|
| |
The importance of adhering to the correct standard
procedures cannot be overemphasized. Near-collision investigations show that
misunderstandings introduced through incorrect R/T procedures have been the
primary contributing factor.
For use in our WX 400 simulator only
( click here for more information )

RADIO TELEPHONY PROCEDURES
ACKNOWLEDGE AND READ BACK OF MESSAGES
All messages should be acknowledged by the use of the aircraft call sign.
A full read back must be made to messages containing the following:-
a) Level instructions
b) Heading instructions
c) Speed instructions
d) Airways or route clearances
e) Runway-in-use
f) Clearance to enter, land on, take-off on, backtck or cross an active
runway.
g) SSR operating instructions
h) Altimeter settings
i) VDF information
j) Frequency changes
Note: An acknowledgement only should not be accepted when a complete
read-back is required
RTF CALL-SIGNS OF AIR TRAFFIC CONTROL UNITS
| Air Traffic Control Service
|
Suffix |
| Approach Control Radar Arrivals
Approach Control Radar Departures
Precision Approach Radar
Clearance Delivery
Apron Control
Aeronautical Station
Aerodrome Control
Ground Movement Control
Approach control
Radar (general)
Area Control
Flight Information
|
Arrival
Departure
Precision
Delivery
Apron
Radio
Tower
Ground
Approach
Radar
Control
Information |
The RTF call-sign of a ground station is normally the place name of that
station
to which a suffix is added (example "Johannesburg
Ground")
PHRASEOLOGY
|
Description of levels (subsequently referred to as (“level”) |
a)
FLIGHT LEVEL (number); or
b)
(number) FEET |
|
Level changes, reports and rates
…instruction that a climb (or descent) to a level within the vertical
range defined is to commence
…
for SST aircraft only
|
a)
CLIMB or DESCEND
Followed as necessary by:
i)
To (level)
ii)
TO AND MAINTAIN BLOCK (level) TO (level)
iii)
TO REACH (level) AT (or BY) (time of significant point);
iv)
REPORT LEAVING (or REACHING, or PASSING (level);
v)
AT (number) FEET PER MINUTE [OR GREATER (or LESS];
vi)
REPORT STARTING ACCELERATION (of DECELERATION).
b)
MAINTAIN AT LEAST (number) (FEET) ABOVE (or BELOW) (aircraft call
sign)
c)
REQUEST LEVEL (or FLIGHT LEVEL or ALTITUDE) CHANGE FROM (name of
unit( [AT (time of significant point )];
d)
STOP CLIMB (or DESCENT) TO (level)
e)
CONTINUE CLIMB (or DESCENT TO (level)
f)
EXPEDITE CLIMB (or DESCENT) [UNTIL PASSING (level)];
g)
WHEN READY CLIMB (of DESCENT) TO (level);
h)
EXPECT CLIMB (or DESCENT) AT (time or significant point);
i)
REQUEST DESCENT AT (time);*
j)
IMMEDIATELY;
|
|
…
to require action at a specific time or place
…to
require action when convenient
…to
require an aircraft to climb of descend maintaining own separation
and VMC
…when there is doubt that an aircraft can comply with a clearance of
instruction
…when a pilot is unable to comply with a clearance of instruction
…after modifying vertical speed to comply with ad ACAS resolution advisory
(Pilot & controller interchange)
…after ACAS “Clear of Conflict” is annunciated (Pilot & controller
interchange)
…after the response to an ACAS resolution advisory is completed (Pilot &
controller interchange)
…after returning to clearance after responding to an ACAS resolution
advisory (Pilot & controller interchange)
…
when unable to comply with a clearance because of an ACAS resolution
advisory (Pilot & controller interchange) |
k)
AFTER PASSING (significant point)
l)
AT (time of significant point)
m)
WHEN READY (instruction)
n)
MAINTAIN OWN SEPARATION AND VMC [FROM (level) [TO (level)]
o)
MAINTAIN OWN SEPARATION AND VMB ABOVE (or BELOW, or TO (level;
p)
If unable (alternative instructions) AND ADVISE;
q)
*UNABLE;
r)
*TCAS CLIMB (or DESCENT);
s)
(acknowledgement);
t)
*RETURNING TO (assigned clearance);
u)
(acknowledgement) (or alternative instructions);
v)
*TCAS CLIMB (or DESCENT) RETURNING TO
(assigned clearance);
w)
(acknowledgement) (or alternative instructions);
x)
*TCAS CLIMB (or DESCENT) – COMPLETED
(assigned clearance) RESUMED
y)
(acknowledgement) (or alternative instructions);
z)
*UNABLE, TCAS RESOLUTION ADVISORY;
aa)
(acknowledgement)
*
Denotes pilot transmission.
|
|
Transfer of control and/or frequency change
Note – An aircraft may be requested to “STAND BY” on a frequency when it
is intended that the ATS unit will initiate communications soon and to
“MONITOR” a frequency when information is being broadcast thereon.
Change of call sign
…
to instruct an aircraft to change its type of call sign
…to
advise an aircraft to revert to the call sign indicated in the flight plan
Traffic information
…to
pass traffic information
…to
acknowledge traffic information
|
a)
CONTACT (unit call sign) (frequency) [NOW];
b)
AT (or OVER) (time or place) [or WHEN] [PASSING/LEAVING/REACHING]
(level)] CONTACT (unit call sign) (frequency);
c)
IF NO CONTACT (instructions);
d)
STAND BY (frequency) FOR (unit call sign);
e)
*REQUEST CHANGE TO (frequency);
f)
FREQUENCY CHANGE APPROVED;
g)
MONITOR (unit call sign) (frequency);
h)
*MONITORING (frequency);
i)
WHEN READY CONTACT (unit call sign) (frequency)
j)
REMAIN THIS FREQUENCY.
