ENR 1.9  Air traffic flow management (ATFM)

1.9.1  AIR TRAFFIC FLOW MANAGEMENT STRUCTURE, SERVICES PROVIDED, LOCATION OF UNITS AND HOURS OF OPERATION

1.9.1.1 Flow Management (FM) service in the airspace of the Czech Republic is provided by the Network Manager (NM) Brussels.
1.9.1.1.1 Geographic area of operation as well as the scope of services provided in individual areas are defined in the Network Operations Handbook, available on Internet address:

www.public.nm.eurocontrol.int/PUBPORTAL/gateway/spec/index.html

1.9.1.2 All aircraft operators (A.O.) operating inside the airspace of the Czech Republic, out of it and into it have a right to communicate with the subsystems of NMOC without the intermediary of AROs. The subsystems of NMOC are Integrated Initial Flight Plan Processing System (IFPS) and ETFMS.
1.9.1.3 All procedures applied in direct communication between an Aircraft Operator and NMOC must be in compliance with the Network Operations Handbook.
1.9.1.4 The ability of AROs to act as mediator of flight plans and associated messages filing, remains unchanged. The national system will provide the re-distribution of IFPS Operational Reply Messages (ACK-MAN-REJ).
1.9.1.5 Information about the Time Slot allocated, changes of Time Slot, cancellation of Time Slot for those A.Os who have not identified themselves to NMOC is available at the ARO of the airport of departure at and after the time EOBT - 2 hours. The Slot Time changes offers to those aircraft operators not identified by NMOC are available at ARO of the airport of departure. The departure Slot is created by the Calculated Take Off Time (CTOT) minus 5, plus 10 minutes.
1.9.1.5.1 Before combined VFR/IFR flight from uncontrolled aerodrome the pilot-in-command shall check information about the Time Slot allocated for planned flight with PRAHA FIC,

Telephone:  +420 220 374 393

1.9.1.6 The Central ATS Reporting Office Praha can provide information about Time Slot allocated to any flight departing from any airport in the Czech Republic at the time EOBT - 2 hours and later.
1.9.1.7 The Central ATS Reporting Office can mediate distribution of any ATS messages and ATFM messages having the impact on resulting CTOT.
1.9.1.8  of the departure aerodrome has the Time Slot information at its disposal. The departure will not be cleared outside the allocated Time Slot or, in case of Flight Suspension Message (FLS) reception or, if the Time Slot has not been received for a flight which is the subject of flow control restriction.
1.9.1.8.1 Flight Information Centres have the Time Slot information at their disposal. The IFR ATC clearance will not be issued for the IFR section of the combined VFR/IFR flight in accordance with the filed flight plan into the airspace where a flow control is under way if take off has been carried out outside the allocated SLOT.
1.9.1.8.2 Flight Activation Monitoring - FAM

  1. Any expected delay of 15 minutes or more in regard EOBT adduced in FPL or most recently updated shall be announced by means of DLA message.

  2. The DLA message shall not be sent if the only reason for delay is the slot allocation.

  3. The DLA message shall be sent with no respect to the eventually allocated slot.

    Example: EOBT based on FPL- 1000, CTOT based on SAM received - 1030. For the reason different from the allocated CTOT, the flight in question is able to commence taxiing not sooner than 1015. Even in such a case the DLA message shall be sent.

  4. If the flight in question does not depart within 15 minutes from ETOT or within 15 minutes from CTOT the Operator and respective airport control tower will receive Flight Suspension Message - FLS:

    TITLE FLS
    ARCID ABC1234
    IFPLID AA12345678
    ADEP LPPR
    ADES LFPG
    EOBD 020514
    EOBT 0500
    COMMENT NOT REPORTED AS AIRBORNE
    TAXITIME 0012

  5. The departure clearance or start up and taxi clearance will not be granted to the flights in question in such a case.

  6. Subsequently the Operator in question shall send a DLA message to up-date the EOBT of the flight.

  7. Both the Operator and the airport control tower will subsequently receive either a De-Suspension Message - DES or a Slot Allocation Message - SAM in response from NMOC.

  8. The procedure will be applied for IFR and combined flights.

  9. If push-back, start-up or taxi clearance are asked for later than according to the flight plan + 15 minutes, or later than the last updated EOBT plus 15 minutes and the traffic situation indicates that the FLS (Flight Suspension) message based on FAM procedures could be received during subsequent taxiing or closely before take-off, the clearance can be denied and the flight in question can be exhorted to send message. On request the DLA message sending can be mediated by the control tower in question.

1.9.1.8.3 Special Status Flights (STS) - Exemptions from the Flow Management Measures

The exemptions from the Air Traffic Flow Management (ATFM) measures are granted only for the flights departing from the FIR PRAHA.

1.9.1.8.3.1 The following flights are exempted from ATFM measures:

  1. Flights transporting Head of State or equivalent status ["STS/HEAD"].

    Flight with permission, “HEAD” is also considered a flight operated for subsequent transport head of state or equivalent status. For “HEAD” is not considered a return flight or any other flight segment after transporting head of state or equivalent status, unless that person is on board.

  2. Flights conducting search and rescue operations ["STS/SAR"].

    Flight for the purpose of search and rescue operations shall apply:

    1. flight performing its SAR activities;

    2. flight into space, where a search and rescue operation will be performed.

    For SAR is not considered a return flight after the completion of the search and/or rescue operations.

  3. Flights performing a life-critical emergency evacuation ["STS/MEDEVAC"].

    Flight for this purpose means:

    1. Flight with a life-endangered patient on board.

    2. Flight to pick up a life-endangered patient.

    3. Flights transporting human blood for transfusion and flights transporting human organs for transplantation.

    4. Flights to pick up aforementioned blood or live human organs for transplantation.

    5. Flights to pick up a life-endangered person or persons in the event of natural disasters or local unrest and flights with such persons on board.

