIMIX and DIPSA All levels LJLA_F_FSS

Via RADLY All levels LJLA_F_FSS Between GOLVA and NIDLO All levels LJMB_APP

* When FSS and/or APP not present: ACC Ljubljana or ACC Padova take responsibility for ATC

Additional requirements: • VFR-Flights from LOWG to LJMB should be cleared via GOLVA 3000ft AMSL.

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10. Validity This Letter of Agreement becomes effective 15. May 2019, and supersedes any previous Letter of Agreement between ACC Ljubljana and ACC Wien.

IVAO Slovenia Division: Jure Griljc LJLA FIR Chief

IVAO Austria Division:

Stefan Kleiss LOVV FIR Chief