* Denotes
pilot transmission
a)
CHANGE YOUR CALL SIGN TO (new call sign) [UNTIL FURTHER ADVISED]
b)
REVERT TO FLIGHT PLAN CALL SIGN (call sign) [AT (significant
point)]
a)
TRAFFIC (information)
b)
NO REPORTED TRAFFIC;
c)
* LOOKING
OUT;
d)
* TRAFFIC IN SIGHT;
e)
* NEGATIVE CONTACT (reasons)
f)
[ADDITIONAL] TRAFFIC (direction) BOUND (type of aircraft) (level)
ESTIMATED (or OVER) (significant point) AT (time);
|
|
|
g)
TRAFFIC IS (classification) UNMANNED FREE BALLOON (S) WAS [or
ESTIMATED] OVER (place) AT (time) REPORTED (level(s) [or LEVEL UNKNOWN]
MOVING (direction) (other pertinent information, if any)
* Denotes
pilot transmission |
|
Meteorological conditions
…for multiple RVR observations
…in
the event that RVR information on any one position is not available this
information will be included in the appropriate sequence.
|
a)
[SURFACE] WIND (number) DEGREES (speed) (units);
b)
WIND AT (level) (number) DEGREES (number) (KNOTS)
Note – Wind is always expressed by giving the mean direction and speed and
any significant variations thereof.
c)
VISIBILITY (distance) (units) [direction]
d)
RUNWAY VISUAL RANGE (or RVR) [RUNWAY (number)] (distance) (units);
e)
RUNWAY VISUAL RANGE (or RVR) [RUNWAY (number)] NOT AVAILABLE (or
NOT REPORTED)
f)
RUNWAY VISUAL RANGE (or RVR) [RUNWAY (number)] (first position)
(distance) (units), (second position) (distance) (units), (third position)
(distance) (units);
Note 1 – Multiple RVR observations are always representative of the
touchdown zone, midpoint zone and the roll-out/stop zone respectively.
Note 2 – where reports for three locations are given the indication of
these locations may be omitted, provided that the reports are passed in
the order of touchdown zone, followed by the midpoint zone and ending with
the roll-out/stop end zone report.
g)
RUNWAY VISUAL RANGE (or RVR) [RUNWAY (number)] (first position)
(distance) (units), (second position) NOT AVAILABLE, (third position)
(distance) (units)
h)
PRESENT WEATHER (details);
i)
CLOUD (amount [(type)] and height of base) (units) (of SKY CLEAR);
|
|
|
j)
CAVOK;
Note – CAVOK pronounced CAV-O-KAY.
k)
TEMPERATURE [MINUS] (number) (and/or) DEW-POINT [MINUS] (number);
l)
QNH (number) [(units)] ;
m)
QFE (number) [(units)] ;
n)
(aircraft type) REPORTED (description) ICING (or TURBULENCE) [IN
CLOUD] (area) (time);
o)
REPORT FLIGHT CONDITIONS |
|
Position reporting
…to
omit position reports until a specified position
|
a)
NEXT REPORT AT (significant point)
b)
OMIT POSITION REPORTS [UNTIL (specify)]
c)
RESUME POSITION REPORTING
|
|
Additional reports
…to
request a report at a specified place of distance.
…to
request a report of present position
|
a)
REPORT PASSING (significant point);
b)
REPORT (distance) FROM (name of DME station) DME
c)
REPORT PASSING (three digits) RADIAL (name of VOR) VOR;
d)
REPORT DISTANCE FROM (significant point);
e)
REPORT DISTANCE FROM (name of DME station) DME;
|
|
Aerodrome information
|
a)
[(location) RUNWAY SURFACE CONDITION RUNWAY (number) (condition);
b)
[(location) RUNWAY SURFACE CONDITION RUNWAY (number) NOT CURRENT;
c)
LANDING SURFACE (condition);
d)
CAUTION CONSTRUCTION WORK (location);
e)
CAUTION (specify reasons) RIGHT (or LEFT) (or BOTH SIDES) OF RUNWAY
[number];
|
|
|
f)
CAUTION WORK IN PROGRESS (or OBSTRUCTION) (position and any
necessary advice)
g)
RUNWAY REPORT AT (observation time) RUNWAY (number) (type of
precipitant) UP TO (depth of deposit) MILLIMETERS. BRAKING ACTION
GOOD (or MEDIUM TO POOR, or POOR or UNRELIABLE) [and/or BRAKING
COEFFICIENT (equipment and number)
h)
BRAKING ACTION REPORTED BY (aircraft type) AT (time) GOOD (or
MEDIUM or POOR);
i)
BRAKING ACTION [(location)[ (measuring equipment used), RUNWAY
(number), TEMPERATURE [MINUS] (number), WAS (reading) AT (time);
j)
RUNWAY (or TAXIWAY) (number) WET (or DAMP, WATER PATCHES, FLOODED
(depth) or SNOW REMOVED (length and width as applicable), or TREATED, or
COVERED WITH PATCHES or DRY SNOW (or WET SNOW, or COMPACTED SNOW, or
SLUSH, or FROZEN SLUSH, or ICE, or ICE UNDERNEATH, or ICE AND SNOW, or
SNOWDRIFTS, or FROZEN RUTS and RIDGES)];
k)
TOWER OBSERVES (weather information)
l)
PILOT REPORTS (weather information) |
|
Operational status of visual and non-visual aids |
a)
(specific visual or non-visual aid) RUNWAY (number) (description of
deficiency);
b)
(type) LIGHTING (unserviceability)
c)
ILS CATEGORY (category) (serviceability state)
d)
TAXIWAY LIGHTING (description of deficiency)
e)
(type of visual approach slope indicator) RUNWAY (number)
(description of deficiency); |
|
Area control Services
Issuance of a clearance |
a)
(name of unit) CLEARS (aircraft call sign);
b)
(aircraft call sign) CLEARED TO;
c)
RE-CLEARED (amended clearance details) [REST OF CLEARANCE
UNCHANGED]
d)
RE-CLEARS (amended route portion) TO (significant point of original
route) [REST OF CLEARANCE UNCHANGED]
e)
ENTER CONTROLLED AIRSPACE (or CONTROL ZONE) [VIA (significant point
or route)] AT (level) [AT (time)]
f)
LEAVING CONTROLLED AIRSPACE (or CONTROL ZONE) [VIA (significant
point or route)] AT (level) (of CLIMBING, or DESCENDING);
g)
JOIN (specify) AT (significant point) AT (level) [AT (time)] |
|
Indication of route and clearance limit |
a)
FROM (location) TO (location);
b)
TO (location),
Followed as necessary by:
i)
Direct;
ii)
VIA (route and/or significant points)
iii)
VIA FLIGH PLANNED ROUTE;
Note – Conditions associated with the use of this phrases are in Part 111,
12.2 (Doc 4444) not included
iv)
VIA (distance) DME ARC (direction) of (name of DME station)
c)
(route) NOT AVAILABLE DUE (reason) ALTERNATIVE [S] IS/ARE (routes) ADVISE.