    6. Flights for the transport of rescue teams and supplies into the affected areas by natural disasters.

    For “MEDEVAC” flights it is not considered returned or subsequent flight after the completion of any of the above mentioned activities, or flight conducted for the purpose of routine supplies in humanitarian actions.

  4. Flights engaged in fire-fighting ["STS/FFR"].

    Flight involved in the fire-fighting means a flight into space its own fire-fighting operations conducted under IFR-GAT flight plan. For FFR flight is not considered returned or subsequent flight after the end of extinguishing operations.

  5. Flights authorized by the relevant States Authorities to include in the flight plan ["STS/ATFMX"].

A prior permission is required before the use of the indicator referred to in point e). Flight plan submitter shall apply for an exemption in accordance with the rules set out below.

No prior permission is required to use the indicator referred to in points a) to d).

In retrospect the operator/flight plan submitter is obliged to give evidence of the legitimacy to the appropriate state supervisory authority that the flight was actually at some of the above purpose performed.

Flights conducted within the framework of the “Open Skies” are also subject to the rules for obtaining exemption from ATFM measures.

All “Open Skies” treaty flights shall operate with the callsign “OSY”. Three types of flight are allowed, with the last letter of the callsign indicating the type of flight:

  • F - An observation mission.

    Such flights may contain, the indicator STS/ATFMX, and a remark indicating that the route has been approved and coordinated with the relevant National Authorities.

  • D - A demonstration flight.

    These flights may contain the indicator STS/ATFMX, and a remark indicating that the route has been approved and coordinated with the relevant National Authorities.

  • T - A transport flight.

    These flights shall receive no special status or priority, and shall be subject to the normal IFPS processing.

1.9.1.8.3.2 The request submission for the exemption

The request for the exemption shall be addressed in working days to CAA at least 24 HRs in advance:

E-mail:  atfmx@caa.gov.cz

where all the requests are registered. For the exemption to be granted the flight plan originator may ask only when demonstrates acceptable reasons for the urgency of flight, under which the request can be approved.

The request for the exemption shall comprise the following items of information:

  1. The reason of the request (to give reasons urgency of flight, which is to be considered).

  2. The aircraft operator identification.

  3. The flight identification.

  4. The airport of departure.

  5. The airport of destination.

  6. The date of flight.

If the exemption is granted the submitter shall receive the confirmation of the exemption granted and after that is entitled to use “STS/ATFMX” in the flight plan.

1.9.1.9 General advisory service and advisory service in particular situations is provided by:
Post:

Flow Management Position - Praha
Air Navigation Services of the Czech Republic
ACC - Flow Management Position Praha
Navigační 787
252 61 Jenec

Telephone:  +420 220 374 394

Telephone:  +420 220 374 386

Telefax:  +420 220 374 252

AFS:  LKPRZDZX

AFS:  LKPRZDZS

1.9.1.9.1 The Flow Management Position is located at PRAHA ACC in IATCC.
1.9.1.9.2 The Hours of FMP operation: H24

1.9.2  TIME SLOT ALLOCATION PROCEDURES AND DIALOGUE WITH ETFMS SUBSYSTEM

1.9.2.1 The flights of all operators are generally considered as Ready For Improvement - RFI. It means that any already allocated CTOT can be changed to later or earlier time without sending a Slot Improvement Proposal - SIP message. The only exemption are the flights adduced in paragraph ENR 1.9 para 2.2
1.9.2.2 Individual flights can be exempted from the Ready For Improvement status by sending a Slot Improvement Proposal Wanted - SWM message (see paragraph ENR 1.9 para 2.20).
1.9.2.3 Intentionally left blank.
1.9.2.4 The dialogue with ETFMS is executed by means of ATFM messages. These messages could be sorted out into three categories:

  1. Messages sent by ETFMS to aircraft operator and ATC:

    1. SAM - Slot Allocation Message

    2. SRM - Slot Revision Message

    3. SLC - Slot Requirement Cancellation Message

    4. FLS - Flight Suspension Message

    5. ERR - Error Message

    6. DES - De-Suspension Message

  2. Messages sent to aircraft operator only:

    1. SIP - Slot Improvement Proposal Message

    2. RRP - Rerouting Proposal

    3. RRN - Rerouting Notification

  3. Messages sent by aircraft operator to ETFMS:

    1. SPA - Slot Improvement Acceptance

    2. SRJ - Slot Improvement Rejection

    3. SMM - Slot Missed Message

    4. FCM - Flight Confirmation

    5. RJT - Rerouting Proposal Rejection Message

    6. RFI - Ready For Improvement Message

    7. SWM - SIP Wanted Message

  4. Messages sent by ATC to ETFMS:

    1. REA - Ready Message

This message distribution system can be complied with, provided that all aircraft operators have identified themselves to NMOC properly. If not, messages of both categories 1) and 2) are available at the Central ATS Reporting Office Praha. The Central ATS Reporting Office Praha is able to mediate sending category 3) messages to ETFMS.

1.9.2.4.1 Based on the individual agreement, messages of both categories 1) and 2) can be re-distributed on the national level to those operators and handling companies which have not identified themselves to NMOC.

