AFTN Flashcards

1
Q

What is AFTN?

A

Aeronautical Fixed Telecommunication Network. A worldwide system for the exchange of messages between stations.

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2
Q

Where is the UKs Communications Centre based?

A

Heathrow

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3
Q

What categories of AFTN message are there and what are their indicators?

A
SS - Distress
DD - Urgency
FF - Flight Safety
GG - Meteorology
GG - Flight Regularity
GG - Aeronautical Information
KK - Aeronautical Administration
As Appropriate - Service
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4
Q

Which Flight Safety Messages does ATC routinely become involved with?

A

Emergency Messages
Movement and Control Messages
- Supplementary Messages
- Filed Flight Plan and Associated Update Messages

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5
Q

What are the component parts of an AFTN message?

A
Priority Indicator
Addressee
Date and Time Group
Originator
Text (Up to 1800 characters)
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6
Q

With regards to Departures, how do pilots comply with Rule 20

A

Either book out or file a flight plan

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7
Q

What is the definition of a Flight Plan?

A

Specified information provided to Air Traffic Service Units relative to an intended flight or portion of flight of an aircraft

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8
Q

What are the 3 categories of Flight Plan?

A

Full, Repetitive and Abbreviated

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9
Q

What is an abbreviated flight plan?

A

Limited information required to obtain a clearance for a portion of a flight

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10
Q

When MUST a pilot file a flight plan?

A

i) For all IFR flights in Controlled Airspace
ii) For all VFR flights in Class B-D airspace (note not class E!)
iii) For flights wishing to receive an air traffic advisory service on an advisory route
iv) For all flights crossing a UK/International FIR Boundary
v) For flights where the destination aerodrome is more than 40km away from the departure aerodrome, and the aircraft exceeds 5700kg MTWA

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11
Q

When is a pilot ADVISED to file a flight plan?

A

i) For flights over the sea more than 10nms from the coast of when flying over sparsely populated areas
ii) If the pilot intends to fly into an area in which SAR operations are in progress

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12
Q

What methods are available for submitting a flight plan?

A

Direct Filing
Handing completed CA48 to ATSU
Using Parent units

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13
Q

What are the time limits for filing a flight plan?

A

On the ground - 60 minutes prior to start up / taxi
Airborne - 10 minutes before entering controlled airspace
North Atlantic and Flights subject to ATFM - 3 hours prior to start up / taxi

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14
Q

What is the maximum time in advance of a flight that a flight plan can be filed?

A

144 hours - In accordance with ICAO procedures

120 hours - For flights within the IFPS Zone

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15
Q

Who receives a copy of the Flight Plan?

A

Destination Aerodrome
En-route centres
Route charges
Airline or handling agents

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16
Q

How many IFPUs are there in the IFPS Zone?

A

2

Paris and Brussels

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17
Q

What does IFPS stand for?

A

Integrated Initial Flight Plan Processing System

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18
Q

What is the address to send a flight plan to both IFPUs?

A

EGZYIFPS

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19
Q

What happens to supplementary information?

A

If handling agent closes before the aircraft’s ETA at destination plus 1 hour, then the handling agent will pass details to the ATSU at the departure aerodrome. If there is not ATSU then handling agent will forward contact details of the person who holds the supplementary information to the parent ACC. If the ATSU at the departure aerodrome closes before the aircraft’s ETA at destination plus 1 hour, then the senior controller will forward details to the parent ACC.

20
Q

What is an ORM?

A

Operational Reply Message

21
Q

Which 3 ORMs are used by IFPS?

A

ACK - Acknowledge Message
REJ - Reject Message
MAN - Referred for manual processing

22
Q

What types of ACK message are there?

A

Short ACK - Flight plan processed with no modifications

Long ACK - Flight Plan processed with minor modifications

23
Q

What does a MAN message mean?

A

Errors have been detected and flight plan has been referred for Manual Processing

24
Q

What does a REJ message indicate?

A

Flight plan could not be successfully processed automatically or manually

25
Q

What are an operator’s actions if they receive and REJ message>

A

Amend flight plan accordingly and re-submit ti IFPS

26
Q

When is a DEP message sent?

A

IFR - If CAP550 indicates that it is required

VFR - Sent for all VFR flights

27
Q

When should an ARR message be sent?

A

i) To announce the arrival of a diverted aircraft
ii) To announce the arrival of an aircraft which had suffered a radio communication failure
iii) When it is requested in the flight plan

28
Q

How long after arrival should an ARR message be sent?

A

Within 30 minutes

29
Q

What Special Handling Messages are there?

A

STS/EMER - Emergency
STS/HUM - Humanitarian
STS/HOSP - Hospital Flight
STS/SAR - Search and Rescue Flight
STS/HEAD - Flight carrying head of state
STS/STATE - Flight specifically required for state authorities
STS/PROTECTED - For flights which are security sensitive

30
Q

Where are the previous Special Handling Messages inserted on the flight plan

A

Field 18

31
Q

What modifications require a flight plan to be cancelled?

A

Aircraft Identity
Departure or Destination Aerodrome
Earlier estimated Off-Blocks time
Estimated Off-Blocks Date

32
Q

When is a DLA message transmitted?

A

If a flight is delayed by more than 30 minutes

33
Q

When should a DLA message be sent to IFPS?

A

If there is a change in ROBT of +/- 15 minutes

34
Q

How are EOBTs changed?

A

Cancel and re-file after 5 minutes if bringing EOBT forward.

Delay if moving EOBT backwards

35
Q

What is a repetitive Flight Plan

A

A flight plan related to a series of frequently recurring, regularly operated individual flights with identical basic features

36
Q

Within Europe, which Aviation Organisation has assumed full responsibility for the reception, processing and distribution of repetitive flight plans?

A

Eurocontrol

37
Q

What other condition must exist for repetitive flight plans to be used outside the IFPS zone?

A

All other authorities must have agreed to the use of repetitive flight plans

38
Q

How long before the first flight of a series, must a new list be received by Eurocontrol?

A

A minimum of 14 days before the intended first flight

39
Q

How long before the first of an amended flight, must a revised list be received by Eurocontrol?

A

A minimum of 7 days (including 2 Mondays)

40
Q

What are the Conditions for Acceptance of Repetitive Flight Plans?

A

i) Must have a high degree of stability
ii) Must cover the entire flight
iii) All ATS concerned must agree to the use of RPLs

41
Q

Which Flights in Particular can NATS not accept Repetitive Flight Plans for?

A

Trans-Atlantic Flights

42
Q

How long before the EOBT does the CFMU transfer RPLs to IFPS?

A

20 hours prior to the EOBT

43
Q

How is a change of aircraft type of speed communicated?

A

By sending a CHG message to IFPS

44
Q

How is a change of level requested?

A

By notifying ATC on first contact. The only exception to this is within the London FIR where changes of level are requested on first contact with the London ACC

45
Q

How is a change of aircraft ID, route or destination communicated?

A

By sending a CNL message, followed 5 minutes alter by a new FPL, to IFPS

46
Q

What three categories are NOTAMS issued in?

A

NOTAMN - new information
NOTAMR - replaces a previous
NOTAMC - cancels a previous