|
|
Maintenance of specified levels |
a)
MAINTAIN (level) [TO (significant point)]
b)
MAINTAIN (level) UNTIL PASSING (significant point)
c)
MAINTAIN (level) UNTIL PASSING (significant point)
d)
MAINTAIN (level) UNTIL (time)
e)
MAINTAIN (level) UNTIL ADVISED BY (name of unit)
f)
MAINTAIN (level) UNTIL FURTHER ADVISED |
|
|
g)
MAINTAIN (level) WHILE IN CONTROLLED AIRSPACE
h)
MAINTAIN BLOCK (level) TO (level).
Note – the term “MAINTAIN” is not to be used in lieu of “DESCEND” of
“CLIMB” when instructing an aircraft to change level. |
|
Specification of cruising levels |
a)
CROSS (significant point) AT (or ABOVE, or BELOW) (level);
b)
CROSS (significant point) AT (time) or LATER (or BEFORE) AT
(level);
c)
CRUISE CLIMB BETWEEN (levels) (of ABOVE (level));
d)
CROSS (distance) DME [(direction)] OF (name of DME station) AT (or
ABOVE of BELOW level)
|
|
Emergency descent |
a)
* EMERGENCY DESCENT (intentions);
b)
ATTENTION ALL AIRCRAFT IN THE VICINITY OF [or AT] (significant
point or location) EMERGENCY DESCENT IN PROGRESS FORM (level) (followed as
necessary by specific instructions, clearances, traffic information etc)
*
Denotes pilot transmission. |
|
If
clearance cannot be issued immediately upon request |
EXPECT CLEARANCE (or type of clearance) AT (time). |
|
Separation instructions |
a)
CROSS (significant point) AT (time) [or LATER (or BEFORE)];
b)
ADVISE IF ABLE TO CROSS (significant point) AT (time or level);
c)
MAINTAIN MACH (number) [OR GREATER (or LESS) [UNTIL (significant
point)]
d)
DO NOT EXCEED MACH (number)
|
|
Instructions associated with flying a track (offset), parallel to the
cleared route. |
a)
ADVISE IF ABLE TO PROCEED PARALLEL OFFSET,
b)
PROCEED OFFSET (distance) RIGHT/LEFT OF (route) (track) [CENTRE
LINE] [AT (significant point or time)] [UNTIL (significant point of
time)];
|
|
Approach Control Services
Departure instructions |
a)
[AFTER DEPARTURE] TURN RIGHT (or LEFT HEADING (three digits) (or
CONTINUE RUNWAY HEADING) (or TRACK EXTENDED CENTRE LINE) TO (level or
significant point) [(other instructions as required)];
b)
AFTER REACHING (or PASSING) (level or significant point)
(instructions)
c)
TURN RIGHT (or LEFT) HEADING (three digits) TO (level) [TO
INTERCEPT (track, route, airway etc)
d)
(standard departure name and number) DEPARTURE;
e)
TRACK (three digits) DEGREES [MAGNETIC (or TRUE)] TO (or FROM)
(significant point) UNTIL (time or REACHING (fix or level or significant
point) [BEFORE PROCEEDING ON COURSE
Note – Conditions associated with the use of this phrases are in Part III,
12.2 (Doc 4444) not included |
|
Approach Instructions |
a)
CLEARED (or PROCEED) VIA (designation;
b)
CLEARED TO (clearance limit) VIA (designation);
c)
CLEARED (or PROCEED) VIA (details of route to be followed)
d)
CLEARED (type of approach) APPROACH [RUNWAY (number)]
e)
CLEARED (type of approach) RUNWAY (number) FOLLOWED BY CIRCLING TO
RUNWAY (number)
f)
CLEARED APPROACH [RUNWAY (number)]
g)
COMMENCE APPROACH AT (time)
h)
*REQUEST STRAIGHT-IN [(type of approach)]
APPROACH [RUNWAY (number)]
i)
CLEARED STRAIGHT-IN [(type of approach)] APPROACH [RUNWAY (number)]
j)
REPORT VISUAL
|
|
|
k)
REPORT RUNWAY [LIGHTS] IN SIGHT;
l)
*REQUEST VISUAL APPROACH
m)
CLEARED VISUAL APPROACH RUNWAY (number)
n)
REPORT (significant point); [OUTBOUND or INBOUND];
o)
REPORT COMMENCING PROCEDURE TURN
p)
*REQUEST VMC DESCENT
q)
MAINTAIN OWN SEPERATION
r)
MAINTAIN VMC
s)
ARE YOU FAMILIAR WITH (name) APPROACH PROCEDURE
t)
*REQUEST (type of approach) APPROACH [RUNWAY(number)]
u)
REQUEST (RNAV plain language designator)
v)
CLEARED (RNAV plain language designator)
* Denotes
pilot transmission |
|
Holding clearances
….visual
…published holding procedure over a facility of fix
…when a detailed holding clearance is required |
a)
HOLD VISUAL [OVER] (position) (or BETWEEN (two prominent
landmarks))
b)
CLEARED (or PROCEED) TO (significant point, name of facility or
fix) [MAINTAIN (or CLIMB or DESCENT TO) (level)] HOLD [(direction)] AS
PUBLISHED EXPECT APPROACH CLEARANCE (or FURTHER CLEARANCE) AT (time)
c)
*REQUEST HOLDING INSTRUCTIONS
d)
CLEARED (or PROCEED) TO (significant point, name of facility or
fix) [MAINTAIN (or CLIMB or DESCENT TO) (level)] HOLD [(direction)]
[(specified) RADIAL, COURSE, INBOUND TRACK (three digits) DEGREES] [RIGHT
(or LEFT) HAND PATTERN] [OUTBOUND TIME (number) MINUTES] EXPECT APPROACH
CLEARANCE (or FURTHER CLEARANCE) AT (time) (additional instructions, if
necessary);
|
|
|
e)
CLEARED TO THE (three digits) RADIAL OF THE (name) VOR AT
(distance) DME FIX [MAINTAIN (or CLIMB or DESCEND TO (level)] HOLD
[(direction)] [RIGHT (or LEFT) HAND PATTERN] [OUTBOUND TIME (number)