To make an agreement contact:

Post:

Air Navigation Services of the Czech Republic
Planning and development division
Navigační 787
252 61 Jeneč

Telephone:  +420 727 373 262

Telefax:  +420 727 372 011

1.9.2.4.2 The ETFMS addresses:

AFS:  EUCHZMTA

SITA:  BRUE7X

1.9.2.4.3 Whenever a flight is delayed or suspended by ETFMS the flight plan in question remains valid whatever the delay is.
1.9.2.5  Time slot allocation by means of SAM - Slot Allocation Message
1.9.2.5.1  Format

typ zprávy Slot Allocation Message

 TITLE SAM

the message type Slot Allocation Message

identifikace letu

 ARCID AMC101

the flight identification

identifikace FPL v databázi IFPS

 IFPLID AA12345678

 

letiště odletu

 ADEP EGLL

departure aerodrome

letiště určení

 ADES LMML

aerodrome of destination

předpokládané datum zahájení pojíždění

 EOBD 160224

estimated Off-Block Date

předpokládaný čas zahájení pojíždění

 EOBT 0950

estimated Off-Block Time

vypočítaný čas vzletu - časový údaj, ve kterém musí být vzlet proveden. Musí být dodržen v toleranci CTOT -5/+10 minut

 CTOT 1030

Calculated Take Off Time, the time value to depart. It shall be complied within tolerance CTOT -5/+10 minutes

identifikace opatření pro řízení toku, kvůli němuž je zpráva zasílána

 REGUL RMZ24M

the identification of flow measure applied

cílový čas přeletu bodu regulace

 TTO - PTID VEULE - TO 1050 - FL F300

Target Time-Over

předpokládaný čas potřebný pro pojíždění

 TAXITIME 0020

estimated taxi time

identifikace nejvíce penalizujícího omezení

 REGCAUSE CE 81

identification of the most penalizing measure

1.9.2.5.1.1  The SAM message can comprise the COMMENT field as follows:

Pole podává doplňující informaci o uzavření letiště určení, prostoru nebo bodu

 COMMENT AERODROME OR AIRSPACE OR POINT NOT AVILABLE

The information about the aerodrome of destination, airspace or point closure is provided

Pole podává informaci, že důvodem přidělení CTOT je RVR nižší než minima posádky uvedená v letovém plánu

 COMMENT RVR CRITERIA NOT MET

The information about RVR at destination lower than crew’s minima adduced in FPL is provided

1.9.2.5.2  Meaning

The message announces the compulsory time to depart. The time shall be complied in tolerance -5/+10 minutes.

1.9.2.5.3  Distribution

  1. The aircraft operator provided that he has identified himself to NMOC.

  2. The airport of departure ARO for those aircraft operators, who have not identified themselves to NMOC.

  3. The flight plan originator for those operators who have not identified themselves and ARO at the departure airport does not exist.

  4. The airport of departure TWR.

1.9.2.5.3.1  Distribution on the national level

  1. The message will be distributed to those aircraft operators who have not identified themselves to NMOC in accordance with ENR 1.9 para 2.5.3 provided that the agreement has been drawn in accordance with ENR 1.9 para 2.4.1

  2. In all other cases the message is available at the Central ATS Reporting Office Praha at the time EOBT-2 hours notwithstanding the airport of departure.

1.9.2.5.4  Operator’s further action

The operator must comply with CTOT. If it is impossible, the operator will respond with one of the messages:

  1. SMM - Slot Missed Message in compliance with ENR 1.9 para 2.8.1

  2.  

1.9.2.6  Modification of allocated Time Slot by means of Slot Revision Message - SRM.
1.9.2.6.1  Format

typ zprávy Slot Revision Message

 TITLE SRM

the message type Slot Revision Message

identifikace letu

 ARCID AMC101

the flight identification

identifikace FPL v databázi IFPS

 IFPLID AA12345678

 

letiště odletu

 ADEP EGLL

departure aerodrome

letiště určení

 ADES LMML

aerodrome of destination

předpokládané datum zahájení pojíždění

 EOBD 160224

Estimated Off-Block Date

předpokládaný čas zahájení pojíždění

 EOBT 0950

Estimated Off-Block Time

aktualizovaný vypočítaný čas vzletu - časový údaj, ve kterém musí být vzlet proveden. Musí být dodržen s tolerancí NEWCTOT -5/+10 minut

 NEWCTOT 1005

New Calculated Take Off Time, the time value to depart. It shall be complied within tolerance NEWCTOT -5/+10 minutes

identifikace opatření pro řízení toku, kvůli němuž je zpráva zasílána

 REGUL RMZ24M

the identification of flow measure applied

cílový čas přeletu bodu regulace

 TTO - PTID VEULE - TO 1025 - FL F300

Target Time-Over

předpokládaný čas potřebný pro pojíždění

 TAXITIME 0020

estimated taxi time

identifikace nejvíce penalizujícího omezení

 REGCAUSE CE 81

identification of the most penalizing measure

1.9.2.6.1.1  The SRM message can comprise the COMMENT field as follows:

Pole podává doplňující informaci o uzavření letiště určení, prostoru nebo bodu

 COMMENT AERODROME OR AIRSPACE OR POINT NOT AVILABLE

The information about the aerodrome of destination, airspace or point closure is provided

Pole podává informaci, že důvodem přidělení CTOT je RVR nižší než minima posádky uvedená v letovém plánu

 COMMENT RVR CRITERIA NOT MET

The information about RVR at destination lower than crew’s minima adduced in FPL is provided

1.9.2.6.2  Meaning

The already allocated CTOT has been changed. The new value is adduced in the NEWCTOT field.

1.9.2.6.3 Distribution in accordance with ENR 1.9 para 2.5.3
1.9.2.6.3.1 Distribution on the national level in accordance with ENR 1.9 para 2.5.3.1 1. and ENR 1.9 para 2.5.3.1 2. with the exception of time parameters of EOBT - 2 hours.
1.9.2.6.4 The operator’s further action in accordance with ENR 1.9 para 2.5.4
1.9.2.6.5  Message sequence

The SRM could be received in the following sequence:

  1. SAM-SRM - if the modification of CTOT is initiated by NMOC.

  2. SAM-DLA-SRM - if a delay is announced by the aircraft operator by means of message

1.9.2.7  Cancellation of already allocated Time Slot

If the ATFM measure because of which the Time Slot has been issued is cancelled, the Slot Requirement Cancellation Message - SLC is sent.

