Communications Failure

Question 1

In case of a receiver failure, what actions should you take?

Answer 1

Squawk 7600 and transmit the following:

❅ own callsign

❅ transmitting blind due to receiver failure

❅ intentions

❅ time of next intended transmission

❅ repeat

Question 2

If a radio failure is suspected, what steps should be taken before proceeding with the lost communications procedure?

Answer 2

❅ check volume

❅ check squelch

❅ press the test button

❅ check the correct frequency is input

❅ check if the ground station is (should be) in range

❅ check the headset connections

❅ try to reach another ATSU

❅ try to reach another aircraft

❅ try using another radio unit

Question 3

What operational procedures should be followed if communications were lost in IMC (radar area)?

Answer 3

❅ maintain the last assigned flight parameters for 7 minutes

❅ rejoin the flight plan route to the IAF

❅ hold

❅ start approach at EAT

Question 4

What operational procedures should be followed if communications were lost in IMC (under radar vectors)?

Answer 4

❅ rejoin the flight plan route to the IAF

❅ hold

❅ start approach at EAT

Question 5

With respect to aircraft on the ground, state what do following light signals from aerodrome control mean:

(a) steady green

(b) green flashes

(c) steady red

(d) red flashes

(e) white flashes

Answer 5

(a) cleared for takeoff
(b) cleared to taxi
(c) stop
(d) taxi clear of the landing area
(e) return

Question 6

What operational procedures should be followed if communications were lost in VMC?

Answer 6

❅ stay in VMC

❅ land ASAP

❅ report to the appropriate ATSU

Question 7

What operational procedures should be followed if communications were lost in the aerodrome traffic pattern?

Answer 7

❅ continue to fly the pattern

❅ observe and adhere to the visual signals from the ground

Question 8

What operational procedures should be followed if communications were lost in IMC (non-radar area)?

Answer 8

❅ maintain the last assigned flight parameters for 20 minutes

❅ rejoin the flight plan route to the IAF

❅ hold

❅ start approach at EAT

Question 9

If you suspect of a transmitter failure, what actions should you take?

Answer 9

❅ squawk 7600

❅ maintain a listening watch on 121.5 MHz

Question 10

With respect to aircraft in flight, state what do following light signals from aerodrome control mean:

(a) steady green

(b) green flashes

(c) steady red

(d) red flashes

(e) red pyrotechnic

(f) white flashes

Answer 10

(a) cleared to land
(b) return
(c) give way and continue circling
(d) do not land
(e) do not land
(f) land and proceed to apron

Question 11

In case of radio failure (IFR in IMC), within how long should the aircraft land?

Answer 11

Witin 30 minutes after ETA or the last EAT, whichever is later.