MINUTES] EXPECT APPROACH CLEARANCE (or FURTHER CLEARANCE) AT (time)
(additional instructions, if necessary)
f)
CLEARED TO THE (three digits) RADIAL OF THE (name) VOR AT
(distance) DME FIX [MAINTAIN (or CLIMB or DESCEND TO (level)] HOLD BETWEEN
(distance) AND (distance) DME [RIGHT (or LEFT) HAND PATTERN] EXPECT
APPROACH CLEARANCE (or FURTHER CLEARANCE) AT (time) (additional
instructions, if necessary)
* Denotes
pilot transmission
|
|
Expected approach time |
a)
NO DELAY EXPECTED,
b)
EXPECTED APPROACH TIME (time);
c)
REVISED EXPECTED APPROACH TIME (time)
d)
DELAY NOT DETERMINED (reasons)
|
|
Identification of aircraft |
SHOW LANDING LIGHTS
|
|
Acknowledgement by visual means |
a)
ACKNOWLEDE BY MOVING AILERONS (or RUBBER)
b)
ACKNOWLEDGE BY ROCKING WINGS
c)
ACKNOWLEDGE BY FLASHING LANDING LIGHTS
|
|
Starting procedures
…to
request permission to start engines
…ATC
replies |
a)
*[aircraft location] REQUEST START UP
b)
*[aircraft location] REQUEST START UP,
INFORMATION (ATIS identification)
c)
START UP APPROVED
d)
START UP AT (time)
e)
EXPECTED START UP AT (time)
f)
START UP AT OWN DISCRETION
g)
EXPECT DEPARTURE (time) START UP AT OWN DISCRETION
* Denotes
pilot transmission |
|
Push-back procedures
Note – When local procedures so prescribe, authorisation for pushback
should be obtained from the control tower.
…aircraft/ATC |
a)
*[aircraft location] REQUEST PUSH BACK
b)
PUSH BACK APPROVED
c)
STAND BY
d)
PUSH BACK AT OWN DISCRETION
e)
EXPECT (number) MINUTES DELAY TO (reason);
* Denotes
pilot transmission
|
|
Towing procedures
…ATC
response
|
a)
#REQUEST TOW [company name] (aircraft type) FROM (location) TO
(location)
b)
TOW APPROVED VIA (specific routing to be followed)
c)
HOLD POSITION
d)
STAND BY
#
Denotes transmission from aircraft/tow vehicle combination |
|
To
request time check and/or aerodrome data for departure
…when no ATIS broadcast is available |
a)
*
REQUEST TIME CHECK;
b)
TIME (time)
c)
*REQUEST DEPARTURE INFORMATION
d)
RUNWAY (number) WIND (direction and speed); (units) QNH (or QFE)
(number) [(units) TEMPERATURE [MINUS] (number), [VISIBILITY (distance)
(units) (or RUNWAY VISUAL RANGE (or RVR) (distance) (units)] [TIME (time)]
Note – If multiple visibility and RVR observations are available, those
that represent the roll-out/stop end zone should be used for take-off.
* Denotes
pilot transmission.
|
|
Taxi procedures
…for departure
…where detailed taxi instructions are required
…where aerodrome information is not available from an alternative source
such as ATIS
…for helicopter operations
…after landing |
a)
*[aircraft type] [wake turbulence category
if “heavy”] [aircraft location] REQUEST TAXI [intentions]
b)
*[aircraft type] [wake turbulence category
if “heavy”] [aircraft location] (flight rules) TO (aerodrome of
destination) REQUEST TAXI [intentions]
c)
TAXI TO HOLDING POSITION [number] [RUNWAY (number)] [TIME (time)]
d)
*[aircraft type] [wake turbulence category if “heavy”] REQUEST DETAILED
TAXI INSTRUCTIONS
e)
TAXI TO HOLDING POSITION [(number)] [RUNWAY (number) VIA (specific
route to be followed) [TIME (time)] [HOLD SHORT OF RUNWAY (number)]
f)
TAXI TO HOLDING POSITION [(number)] (followed by aerodrome
information as applicable) [TIME (time)]
g)
TAKE (or TURN) FIRST (or SECOND) LEFT (or RIGHT)
h)
TAXI VIA (identification of taxiway)
i)
TAXI VIA RUNWAY (number)
j)
TAXI TO TERMINAL (or other location, e.g. GENERAL AVIATION AREA)
[STAND (number)]
k)
*REQUEST AIR-TAXIING FROM (or VIA) TO
(location or routing as appropriate)
l)
AIR-TAXI TO (or VIA) (location or routing as appropriate [CAUTION
(dust, blowing snow, loose debris, taxiing light aircraft, personnel,
etc)]
m)
AIR TAXI VIA (direct, as requested, or specified route) TO
(location, heliport, operating or movement area, active or inactive
runway). AVOID (aircraft or vehicles or personnel)
n)
*
REQUEST BACKTRACK
o)
BACKTRACK APPROVED
p)
BACKTRACK RUNWAY (number)
|
|
…general |
q)
*[(aircraft location)] REQUEST TAXI TO
(destination on aerodrome)
r)
TAXI STRAIGHT AHEAD
s)
TAXI WITH CAUTION
t)
GIVE WAY TO (description and position of other aircraft)
u)
*GIVING WAY TO (traffic)
v)
*TRAFFIC (or type of aircraft) IN SIGHT
w)
TAXI INTO HOLDING BAY
x)
FOLLOW ( description of other aircraft or vehicle)
y)
VACATE RUNWAY
z)
*RUNWAY VACATED
aa)
EXPEDITE TAXI [(reason)]
bb)
*EXPEDITING
cc)
[CAUTION] TAXI SLOWER (reason)
dd)
*SLOWING DOWN
Denotes pilot transmission
|
|
Holding
…to
hold not closer to a runway than specified in Part V, 10.3 |
a)
“”HOLD (direction) OF (position, runway number, etc)
b)
“”HOLD POSITION
c)
“”HOLD (distance) FROM (position)
d)
“”HOLD SHORT OF (position)
e)
*HOLDING
f)
*HOLDING SHORT
“”Requires specific acknowledgement from the pilot.