1.9.2.7.1  Format
  TITLE SLC  
  ARCID AMC101 
  IFPLID AA12345678 
  ADEP EGLL 
  ADES LMML 
  EOBD 040901 
  EOBT 0945 

důvod zrušení slotu (let již není předmětem řízení toku)

 REASON OUTREG

reason for a slot cancellation (flight is no longer subject to an ATFCM restriction)

  TAXITIME 0020 
1.9.2.7.2  Meaning

The flight is no longer the subject of any ATFM measure.

1.9.2.7.3  Distribution

In accordance with ENR 1.9 para 2.5.3

1.9.2.8  If the already allocated Time Slot can not be complied with and it is impossible to define a new EOBT, the Slot Missed Message - SMM is sent.
1.9.2.8.1  Format
  TITLE SMM  
  ARCID AMC101 
  ADEP EGLL 
  ADES LMML 
  EOBD 040901 
  EOBT 0945 

časový údaj čerpaný z předchozí zprávy SAM nebo SRM

 CTOT 1020

the time value from the previous SAM or SRM message

1.9.2.8.2  Distribution

The message is sent to ETFMS by the operator or the distribution is mediated by the Central ATS Reporting Office Praha.

1.9.2.8.3  Message sequence

The ETFMS will respond to SMM with FLS - Flight Suspension Message as described in ENR 1.9 para 2.13.2.1 1). The ETFMS expects to receive new EOBT (when known) via a Change (CHG), Delay (DLA) or CNL and refile into IFPS.

  1. ETFMS to Aircraft operator - SAM

  2. Aircraft operator to ETFMS - SMM

  3. ETFMS to Aircraft operator - FLS

  4. Aircraft operator to ETFMS - CHG, DLA, (CNL and refile)

1.9.2.9  Slot improvement offer by means of Slot Improvement Proposal Message - SIP.
1.9.2.9.1  Format
  TITLE SIP  
  ARCID AMC101 
  IFPLID AA12345678 
  ADEP EGLL 
  ADES LMML 
  EOBD 040901 
  EOBT 0945 

časový údaj čerpaný z předchozí zprávy SAM nebo SRM

 CTOT 1030

 

nové nabízené CTOT

 NEWCTOT 1010

new CTOT offered

  REGUL UZZU11 

odpovězte do 0930, v opačném případě bude nabídka anulována.

 RESPBY 0930

respond by 0930 at the latest otherwise the offer will be cancelled.

  TAXITIME 0020 
1.9.2.9.2  Distribution

The message will be sent by ETFMS to the operator in question provided that the operator has identified himself to NMOC. If not, the message will be sent to the ARO of the airport of departure.

1.9.2.9.2.1 The distribution on the national level will be based on the eventually drawn agreement.
1.9.2.10  Acceptance of the offered slot improvement by means of Slot Improvement Proposal Acceptance Message - SPA.
1.9.2.10.1  Format
  TITLE SPA  
  ARCID CSA001 
  ADEP LKPR  
  EOBT 0925 

čas čerpaný ze zprávy SIP

 NEWCTOT 1000

the time adduced in - NEWCTOT field of previous SIP message

  ADES LZIB 
1.9.2.10.2  Distribution

The message is sent by the operator to ETFMS direct. If an operator does not communicate direct, the message will be distributed by means of the Central ATS Reporting Office Praha.

1.9.2.11  Rejection of offered slot improvement by means of Slot Improvement Proposal Rejection Message - SRJ.
1.9.2.11.1  Format
  TITLE SRJ  
  ARCID CSA001 
  ADEP LKPR  
  EOBT 0925 
  REJCTOT 1000 
  ADES LZIB 
1.9.2.11.2  Distribution

In accordance with ENR 1.9 para 2.10.2

1.9.2.12  Indication of a corrupted message reception by means of ERROR Message - ERR.
1.9.2.12.1  Format
  TITLE ERR  
  ARCID AMC101 

čas podání chybné zprávy

 FILTIM 0915

filing time of the corrupted message

identifikace typu chybné zprávy (dle pole TITLE)

 ORGMSG SMM

the title of the corrupted message

důvod chyby, je-li systémem identifikovatelný

 REASON SYNTAX ERROR

the reason for the mistake if identifiable

1.9.2.12.2  Distribution

To the corrupted message originator.

1.9.2.12.3  Rules for the use

The message is sent by ETFMS if irremovable mistakes indicated or if formally correct message is received but it is impossible to associate it with a flight plan or the message is not relevant (e.g. an EOBT earlier than the previous one).

1.9.2.13  Flight Suspension Message - FLS
1.9.2.13.1  Scope

  1. To confirm the flight plan validity suspension after reception of Slot Missed Message - SMM from the operator (see ENR 1.9 para 2.8).

  2. In case of the flights not having adduced RVR minima of the crew in the flight plan to suspend the flight plan validity by ETFMS for undefined time period if low visibility procedures are under way at the aerodrome of destination or, in case of undefined aerodrome closure.

  3. To suspend the flight plan validity if the flight did not depart within 15 minutes from ETOT or CTOT and the appropriate DLA message was not sent.

  4. To suspend the flight plan validity in case of invalid flight plan route based on DMEAN (Dynamic Management of European ATC Network).

Note: the ATC clearance to start up and depart will not be issued in this case in the same way as in case of non-compliance with the allocated CTOT.

Message cancels already allocated Time Slot and suspends validity of the flight plan.

1.9.2.13.2  Format

The FLS message can be distributed in 4 different formats.

