Air Traffic Services

Question 1

Objectives of air traffic services

Answer 1

Prevent collisions between a/c and around the a manoeuvring area
Expedite and maintain an orderly flow of air traffic
Provide advice and information
Notify the need for search and rescue - alerting service

Question 2

3 divisions of ATS

Answer 2

ATC service

FIS

Alerting service

Question 3

Area control

Answer 3

Provision of ATC for controlled flights within CTAs and enroute in FIR and UIR

Question 4

ATSU clocks must accurate within

Answer 4

30secs

Question 5

Purpose of a clearance

Answer 5

Expediting and separating air traffic

Question 6

Airmet

Answer 6

Information concerning the expected or currently occurring wx phenomenon which may effect low level flights - that was not already inc the forecasted wx

Question 7

ATIS broadcasts should last no longer than

Answer 7

30secs

Updated immediately after any sig change in wx

If an a/c indicates it is out of date - current atis can be transmitted by ATC

Question 8

When is cloud info given on the atis

Answer 8

Cloud base is below highest MSA or 5,000ft or when CB is present

Question 9

Alerting service is provided to

Answer 9

All a/c provided with ATC

All a/c filed a flight plan and are known to ATC

Any a/c known or believed to be subject to unlawful interference

Question 10

Responsibilities of the alerting service

Answer 10

FIC and ACC intimate the alert service and move it from phase to phase - also update the RCC as to the situation

Question 11

RCC

Answer 11

Rescue cooperation centre - responsible for SAR

Question 12

INCERFA

Answer 12

Uncertainty phase

No comms from the a/c after 30mins
Or
A/c fails to arrive at dest within 30mins of the ETA

Question 13

ALERFA

Answer 13

Alert phase

Apprehension exists - attempts to make comms have failed
A/c fails to l/d within 5mins of clearance
Know that the a/c has been hijacked

Question 14

DETRESFA

Answer 14

Distress phase

Further attempts to make comms have failed - evidence that the a/c is distressed
Fuel o/b is considered to be exhausted

Question 15

ATC speed control regs

Answer 15

Below 250 - multiples of 10kts

Above - multiples of M.01

Not allowed to issue speed control after passing 4nm

Question 16

2 types of AIREP

Answer 16

Routine

Special

Question 17

Routine AIREPS - 3 sections

Answer 17

1 - posn report - mandatory
2- operational info - when req by the operator
3 - met info - if the a/c has been req to submit routine air reports

Question 18

ATC incident reports - 3 types

Answer 18

A/c proximity report (airprox)
ATC procedure report
ATC equip report

Pilot = airprox (p) 
Controller = airprox (c)

Question 19

Airprox (p) is completed

Answer 19

On the ground

Initial report in the air