*Denotes
pilot transmission. The procedure words ROGER and WILCO are
insufficient acknowledgement of the instructions HOLD, HOLD POSITION and
HOLD SHORT OF (position). In each case the acknowledgement shall be
by the phraseology HOLDING or HOLDING SHORT, as appropriate. |
|
|
#
where there is a possibility of confusion during multiple runway
operations
ƒ
Provisions concerning the use of conditional clearances are contained in
2.4 (not included) |
|
Take-off clearance
…when more than one runway is in use
…when take-off clearance has not been complied with
…to
cancel a take-off clearance
…to
stop a take-off after an aircraft has commenced take-off roll
…for helicopter operations
|
a)
CLEARED FOR TAKE-OFF [REPORT AIRBORNE];
b)
RUNWAY (number) CLEARED FOR TAKE-OFF
c)
TAKE-OFF IMMEDIATELY OF VACATE RUNWAY [(instructions)];
d)
TAKE-OFF IMMEDIATELY OR HOLD SHORT OF RUNWAY
e)
HOLD POSITION, CANCEL TAKE-OFF I SAY AGAIN CANCEL TAKE-OFF
(reasons)
f)
*HOLDING;
g)
STOP IMMEDIATELY [(repeat aircraft call sign) STOP IMMEDIATELY]
h)
*STOPPING
i)
CLEARED FOR TAKE-OFF [FROM (location)] (repeat position, taxiway,
final approach and take-off area, runway and number)
j)
*REQUEST FOR DEPARTURE INSTRUCTIONS
k)
AFTER DEPARTURE TURN RIGHT (or LEFT, of CLIMB) (instructions as
appropriate).
*
Denotes pilot transmission, HOLDING and
STOPPING are the procedural responses to (e)
and (g) respectively
|
|
Turn of climb instructions after take-off
…to request airborne time
…heading to be followed |
a)
REQUEST RIGHT (or LEFT) TURN
b)
RIGHT (or LEFT) TURN APPROVED
c)
WILL ADVISE LATER FOR RIGHT (or LEFT) TURN
d)
REPORT AIRBORNE
e)
AIRBORNE (time)
f)
AFTER PASSING (level) (instructions)
g)
CONTINUE RUNWAY HEADING (instructions)
|
|
…when a specific track is to be followed |
h)
TRACK EXTENDED CENTRE LINE (instructions)
i)
CLIMB STRAIGHT AHEAD (instructions)
* Denotes
pilot transmission.
|
|
Entering an aerodrome traffic circuit
…when right hand traffic circuit in use
…when ATIS information is available
|
a)
*[aircraft type] (position) (level) FOR
LANDING;
b)
JOIN (position in circuit) (direction of circuit) (runway number)
[SURFACE] WIND (direction and speed) (units) [TEMPERATURE [MINUS] (number)
QNH (or QFE) (number [(units)] [TRAFFIC (detail)]
c)
MAKE STRAIGHT-IN APPROACH, RUNWAY (number) [SURFACE] WIND
(direction and speed) (units) [TEMPERATURE [MINUS] (number) QNH (or QFE)
(number) [(units)] [TRAFFIC (detail)]
d)
JOIN RIGHT HAND (position in circuit) (runway number) [SURFACE]
WIND (direction and speed) (units) [TEMPERATURE [MINUS] (number)] QNF (or
QFE) (number) [(units)] [TRAFFIC (detail)]
e)
*[aircraft type] (position) (level)
INFORMATION (AITS identification) FOR LANDING;
f)
JOIN (position in circuit) (direction of circuit) RUNWAY (number)
QNH (or QFE) (number [(units)] [TRAFFIC (detail)]
* Denotes
pilot transmission
|
|
In
the circuit |
a)
*(position in circuit, e.g.
DOWNWIND/FINAL)
b)
NUMBER … FOLLOW (aircraft type and position [additional
instructions if required]
* Denotes pilot
transmission
|
|
Approach instructions
Note – The report “LONG FINAL” is made when an aircraft turn on to final
approach at a distance greater that 7km (4NM) from touchdown or when an
aircraft on a straight-in approach is 15km (8NM) from touchdown. In
both cases a report “FINAL” is required at 7km (4NM) form touchdown. |
a)
MAKE SHORT APPROACH
b)
MAKE LONG APPROACH (or EXTEND DOWNWIND)
c)
REPORT BASE (or FINAL, or LONG FINAL)
d)
CONTINUE APPROACH [PREPARE FOR POSSIBLE GO AROUND] |
|
Landing
…multiple runway operations
…to
make an approach along, or parallel to a runway, descending to an agreed
minimum level
…to
flypast the control tower or other observation point for the purpose of
visual inspection by persons on the ground. |
a)
CLEARED TO LAND
b)
RUNWAY (number) cleared to land
c)
CLEARED TOUCH AND GO
d)
MAKE FULL STOP
e)
*REQUEST LOW APPROACH (reasons)
f)
CLEARED LOW APPROACH [RUNWAY (number)] [(altitude restriction if
required) (go around instructions)]
g)
*REQUEST LOW PASS (reasons)
h)
CLEARED LOW PASS [(as in f)]
i)
*REQUEST STRAIGHT-IN (or CIRCLING
APPROACH, LEFT (or RIGHT) TURN TO (location))
j)
MAKE STRAIGHT-IN (or CIRCLING APPROACH, LEFT (or RIGHT) TO
(location, runway, taxiway, final approach and take-off area)) [ARRIVAL
(or ARRIVAL ROUTE) (number, name or code)] [HOLD SHORT OF (active runway,
extended runway centre line, other)] [REMAIN (direction or distance) FROM
(runway, runway centre line, other helicopter or aircraft)] [CAUTION
(power lines, unlighted obstructions, wake turbulence etc)] CLEARED TO
LAND.