1.9.2.13.2.1  The FLS message as a reaction on SMM received.
TITLE FLS
ARCID AMC101
IFPLID AA12345678
ADEP EGLL
ADES LMML
EOBD 040901
EOBT 0945
COMMENT SMM RECEIVED
TAXITIME 0020

FLS message in this format is sent to confirm SMM received (see ENR 1.9 para 2.8). Already allocated CTOT is cancelled and ETFMS is awaiting further information from the aircraft operator. Subsequently the operator sends , CHG or CNL message.

1.9.2.13.2.2  FLS message as reaction to aerodrome or airspace or point not available.
TITLE FLS
ARCID AMC101
IFPLID AA12345678
ADEP EGLL
ADES LMML
EOBD 040901
EOBT 0945
REGUL LMMLA01
COMMENT AERODROME OR AIRSPACE OR POINT NOT AVAILABLE
TAXITIME 0020
REGCAUSE AA 83

The message is sent in case of long term aerodrome of destination or airspace closure (cca 3 hours or longer). If the flight is going to be carried out, FCM is sent (see ENR 1.9 para 2.15.2.2). If not a CNL message is sent in response.

1.9.2.13.2.3  FLS message with RVR field adduced
TITLE FLS
ARCID AMC101
IFPLID AA12345678
ADEP EGLL
ADES LMML
EOBD 040901
EOBT 0945
RVR 350
RESPBY 0855
REGUL UZZU11
COMMENT RVR UNKNOWN
TAXITIME 0020
REGCAUSE WA 84

  1. Meaning:

    The message is sent under the low visibility procedures applied to the flights with no RVR minima adduced in FPL. CTOT is cancelled and FPL suspended.

  2. Further aircraft operator action

    The operator in question sends a FCM message adducing RVR minima (see ENR 1.9 para 2.15.2.1) or a CHG message. A suspended flight with an EOBT in the past or an obsolete EOBT must first be amended by a DLA and then confirmed by a FCM.

  3. End of Low Visibility Condition

    All suspended flights are de-suspended:

    1. if they become non-regulated then non-exempted flights will receive a DES

    2. if they remain regulated, non-exempted flights will receive a SAM

    3. exempted flights will receive a DES

1.9.2.13.2.4  FLS message based on FAM (Flight Activation Monitoring)
TITLE FLS
ARCID AMC101
IFPLID AA12345678
ADEP EGLL
ADES LMML
EOBD 040901
EOBT 0945
COMMENT NOT REPORTED AS AIRBORNE
TAXITIME 0020

  1. Meaning

    The message suspends the flight plans not activated after 15 minutes from ETOT or CTOT.

  2. Further aircraft operator action

    The operator in question sends message if the flight is going to be carried out. Otherwise a CNL is sent.

1.9.2.13.2.5  FLS message based on DMEAN
TITLE FLS
ARCID ABC101
IFPLID AA12345678
ADEP EGLL
ADES LIRF
EOBD 020423
EOBT 0945
COMMENT INVALID ROUTE BY REVALIDATION
ERROR PROF: RS: TRAFFIC VIA MILPA UM135 GVA IS ON FORBIDDEN ROUTE [LS2026A] (EGLL LIRF)
ERROR PROF: RS: TRAFFIC VIA VEROB UM135 TOP IS ON FORBIDDEN ROUTE [LILS1004A] (EGLL LIRF)
ERROR PROF: RS: TRAFFIC VIA UNITA UL50 ELB IS ON FORBIDDEN ROUTE [LI2019A] (EGLL LIRF)
NEWRTE N0447F390 MID UN615 XAMAB UL612 MILPA UM730 BEROK UL153 XIBIL
TAXITIME 0020

  1. Meaning

    The message suspends the flight plans with not available flight plan route. Not available route segments are adduced in the ERROR field. Simultaneously the message comprises the recommended available route (the field NEWRTE).

  2. Further aircraft operator action

    The operator in question files a CHG message with the recommended or other available route.

1.9.2.13.2.6  FLS message with multiple reason for suspension of flight plan.

The FLS message received can contain more than one reason for suspension. The field REGUL is repeated in this case.

TITLE FLS
ARCID ABC101
IFPLID AA36655760
ADEP EGLL
ADES LMML
EOBD 060310
EOBT 0845
REGUL EGLLD11
REGUL UZZU11
COMMENT AERODROME OR AIRSPACE OR POINT NOT AVAILABLE
TAXITIME 0020
REGCAUSE ID83

The subsequent FCM message shall be sent individually for each of the reasons for FPL suspension. If only one FCM message is sent, containing the only reason for the FPL suspension, FPL suspension, FLS message is received repeatedly with the other reason for suspension.

1.9.2.13.2.7  Message based on Cancel DPI (C-DPI/Cancel Departure Planning Information Message).
TITLE FLS (5)
ARCID BEL2CC
IFPLID AA00126947
ADEP EBBR
ADES LIPZ
EOBD 120119
EOBT 0543
COMMENT SUSPENDED BY DEPARTURE AIRPORT
TAXITIME 0016

Meaning: The message suspends the flight plan in case of a C-DPI has been sent by the departure airport.

1.9.2.14  The DES message

The de-suspension of the flight plan which has been suspended by means of FLS is executed by means of a DES-De-Suspension Message.

Meaning: The flight plan has been de-suspended and the flight is not concerned with any regulation.

The message is used in the following situations:

  1. after the reception of a FCM indicating the ability of the operator to execute the flight under given visibility condition and the flight is unconcerned with a regulation,

  2. after the reception of a CHG, DLA, FPL (CNL and refile) subsequently after a SMM, indicating the operator’s new EOBT and the flight is unconcerned with a regulation,

  3. if the situation of reduced visibility is over and the flights is unconcerned with a regulation.

Format:

TITLE DES
ARCID AMC101
IFPLID AA12345678
ADEP EGLL
ADES LMML
EOBD 040901
EOBT 0945
TAXITIME 0020

Note: After the FLS message and possible subsequent chain of messages shall either a DES or SAM be received. The latter if the flight is concerned with a regulation. Until the reception of either of the messages, the flight concerned will not be cleared to depart.

