TEL Section MATS 2

Question 1

If there is a security breach or incident with any ATE equipment on or off the airfield, what shall you do?

Answer 1

The equipment is treated as unserviceable, until ATE completed a full security and serviceability check.

Question 2

If the ILS GP fails what type of approach can a/c do

Answer 2

Loc only approach. If radar is avbl, range checks should be passed when LOC established & further upon request by the pilot

Visual approach
Visual Man Circling
ILS DME procedural approach

Question 3

If the ILS LOC fails what type of approach can a/c do

Answer 3

Alternative approach using the NDB

Visual approach
NDB
Visual Man Circling

Question 4

If the NDB fails what type of approach can a/c do

Answer 4

Visual approach
ILS
Visual Man Circling

Holding facility & approach aid, so neither will be avbl.

a/c require navigational assistance from Rad.

Procedural approaches not avbl

Question 5

If the DME fails what type of approach can a/c do

Answer 5

Visual approach
ILS (but ATCO gives range checks)
Visual Man Circling
NDB procedural Rwy 23 only

Question 6

If there is an RTF failure, what other equipment can be used

Answer 6

Other position, Rad 2
Standby radios

handheld in VCR, only used to close ATC operations

Question 7

Can TS affect the preformance of all radio’s, navigational and electrical equipment

Answer 7

Yes

Question 8

What are your actions if Radar Jamming is affecting radar performance

Answer 8

There should be a contact number on the information supplied with the exercise to contact

Question 9

What do you do if both recorders have failed ?

Answer 9

1- Inform ATE
2- Make a written record of the summary of communications but when this becomes impossible due to peak times, ATC service may cease or flow control measures may have to be introduced.
3- ATCO i/c to send a NOTAM

Question 10

How long does it take for the generator to power-up when there is a loss of power supply

Answer 10

30 seconds

Question 11

What equipment is lost whilst the standby generator is powering up?

Answer 11

• DF
• NDB Monitor (the NDB will still generate)
• SFC Wind
• Met sensors
• Aerodrome lighting

Question 12

What is the tolerance of the DF

Answer 12

+/- 5 degrees Class B (check new mats 2)

Question 13

ATCOs should not transmit on 121.5 MHz unless when…

Answer 13

1- A pilot in distress calls a specific ATS unit that is local to the pilot concerned

or

2- It is apparent that the D&D cell is not responding to an emergency transmission

Question 14

Does the DME radiate to whatever ILS system is radiating (key) on the panel in the VCR?

Answer 14

Yes, the DME will radiate with the coding appropriate to the runway selection on the panel in the VCR

Question 15

If the LOC fails, can you leave the GP radiating without the LOC?

Answer 15

No, the GP should be turned off straight away

Question 16

If the LOC &/or GP indicates an alarm condition, can the ILS be changed over to the reciprocol one?

Answer 16

No, unless ATEM instructs so

Question 17

If the LOC &/or GP indicates an alarm condition, can the ILS be used?

Answer 17

Only a/c on final will be permitted to complete their approach. The ILS will then be taken out of service and handed to ATE

Question 18

What is the protected range of the LOC

Answer 18

25nm protected horizontal range over a sector of 10 degrees either side of the on-course line

and

17nm protected horizontal range over a sector of 35 degrees either side of the on-course line

Question 19

What is the protected range of the GP

Answer 19

10nm protected horizontal range over a sector of 8 degrees either side of the on-course line