* Denotes
pilot transmission
|
|
Delaying aircraft
|
a)
CIRCLE THE AERODROME
b)
ORBIT (RIGHT or LEFT) [FROM PRESENT POSITION]
c)
MAKE ANOTHER CIRCUIT
|
|
Missed Approach
|
a)
GO AROUND
b)
*GOING AROUND
* Denotes
pilot transmission
|
|
Information to aircraft
…when pilot requested visual inspection of landing gear |
a)
LANDING GEAR APPEARS DOWN
b)
RIGHT (or LEFT or NOSE) WHEEL APPEARS UP (or DOWN)
|
|
…wake turbulence
…jet blast on apron or taxiway
… propeller-driven aircraft slipstream |
c)
WHEELS APPEAR UP
d)
RIGHT (or LEFT or NOSE) WHEEL DOES NOT APPEAR UP (or DOWN)
e)
CAUTION WAKE TURBULENCE [FROM ARRIVING (or DEPARTING) (type of
aircraft)] [additional information as required]
f)
CAUTION JET BLAST
g)
CAUTION SLIPSTREAM
|
|
Runway vacating and communications after landing
…for helicopter operations |
a)
CONTACT GROUND (frequency)
b)
WHEN VACATED CONTACT GROUND (frequency)
c)
EXPEDITE VACATING
d)
YOUR STAND (or GATE) (designation)
e)
TAKE (or TURN) FIRST (or SECOND or CONVENIENT) LEFT (or RIGHT) AND
CONTACT GROUND (frequency)
f)
AIR-TAXI TO HELICOPTER STAND (or) HELICOPTER PARKING POSITION
(area)
g)
AIR-TAXI (or VIA) (location or routing as appropriate) [CAUTION
(dust, blowing snow, loose debris, taxing light aircraft, personnel etc)]
h)
AIR-TAXI VIA (direct, as requested, or specified route) TO
(location, heliport, operating or movement area, active or inactive
runway. AVOID (aircraft or vehicles or personnel)
|
|
Co-ordination between ATS units
Estimates and revisions
…sending unit
…receiving unit reply (if flight plan details are not available)
…receiving unit reply (if flight plan details are available)
…sending unit reply |
a)
ESTIMATE [direction of flight] (aircraft call sign) [SQUAWKING (SSR
code)] (type) ESTIMATED (significant point) (rime) (level) (or
DESCENDING FROM (level) TO (level) [SPEED (filed TAS)] (route) [REMARKS]
b)
ESTIMATE (significant point) ON (aircraft call sign)
c)
NO DETAILS
(aircraft type)
(destination)
[SQUAWKING (SSR code)
[ESTIMATED] (significant point) (time) AT (level)
|
|
|
Note – In the event that flight plan details are not available the
receiving station shall reply to b) NO DETAILS and transmitting station
shall pass full estimate as in a)
d)
ESTIMATE UNMANNED FREE BALLOON(S) (identification and
classification) ESTIMATED OVER (place) AT (time) REPORTED FLIGHT LEVEL(S)
(figure or figures) [or FLIGHT LEVEL UNKNOWN] MOVING (direction) ESTIMATED
GROUND SPEED (figure) (other pertinent information, if any)
e)
REVISION (aircraft call sign) (details as necessary)
|
|
Transfer of control |
a)
REQUEST RELEASE OF (aircraft call sign)
b)
(aircraft call sign) RELEASED [AT (time)] [conditions and
restrictions]
c)
IS (aircraft call sign) RELEASED [FOR CLIMB (or DESCENT)]
d)
(aircraft call sign) NOT RELEASED [UNTIL (time or significant
point)]
e)
UNABLE (aircraft call sign) [TRAFFIC IS (details)]
|
|
Change of clearance |
a)
MAY WE CHANGE CLEARANCE OF (aircraft call sign) TO (details of
alteration proposed)
b)
AGREED TO (alterations of clearance) OF (aircraft call sign)
c)
UNABLE (aircraft call sign)
d)
UNABLE (desired route, level etc) FOR (aircraft call sign) [DUE
(reason)] (alternative clearance proposed)
|
|
Approval request |
a)
APPROVAL REQUEST (aircraft call sign) ESTIMATED DEPARTURE FROM
(significant point) AT (time)
b)
(aircraft call sign) REQUEST APPROVED [(restriction if any)]
c)
(aircraft call sign) UNABLE (alternative instructions)
|
|
Inbound release |
a)
[INBOUND RELEASE] (aircraft call sign) [SQUAWKING (SSR code)]
(type) FROM (departure point) RELEASED AT (significant point, or time or
level) CLEARED TO AND ESTIMATING (clearance limit) (time) AT (level)
[EXPECTED APPROACH TIME or NO DELAY EXPECTED] CONTACT AT (time)
|
|
Radar handover |
a)
RADAR HANDOVER (aircraft call sign) [SQUAWKING (SSR code)] POSITION
(aircraft position) (level)
|
|
Expedition of clearance |
a)
EXPEDITE CLEARANCE (aircraft call sign) EXPEDITED DEPARTURE FROM
(place) AT (time)
b)
EXPEDITE CLEARANCE (aircraft call sign) [ESTIMATED] OVER (place) AT
(time) REQUESTS (level or route etc)
|
|
Identification of aircraft |
a)
REPORT HEADING [AND FLIGHT LEVEL (or ALTITUDE)]
b)