1.9.2.15  The meaning and use of Flight Confirmation Message - FCM
1.9.2.15.1 The purpose of the FCM message is flight plan validity recovery after:

  1. the AIM reception indicating an aerodrome of destination or airspace closure, or announcement of low visibility procedures.

  2. the validity suspension based on FLS message reception.

1.9.2.15.2  Format
1.9.2.15.2.1  The FCM message as a response to AIM or FLS indicating the low visibility procedures
  TITLE FCM  
  ARCID AMC101 
  ADEP EGLL 
  ADES LMML 
  EOBT 0945 

RVR minima posádky

 RVR 200

the crew’s RVR minima

Meaning and operator’s further actions:

The message is sent by the operator in response to the FLS message (see ENR 1.9 para 2.13.2.3) and crew’s RVR minima were not adduced in the flight plan. The minima shall be adduced in the RVR field of the FCM message. A suspended flight with an EOBT in the past or an obsolete EOBT must first be emended by a DLA and then confirmed by a FCM. Subsequently the operator may receive either a SAM if the flight in question remains the subject of ATFCM measures or a DES.

1.9.2.15.2.2  The message as a response to AIM or indicating an aerodrome of destination or airspace closure.
  TITLE FCM  
  ARCID AMC101 
  ADEP EGLL 
  ADES LMML 
  EOBT 0945 

identifikace ATFCM opatření uzavírajícího letiště určení

 REGUL LMMLA01

identification of ATFCM measure closing the aerodrome of arrival

Meaning and operator´s further actions:

The message si sent by the operator in response to message (see ENR 1.9 para 2.13.2.2). A suspended flight with an EOBT in the past or an obsolete EOBT must first be amended by a DLA and then confirmed by an .

1.9.2.15.2.3  Combined FCM message.
  TITLE FCM  
  ARCID AMC101 
  ADEP EGLL 
  ADES LMML 
  EOBT 0945 

RVR minima posádky

 RVR 200

the crew’s RVR minima

identifikace ATFCM opatření uzavírajícího letiště určení

 REGUL LMMLA01

identification of ATFCM measure closing the aerodrome of arrival

Meaning and operator´s further actions:

Combined message shall be sent if so required by appropriate AIM or message in case of low visibility and simultaneous closure of the aerodrome of arrival and when it is the operator´s intention to execute the flight anyway. If the EOBT of the flight in question is in the past, it is necessary to send DLA message first, next.

1.9.2.16  Rerouting Proposal - RRP
1.9.2.16.1 Scope: the objectives of a RRP is the offer of the routing that would enable the improvement or cancellation of Calculated Take Off Time (CTOT) or Provisional Take Off Time (PTOT).

Note: Provisional Take Off Time is the time existing inside CASA before its sending to the operator.

1.9.2.16.2  Operator’s further action: If the offered route is acceptable the operator will file either the CHG message adducing the new route, or file a new flight plan, or file a RFP - Replacement flight plan. The procedures must be executed until the time adduced in the RESPBY field at the latest.
1.9.2.16.3  Format
1.9.2.16.3.1 

druh zprávy Rerouting Proposal

 TITLE RRP

type of message Rerouting Proposal

identifikace letu

 ARCID CSA123

aircraft Identification

identifikace FPL v databázi IFPS

 IFPLID AA12345678

 

letiště odletu

 ADEP LKPR

airport of departure

letiště určení

 ADES EGLL

airport of destination

předpokládané datum zahájení pojíždění

 EOBD 961204

Estimated Off-Block Date

plánovaný Off Block Time

 EOBT 1715

Estimated Off-Block Time

trať uvedená v letovém plánu

 ORGRTE ABB UA20 CLIFF

the route adduced in the flight plan

přidělený vypočítaný čas vzletu

CTOT 1810

allocated Calculated Take Off Time

nabídka číslo 1

 RRTEREF LKPREGLL1

rerouting offer No 1

nabízená trať

 NEWRTE EVX UR116 CAN UR24 BARLU

the new routing offered

revidovaný čas vzletu v případě akceptace nabídky

 NEWCTOT 1740

the recalculated take off time if the offer is accepted

odpovězte do času 1540

 RESPBY 1540

respond until 1540 at the latest

Meaning: If the offer is accepted the value adduced in the CTOT field will be changed to the value adduced in the NEWCTOT field.

1.9.2.16.3.2 
  TITLE RRP  
  ARCID CSA123 

identifikace FPL v databázi IFPS

 IFPLID AA12345678

identification in IFPS database

  ADEP LKPR  
  ADES EGLL 
  EOBD 961204 
  EOBT 1715 
  ORGRTE ABB UA20 CLIFF 
  CTOT 1810 
  RRTEREF LKPREGLL1 
  NEWRTE EVX UR116 CAN UR24 BARLU 
  RESPBY 1540 
  REASON OUTREG 

Meaning: If the offered route is accepted, the flight is no longer the subject to flow control.

1.9.2.16.3.3 
  TITLE RRP  
  ARCID CSA123 

identifikace FPL v databázi IFPS

 IFPLID AA12345678

identification in IFPS database

  ADEP LKPR  
  ADES EGLL 
  EOBD 961204 
  EOBT 1715 
  ORGRTE ABB UA20 CLIFF 

prozatímní čas vzletu uvnitř systému CASA

 PTOT 1810

provisional take off time inside CASA

  RRTEREF LKPREGLL1 
  NEWRTE EVX UR116 CAN UR24 BARLU 

revidovaný prozatímní čas vzletu

 NEWPTOT 1740

revised provisional take off time

  RESPBY 1540 

Meaning: If the offered route is accepted, the Provisional Take Off Time will be improved as adduced in the NEWPTOT field.

