emergency radio prodecures

Question 1

Emergency transponder code and ELT fq

Answer 1

7700
Selected as soon as possible when trouble strikes
Set ELT to 406 MHz

Question 2

ICAO defines distress as

Answer 2

Condition of being threatened by serious and or imminent danger and of requiring immediate assistance.

Question 3

ICAO defines urgency as

Answer 3

Condition concerning the safety of the aircraft, or other vehicle, or of some person on board or within sight, which does not require immediate assistance

Question 4

Outline mayday

Answer 4

Absolute priority over all others. Distress call should force everyone else into instant radio silence.

Question 5

Typical mayday situations

Answer 5

total engine failure.
Fire/smoke in any part of aircraft.
Any structural failure that threatens safety of the flight.
Total pilot incapacitation where caller is not qualified or capable to continue flying safely.
Any other situation when threatened with grave or immediate danger and require immediate assistance.

Question 6

Where to broadcast mayday

Answer 6

Transmit over air-ground fq currently on.
If in MBZ or CFZ, pilots discretion to stay on particular fq or change to ATS fq.
If no response, change another known ATS fq, or 121.5 (international emergency fq), broadcast on fq considered appropriate.
SQK 7700
ELT on

Question 7

Outline Mayday call

Answer 7

Mayday Mayday Mayday.
Name of station addressed.
Aircraft callsign.
Nature of distress condition.
Intentions.
Position altitude and heading.

Question 8

Termination of distress communication and radio silence

Answer 8

When pilot in comment considers emergency is no longer present, message must be transmitted to station controlling distress traffic ending distress. Controlling station will transmit DISTRESS TRAFFIC ENDED

Transponder 770 returned to code advised by ATC.
ELT returned to armed

Question 9

Situations for PAN call

Answer 9

Experiencing navigational difficulties and require assistance.
Aircraft malfunction that does not require immediate assistance eg open door, low oil pressure.
Severe turbulence injuries passengers or crew, assistance required upon landing.
Emergency decent in controlled airspace - traffic bellow may be threatened

Question 10

Where to broadcast pan pan

Answer 10

Transmit over air-ground fq currently on.
If in MBZ or CFZ, pilots discretion to stay on particular fq or change to ATS fq.
If no response, change another known ATS fq, or 121.5 (international emergency fq), broadcast on fq considered appropriate.
SQK 7700 if to upgrade to distress situation, hence ELT on

Question 11

Outline pan pan call

Answer 11

Pan Pan, Pan Pan, Pan Pan
Name of station addressed.
Aircraft callsign.
Nature of distress condition.
Intentions.
Position altitude and heading.

Question 12

ELT AF
ELT S
EPIRB
PL

Answer 12

ELT AF - emergency locator transmitter permanently fitted inside aircraft.
ELT S - Emergency locator beacon survival
EPIRB - Emergency position indicating radio beacon
PLB - Personal locator beacon

Question 13

ELT fq

Answer 13

Upon activation, distinct undulating signal on international distress fq 121.5.
Pulse on 406 MHz every 50 seconds - national rescue coordination centre RCCNZ

Question 14

406 ELT antenna

Answer 14

Connected to approx half metering tip or rod areal. Normally top of fuse near tail

Question 15

ELT self testing

Answer 15

Restricted to first 5 minutes of the hour.
Set to arm. Listen to 121.5
Set ELT on, listen for 3 siren sweeps, return ELT to arm.

Question 16

All aircraft shall carry operable ELT unless

Answer 16

Manned free balloon.
In powered aircraft, or gliders with no more than two seats when remaining within 10nm of departure.
Single seat powered aircraft when pilot has portable ELT.
Glider/microlight if at least one occupant fitted with ELT S or PLB
When Aircraft ferried for ELT installation and no passenger carriage.
Period of 7 days when automatic ELT is inoperative and ELT S is accessible to each POB