Civil Aviation Administration

Statens Luftfartsvæsen

AIS HQ / Luftfartsinformationstjenesten, Ellebjergvej 50, DK-2450 København SV, Danmark

TEL: +45 36 18 60 00, FAX: +45 36 18 60 22, E-mail: ais@slv.dk, Internet: www.slv.dk/publikationer

08 / 03

24 JAN

AIC B-08 / 03. Flight Activation Monitoring

1. Description

1.1

With the development of the ETFMS system, the CFMU

is now receiving updates on flights once they are departed.

These updates are provided by the ATC systems and based on

ATC radar and flight plan updates. The benefit of this information

is a better knowledge of the present traffic situation, but also a

better prognosis of the future.

1.2

Another benefit is that for places where such updates are

received, their absence should mean that a flight is not yet air-

borne at its expected take-off time and therefore that its take-off

time is still in the future.

1.3

To get the best of it and to improve the prognosis of the

traffic pattern, the CFMU has developed and evaluated Flight Ac-

tivation Monitoring (FAM) – a tool which:

•

Monitors flights which should have departed

•

Takes action on these flights through an internal to CFMU up-

date of the Take-off time (internal shift) , as to improve the

forecast.

•

Suspends them, after a time parameter unless a message,

which confirms that the flight is airborne, has been received

in the meantime.

•

Informs the AOs and local ATC of the suspension enabling

them to react.

1.4

The expected results are to provide a better forecast of

the traffic situation, to release the slots unduly occupied by these

flights and to create an incentive for the Aircraft Operators to up-

date their flights in due time.

1.5

Flight Activation Monitoring will improve the traffic load

counts and enable a more efficient use of the available capacity.

2. Details

2.1

Flight Activation Monitoring is applicable on flights, de-

parting from and/or landing

at areas where CPRs (Correlated Po-

sition Reports, i.e.

ATC surveillance derived data) are received

by the CFMU.

2.2

It applies to all flights regulated or non-regulated.

2.3

FAM does not affect flights departing from and landing in

other areas, irrespective if they fly through CPR covered areas

or not.

2.4

Reliable CPR coverage is an essential requisite for FAM

to be applied. ETFMS (TACT) monitors the frequency of recep-

tion of CPRs. If the transmission of CPRs from a source (Entry

Note) is interrupted, the process is stopped and flights are no

longer ‘shifted’ or ‘suspended’ by FAM. When CPR coverage in

this particular area is not at the level considered as ‘safe’, then

FAM is deactivated for this area.

2.5

FAM can be activated/deactivated per Entry Node, which

is one or several per State. This can be done dynamically in ET-

FMS (TACT).

2.6

A flight is considered to be active in ETFMS (TACT) fol-

lowing reception of any of the following messages – DEP, FSA,

CPR, APL, ACH, APR and ARR.

2.7

Flights that are ‘shifted’ due to FAM do not receive a mes-

sage from CFMU to this effect, they are simply ‘moved’ in ETFMS

(TACT). Flights that have been suspended by FAM, will receive

a FLS message with the comment “Not reported as airborne”.

2.8

Example of FLS message sent due to FAM :

•

TITLE

FLS

•

ARCID ABC1234

•

ADEP LPPR

•

ADES LFPG

•

EOBD 020514

•

EOBT 0500

•

COMMENT

NOT REPORTED AS AIRBORNE

•

TAXITIME 0012

2.9

It is important to note that if a regulated flight is ‘shifted’

by FAM, its CTOT remains unchanged.

3. Procedures

3.1

When the Aircraft Operator and the Tower of Departure

receive an FLS due to the above process, the following cases

may occur:

3.1.1 The flight is still effectively on the ground either on stand

or already taxiing:

•

The aircraft operator should ensure that the flight plan is re-

initiated by sending a DLA message with a correct EOBT.

ETFMS (TACT) will then respond with a DES or SRM mes-

sage depending if the flight is non-regulated or regulated re-

spectively.

•

The tower of departure should not let the aircraft start-up/de-

part before such a message (DES or SRM) is received.

Note

: All effort shall be made by the Tower to ensure that all

flights, regulated or not, comply with their CTOT/TOTs, taking in-

to account the respective taxiing/holding/sequencing require-

ments.

3.1.2 The flight is already flying:

•

No action is needed from the Aircraft operator or from the

Tower of departure. The flight will automatically be de-sus-

pended at the reception of one of the above messages (DEP,

CPR, FSA etc).

Note

: The continuous re-occurrence of the above may mean a

lack of proper information sent to CFMU. Possible solution would

be in a DEP message sent by the departure aerodrome.

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AIC B-08 / 03 - Side 2 / 2

24 JAN

4. Area of Application

4.1

All users will be notified by CFMU/FMD by means of AIM

whenever an area will have Flight Activation Monitoring enabled.

At this time two test dates has been decided,

March 26 and April

2 between 0900-1400 UTC

4.2

The effect of these areas being FAM-enabled means that

all flights which are departing from or arriving at these areas will

be affected by Flight Activation Monitoring.

4.3

For flights departing from these areas and going to any

other area, Flight activation monitoring will start at ETOT/CTOT.

4.4

For flights departing from non FAM-enabled and landing

at aerodromes in FAM-enabled areas, the process will rely on the

entry point of the first safely covered CPR -covered area. FLS

may be sent to these flights landing inside, although departing

outside.

5. Questions

5.1

Questions can be forwarded to

NAVIAIR

FMP position

TEL: 32 47 82 09

(LL)

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