1.9.2.16.3.4 
  TITLE RRP  
  ARCID CSA123 

identifikace FPL v databázi IFPS

 IFPLID AA12345678

identification in IFPS database

  ADEP LKPR  
  ADES EGLL 
  EOBD 961204 
  EOBT 1715 
  ORGRTE ABB UA20 CLIFF 
  PTOT 1810 
  RRTEREF LKPREGLL1 
  NEWRTE EVX UR116 CAN UR24 BARLU 
  RESPBY 1540 
  REASON OUTREG 

Meaning: If the offered route is accepted, the flight is no longer the subject of any flow control.

1.9.2.17  Rerouting notification message - RRN
TITLE RRN
ARCID AMC101
IFPLID AA12345678
ADEP EGLL
ADES LMML
EOBD 080901
EOBT 1030
ORGRTE MID UA1 RBT UG32 TOP UA1 ELB UA12 PAL UA18 EKOLA A18 MLQ
CTOT 1230
RRTEREF EGLLLMML1
NEWRTE MID UA1 RBT UG32 BAJKO UA21 NIZ UA2 AJO UA9 CAR UB21 PANTA B21 MLQ
NEWCTOT 1105
RESPBY 0900
TAXITIME 0020
TOT LIMIT - VALPERIOD

Meaning: The message is sent to the operator in case of cancellation. The system expects sending of new FPL with the suggested route in reserved time mentioned in a RRN message.

1.9.2.18  The RJT message

If the rerouting proposal made by means of a RRP message is not acceptable, the operator shall send the RJT - Rerouting Proposal Rejection Message. The message may be sent either directly or by means of an ARO.

Format:

  TITLE RJT  
  ARCID CSA001 

identifikace FPL v databázi IFPS

 IFPLID AA12345678

identification in IFPS database

  ADEP LKPR  
  ADES EEDF 
  EOBD 970201 
  EOBT 0030 

identifikace odmítané nabídky

 RRTEREF LKPREDDF 1

the offer identification

Objective: Timely dispatch of the RJT enables CASA the routing and the time to be allocated to another flight.

1.9.2.19  Ready For Improvement Message - RFI

Meaning: particular flight of the operator whose flights are generally in a NRFI (Not Ready For Improvement) status, can be shifted into a RFI status by means of the RFI message.

Format:

  TITLE RFI  
  ARCID CSA001 

identifikace FPL v databázi IFPS

 IFPLID AA12345678

identification in IFPS database

  ADEP LKPR  
  ADES EDDF 
  EOBD 000225 
  EOBT 1210 

Further actions: after the RFI message has been sent, an already allocated slot can be improved by means of a SRM, without the intermediate SIP message.

1.9.2.20  SIP Wanted Message - SWM

Meaning: particular flight of the operator whose flights are generally in a RFI (Ready For Improvement) status, can be shifted into a NRFI status by means of the SWM message.

Format:

  TITLE SWM  
  ARCID CSA001 

identifikace FPL v databázi IFPS

 IFPLID AA12345678

identification in IFPS database

  ADEP LKPR  
  ADES EDDF 
  EOBD 000225 
  EOBT 1210 

Further actions: after the SWM message has been sent, an already allocated slot can be improved by means of a SRM, after the intermediate SIP - SPA message.

1.9.2.21  REA - Ready Message

Procedure: the message can be sent on the operator’s request having received a SAM (Slot Allocation Message) and being ready to accept whatever CTOT improvement. The message can be mediated by the TWR of the departure airport or the Central ATS Reporting Office Praha () or .

1.9.3  ETFMS SYSTEM - CONTINGENCY PROCEDURES

1.9.3.1 The procedures adduced further are mandatory for PRAHA/Ruzyně airport exclusively. The activities of all the other airports in the Czech Republic are not limited in any way during the ETFMS system failure.
1.9.3.2 Contingency Procedures are based on Minimum Departure Interval (MDI) application.
1.9.3.3  Alert Phase

The phase is announced by means of Alert Flash Message. The message provides the information about the possibility of contingency procedures application. The message is addressed to ATS and aircraft operators involved. The message contains the Provisional Contingency Start Time (PCST). No immediate action is required from aircraft operators in regard to ATS.

1.9.3.4  Activation Phase

The phase is started by sending Activation Flash Message. The message is sent to the nominated TWRs, Flow Management Positions and Aircraft Operators. The message includes the time value CST (Contingency Start Time) from which the slot time allocation will be based on MDI

1.9.3.5 During the ALERT and ACTIVATION phases the already allocated time SLOTs are enlarged to CTOT -5/+20 minutes. The departures which cannot be executed inside this enlarged SLOT time will be shifted to the Operational Contingency Phase (see ENR 1.9 para 3.7). The flights which have already received the SLOT Allocation Message from ETFMS, as well as the other flights which are not the subject to any flow control according to the published ANM will be provided with the departure time SLOT by FMP Praha

Telephone:  +420 220 374 394

Telephone:  +420 220 374 386

1.9.3.6  The MDI for PRAHA/Ruzyně are defined by NMOC Brussels.

The exception from the general rule is created for the flights with the destination inside FIRs defined by NMOC. The departure SLOTs for this kind of flights depend on the individual agreement between the FMP Praha and the FMP in question. This kind of flights will be cleared to depart in addition to those flights cleared in accordance with the basic rules.

1.9.3.7  Operational Contingency Phase

The duration of the Operational Contingency Phase starts from the time CST adduced in Activation Flash Message till the time TRT (Tact Recovery Time) adduced in Recovery Flash Message (see ENR 1.9 para 3.8).

The departure time slots are available at the FMP Praha. The departure slots acquired for the time period current time plus 60 minutes are definite and mandatory. The departure slots acquired for the time period current time plus 61 minutes or more are of information nature and can be changed in both directions of the time axis.