FOR IDENTIFICATION TURN LEFT (or RIGHT) HEADING (three digits)
c)
TRANSMIT FOR IDENTIFICATION AND REPORT HEADING
d)
RADAR CONTACT [position]
e)
IDENTIFIED [position]
f)
NOT IDENTIFIED [reason], [RESUME (or CONTINUE) OWN NAVIGATION]
|
|
Position information |
POSITION (distance) (direction) OR (significant point) (or OVER or ABEAM
(significant point))
|
|
Vectoring instructions |
a)
LEAVE (significant point) HEADING (three digits)
b)
CONTINUE HEADING (three digits)
c)
CONTINUE PRESENT HEADING
d)
FLY HEADING (three digits)
e)
TURN LEFT (or RIGHT) (three digits) [reason]
f)
TURN LEFT (or RIGHT) (number of degrees) DEGREES [reason]
g)
STOP TURN HEADING (three digits)
h)
FLY HEADING (three digits), WHEN ABLE PROCEED DIRECT (name)
(significant point)
|
|
|
i)
HEADING IS GOOD |
|
Termination of radar vectoring |
a)
RESUME OWN NAVIGATION (position of aircraft) (specific
instructions)
b)
RESUME OWN NAVIGATION [DIRECT] (significant point) [MAGNETIC TRACK
(three digits) DISTANCE (number) MILES]
|
|
Manoeuvres
…(in case of unreliable directional instruments on board aircraft)
Note – when it is necessary to specify a reason for radar vectoring or for
the above manoeuvres, the following phraseologies should be used:
a)
DUE TRAFFIC
b)
FOR SPACING
c)
FOR DELAY
d)
FOR DOWNWIND (or BASE, or FINAL) |
a)
MAKE A THREE SIXTY TURN LEFT (or RIGHT [reason]
b)
ORBIT LEFT (or RIGHT) [reason]
c)
MAKE ALL TURNS RATE ONE (or RATE HALF or (number) DEGREES PER
SECOND) START AND STOP ALL TURNS ON THE COMMAND "NOW”
d)
TURN LEFT (or RIGHT) NOW
e)
STOP TURN NOW
|
|
Speed control |
a)
REPORT SPEED
b)
SPEED (number) KNOTS PER HOUR
c)
MAINTAIN (number) KNOTS PER HOUR [OR GREATER (or) OR LESS] [UNTIL
(significant point)]
d)
DO NOT EXCEED (number) KNOTS PER HOUR
e)
MAINTAIN PRESENT SPEED
f)
INCREASE (or REDUCE) SPEED TO (number) KNOTS PER HOUR [OR GREATER
(or OR LESS)]
g)
INCREASE (or REDUCE) SPEED BY (number) KNOTS PER HOUR
h)
RESUME NORMAL SPEED
i)
REDUCE TO MINIMUM APPROACH SPEED
j)
REDUCE TO MINIMUM CLEAN SPEED
k)
NO [ATC] SPEED RESTRICTIONS |
|
Position reporting
…to
omit position reports when under radar control |
a)
OMIT POSITION REPORTS [UNTIL (specify)]
b)
NEXT REPORT AT (significant time)
c)
REPORTS REQUIRED ONLY AT (significant point(s))
d)
RESUME POSITION REPORTING
|
|
Traffic information and avoiding action
…(if known)
…to
request avoiding action
…when passing unknown traffic
…for avoiding action |
a)
TRAFFIC (number) O’CLOCK (distance) (direction of flight) [any
other pertinent information]
1)
UNKNOWN
2)
SLOW MOVING
3)
FAST MOVING
4)
CLOSING
5)
OPPOSITE (or SAME) DIRECTION
6)
OVERTAKING
7)
CROSSING LEFT TO RIGHT (or RIGHT to LEFT)
8)
(aircraft type)
9)
(level)
10)
CLIMBING (or DESCENDING)
b)
*REQUEST VECTORS
c)
DO YOU WANT VECTORS
d)
CLEAR OF TRAFFIC [appropriate instructions]
e)
TURN LEFT (or RIGHT) IMMEDIATELY HEADING (three digits) TO AVOID
[UNIDENTIFIED] TRAFFIC AT (bearing by clock-reference and distance)
f)
TURN LEFT (or RIGHT) (number of degrees) DEGREES IMMEDIATELY
TO AVOID [UNIDENTIFIED] TRAFFIC AT (bearing by clock-reference and
distance)
* Denotes pilot
transmission
|
|
Communications and loss of
communications
.. if loss
of communications suspected
Termination of radar services
Radar
equipment degradation
Vecoring
for approach
|
a)
[IF] RADIO
CONTACT IS LOST . (instructions)
b) IF NO
TRANSMISSION IS RECEIVED FOR (number) MINUTES (or SECONDS)
(instructions)
c)
REPLY
NOT RECEIVED (instructions)
d) IF YOU
READ [manoeuvre instructions or SQUAWK ( code or IDENT)];
e) (manoeuvre or
SQUAWK) OBSERVED POSITION (position of aircraft) WILL CONTINUE RADAR
CONTROL
a)
RADAR CONTROL TERMINATED [DUE (reason)];
b) RADAR SERVICE TERMINATED
(instructions)
c) WILL SHORTLY LOSE IDENTIFICATION
(appropriate instructions or information);
d) IDENTIFICATION LOST [reason]
(instructions)
a)
SECONDARY RADAR OUT OF SERVICE (appropriate instructions or information);
b) PRIMARY
RADAR OUT OF SERVICE (appropriate instructions or information)
a)
VECTORING FOR (type of pilot-interpreted aid) APPROACH RUNWAY (number)
b)
VECTORING FOR VISUAL APPROACH RUNWAY (number) REPORT FIELD (or RUNWAY) IN
SIGHT
c)
VECTORING FOR (positioning in the circuit);
d)
