Chapter 4 - Collision Aviodance, Emergencies, and SAR

Question 1

What phrase is used by ATC to acknowledge a report that flight crew are responding to a ‘TCAS RA’?

Answer 1

“(callsign) ROGER” (MATS 4.1.1.3).

Question 2

Is it the responsibility of a controller to maintain seperation of an aircraft responding to an RA?

Answer 2

No (MATS 4.1.1.3 Note 1).

Question 3

In the event an RA is in conflict withan ATC instruction which is the authority?

Answer 3

TCAS RA (MATS 4.1.1.3 Note 2).

Question 4

What two criteria must be met before ATC resume responsibility for the separation of an aircraft thta has responded to an RA?

Answer 4

1. Seperation standard is re-established; and
2. The responding aircraft has returned to the parameters of the previously assigned clearance or an alternate (MATS 4.1.1.4).

Question 5

Who is responsible for declaring an emergency phase?

Answer 5

The ATS officer first becoming aware an aircraft is operating in other than normal circumstances that may impact its safety (MATS 4.2.1.2).

Question 6

What are the three phases of emergeny and the respective term that describes the certainty a controller has over an aircrafts safety?

Answer 6

Uncertainty phase (INCERFA) - Doubt
Alert phase (ALERFA) - Aprehension
Distress phase (DETRESFA) - Reasonable certainty (MATS 4.2.2)

Question 7

List 5 situation that may lead to the decleration of an INCERFA.

Answer 7

1. Failure to report at designated points e.g. Departure, Position etc
2. Aircraft is known or believed to be subject to irregular operation e.g. improper track or level, navigational issues etc
3. Landing other than a forced landing in an area considered operational unfit or location is in doubt.
4. An aircraft goes missing that has not lodged a flight notification.
5. ADS-C emergency indication recieve without accompanying voice confirmation. (MATS 4.2.2.1).

Question 8

List 8 situations that may lead to the decleration of an ALERFA.

Answer 8

1. Pilot has recieved instruction from ATC at a control zone and fails to land within 5 inutes of estimated landing time and comms can’t be re-established within this 5 minutes.
2. Subsequent communication checks following a ‘failed to report’ INCERFA, fail to reveal any news.
3. Operating efficiency of an aircraft is impaird to the point that safety may be affected.
4. Flight restircted to VMC flying in IMC.
5. Flight restircted to daylight flying at night.
6. Pending the evaluation of a bomb warning (except when on the ground at an ATC controlled aerodrome).
7. PAN is called
8. Aircraft deviates into Restricted area without clearance. (MATS 4.2.2.2)

Question 9

List 11 situations that may lead to the decleration of an ALERFA.

Answer 9

1. It is known or believed that an aircraft is hijaked
2. Subsequent communication checks following a ‘failed to report’ ALERFA, fail to reveal any news.
3. Fuel on board is considered insufficient to reach safety.
4. Prior to or following a forced landing, crash or ditching.
5. Radio distress beacon activated or other visual distress signals have been observed.
6. Information recieved suggest that an aircrafts operating efficiency is impacted enough that a forced landing is likely.
7. Bomb warning is genuine (except when on the ground at an ATC controlled aerodrome).
8. MAYDAY is called.
9. ADS-C emergency indication is recieved and confirmed by voice.
10. Surveillance emergency indication is recieved.
11. Any indications of fire-in-flight. (MATS 4.2.2.3)

Question 10

After how many minutes would you commence communication checks with an aircraft that has failed to report after a frequency change?

Answer 10

3 minutes (MATS 4.2.3.1).

Question 11

After how many minutes would you commence communication checks with an aircraft that has failed to report arrival at a non-controlled aerdrome?

Answer 11

10 minutes (MATS 4.2.3.1).

Question 12

How many minutes after SARTIME should an INCERFA be declared for an aircraft that fails to report arrival or departure?

Answer 12

15 minutes (MATS 4.2.3.1).