1.9.3.8  ETFMS Recovery Phase

The phase is announced by means of the Recovery Flash Message. The message is addressed to the nominated , Flow Management Positions and Aircraft Operators. The message includes the time value TRT (Tact recovery Time) from which the ETFMS system will recover.

The Aircraft Operators who have already received the departure SLOT based on MDI and his/her SLOT even partially overlaps the time period TRT + 60 minutes, will comply with this SLOT time without any respect to a SLOT Allocation Message eventually received from ETFMS.

The Aircraft Operators which have already received the departure time SLOT based on MDI and this SLOT duration lies fully outside the period TRT + 60 minutes will comply with the SLOT Allocation message received from ETFMS.

1.9.4   IFPS - CONTINGENCY PROCEDURES

1.9.4.1 The adduced procedures are defined on the national level only. Total collapse of IFPS is not taken into account by NMOC rules.
1.9.4.2 The total collapse of IFPS will be announced by means of .
1.9.4.3 The following paragraphs have to be complied with by IFR flight plans submitters and combined IFR/VFR flight plans submitters for the flights departing from airports in the Czech Republic.
1.9.4.3.1 The operators who have submitted their flight plans before the IFPS broke down and all the RPL submitters, shall check if their flight plans have already been distributed en-route at adequate time before EOBT.
1.9.4.3.2 This information is available at the Central ATS Reporting Office notwithstanding the actual airport of departure.
1.9.4.3.3 A duty of flight plan verification applies to all operators, irrespective of whether of they have received a message ACK.
1.9.4.3.4 If a flight plan has not yet been distributed en-route, the operator shall file a new one.
1.9.4.3.5 The new flight plan must be submitted by means of an ARO and will not be responded by ACK message.
1.9.4.4 Addressing the flight plan the ARO complies with DOC 4444. The addressing is created in the way valid before the IFPS was implemented.
1.9.4.4.1 The addresses adduced in AIP Czech Republic part ENR 1.11-1 till ENR 1.11-3 shall be used for ATS centres in the Czech Republic.
1.9.4.5 The IFPS Recovery Time will be announced by means of a NOTAM.
1.9.4.6 The operators who have already submitted their substitute flight plans by means of AROs before the IFPS recovery time, will comply with these substitute FPLs.
1.9.4.6.1 The rule stated in ENR 1.9 para 4.6 is valid even for the RPLs submitters who could subsequently receive the RPL based FPL. If the substitute flight plan has been submitted the operator shall comply with it despite the FPL received after the IFPS recovery.
1.9.4.6.2 Since the IFPS recovery time both the AROs and the Operators shall file all the subsequent flight plans in accordance with the IFPS rules.

1.9.5  PROCEDURES APPLICABLE FOR DEPARTING FLIGHTS

1.9.5.1 Whenever practicable and always when the ANM (ATFM Notification Message) indicates that the flight is subject of a flow control measure, the flight plan shall be filed at the time EOBT- 3 hours at the latest.
1.9.5.2 Flight plans for domestic flights can be filed at the time EOBT  -1 hour provided that flow control is not executed in the airspace of the Czech Republic.
1.9.5.3 Filing the flight plan later than at EOBT - 3 hours the operator is taking the risk of being more penalised than the flights with flight plans filed in time, if flow control measure is in force on a route.
1.9.5.4 Procedures for Departure - DEP, Arrival - ARR, Cancel - CNL messages submission. With the exception of addressing the procedures for submission remain unchanged.
1.9.5.5  Procedures for Change - CHG message submission
1.9.5.5.1 The following fields cannot be changed by means of CHG:

  1. Flight identification - ARCID

  2. Airport of departure - ADEP

  3. Airport of destination - ADES

  4.  

  5. EOBD - Estimated Off Block Date

If any of above fields values has changed, it would be necessary to cancel the fight plan and submit a new one.

1.9.5.5.2 Any possible changes to the field 19 data shall be announced to the ATS Reporting Office of the flight plan submission or to IFPS direct by means of CHG message. In exceptional cases the changes to the field 19 comparing to the original flight plan may be reported on the first contact with the air traffic control centres or FIC.
1.9.5.6  Procedures for Delay - DLA message submission
1.9.5.6.1 It is not possible to change adduced in the flight plan forward by means of message.

Note: As it is impossible to do so by means of a CHG message either, the only way to shift the EOBT to the earlier time is to cancel the flight plan and to file a new one.

1.9.5.6.2  message must not be sent to IFPS in response to the Time Slot allocation. If Units outside the IFPS Zone, airports of destinations or other authorities request the message, must be addressed individually to them and IFPS addresses must be omitted.
1.9.5.6.3 Any expected delay of 15 minutes or more in regard EOBT adduced in FPL or most recently updated shall be announced by means of DLA message.
1.9.5.6.4 A DLA message shall be sent with no respect to the eventually allocated slot.

Example: EOBT based on FPL- 1000, CTOT based on SAM received - 1030. For the reason different from the allocated CTOT, the flight in question is able to commence taxiing not sooner than 1015. Even in such a case a DLA message shall be sent.

1.9.6  A-CDM procedures - coordination with NM

1.9.6.1 A permanent and fully automatic data exchange with the NMOC is established. This data transfer enables highly accurate early predictions of landing and departures times. Furthermore, this allows for more accurate and efficient calculation of the CTOT due to the use of local TTOT based on TOBT and variable taxi times.
1.9.6.2 The following messages are used for data exchange:

  1. ETFMS Flight Data Message (EFD)

  2. Early Departure Planning Information Message (E-DPI)

  3. Target Departure Planning Information Message (T-DPI)

  4.  

  5. Cancel Departure Planning Information Message (C-DPI)