VECTORING FOR SURVEILLANCE RADAR APPROACH RUNWAY (number);
VECTORING
FOR PRECISION APPROACH RUNWAY (number);
f) (type)
APPROACH NOT AVAILABLE DUE (reason) (alternative instructions)
|
|
Vectoring for ILS and other pilot-interpreted aids
…when a pilot wishes to be positioned a specific distance from touchdown
…instructions and information |
a)
POSITION (number) (MILES) from (fix) TURN LEFT (or RIGHT) HEADING
(three digits)
b)
YOU WILL INTERCEPT (radio aid or track) (distance) FROM
(significant point or TOUCHDOWN)
c)
*REQUEST (distance) FINAL
d)
CLEARED FOR (type) APPROACH RUNWAY (number)
e)
REPORT ESTABLISHED [ON ILS (LOCALISER) or (GLIDEPATH)]
f)
CLOSING FROM LEFT (or RIGHT) [REPORT ESTABLISHED]
g)
TURN LEFT (or RIGHT) HEADING (three digits) [TO INTECEPT] or
[REPORT ESTABLISHED]
h)
EXPECT VECTOR ACROSS (localiser course or radio aid) [reason]
i)
THIS TURN WILL TAKE YOU THROUGH (localiser course or radio aid)
[reason]
j)
TAKING YOU THROUGH (localiser course or radio aid) [reason]
k)
MAINTAIN (altitude) UNTIL GLIDE PATH INTERCEPTION
l)
REPORT ESTABLISHED ON GLIDE PATH
m)
INTERCEPT (localiser course or radio aid) [REPORT ESTABLISHED]
* Denotes
pilot transmission
|
|
Manoeuvre during independent and dependant parallel approaches
…for avoidance action when an aircraft is observed penetrating the NTZ |
a)
CLEARED FOR ILS APPROACH RUNWAY (number) LEFT (or RIGHT)
b)
YOU HAVE CROSSED THE LOCALISER TURN LEFT (or RIGHT) IMMEDIATELY AND
RETURN TO THE LOCALISER
c)
ILS RUNWAY (number) LEFT (or RIGHT) LOCALISER FREQUENCY IS
(frequency)
d)
TURN LEFT (or RIGHT) (number) DEGREES (or HEADING) (three digits)
IMMEDIATELY TO AVOID TRAFFIC [DEVIATING FROM ADJACENT APPROACH] CLIMB TO
(altitude)
|
|
…for avoidance action below 120m (400ft) above the runway threshold
elevation where parallel approach obstacle assessment surfaces (PAOAS)
criteria are being applied |
e)
CLIMB TO (altitude) IMMEDIATELY TO AVOID TRAFFIC [DEVIATING FROM ADJACENT
APPROACH] (further instructions) |
|
Surveillance radar approach
Provision of service |
a)
THIS WILL BE SURVEILLANCE RADAR APPROACH RUNWAY (number)
TERMINATING AT (distance) FROM TOUCHDOWN, OBSTACLE CLEARANCE ALTITUDE (or
HEIGHT) (number) (FEET) CHECK YOUR MINIMA [INCASE OF GO AROUND]
(instructions)
|
|
Elevation |
a)
COMMENCE DESCENT NOW [TO MAINTAIN A (number) DEGREE GLIDE PATH
b)
(distance) FROM TOUCHDOWN ALTITUDE (or HEIGHT) SHOULD BE (numbers
and units)
|
|
Position |
(distance) FROM TOUCHDOWN |
|
Checks |
a)
CHECK GEAR DOWN [AND UNLOCKED]
b)
OVER THRESHOLD
|
|
Completion of approach |
a)
REPORT VISUAL
b)
REPORT RUNWAY [LIGHTS] IN SIGHT
c)
APPROACH COMPLETED [CONTACT
(unit)]
|
|
PAR
approach
Provision of Service |
a)
THIS WILL BE A PRECISION RADAR APPROACH RUNWAY (number)
b)
PRECISION APPROACH NOT AVAILABLE DUE TO (reason) (alternative
instructions)
c)
IN CASE OF GO AROUND (instructions)
|
|
Communications |
a)
DO NOT ACKNOWLEDGE FURTHER TRANSMISSIONS
b)
REPLY NOT RECEIVED, WILL CONTINUE INSTRUCTIONS
|
|
Azimuth |
a)
CLOSING [SLOWLY )or QUICKLY)] [FROM THE LEFT (or FROM THE RIGHT]
b)
HEADING IS GOOD
c)
ON TRACK |
|
|
d)
SLIGHTLY (or WELL, or GOING) LEFT (or RIGHT) OF TRACK
|
|
Elevation |
a)
APPROACH GLIDE PATH
b)
COMMENCE DESCENT NOW [AT (number) FEET PER MINUTE (or ESTABLISH A
(number) DEGREE GLIDE PATH)]
c)
RATE OF DESCENT IS GOOD
d)
ON GLIDE PATH
e)
SLIGHTLY (or WELL, or GOING) ABOVE (or BELOW) GLIDE PATH
f)
[STILL] (number) (FEET) TOO HIGH (or TOO LOW)
g)
ADJUST RATE OF DESCENT
h)
COMING BACK [SLOWLY (or QUICKLY)] TO THE GLIDE PATH
i)
RESUME NORMAL RATE OF DESCENT
j)
ELEVATION ELEMENT UNSERVICEABLE (to be followed by appropriate
instructions)
k)
(distance) FROM TOUCHDOWN. ALTITUDE (or HEIGHT) SHOULD BE
(numbers and units) |
|
Position |
a)
(distance) FROM TOUCHDOWN
b)
OVER APPROACH LIGHTS
c)
OVER THRESHOLD
|
|
Checks |
a)
CHECK GEAR DOWN AND LOCKED
b)
CHECK DECISION ALTITUDE (or HEIGHT)
|
|
Completion of approach |
a)
REPORT VISUAL
b)
REPORT RUNWAY [LIGHTS] IN SIGHT
c)
APPROACH COMPLETED [CONTACT (unit)]
|
|
Missed approach |
a)
CONTINUE VISUALLY OR GO AROUND [missed approach instructions]
b)
GO AROUND IMMEDIATELY [missed approach instructions[ (reason)
c)
ARE YOU GOING AROUND?
d)
IF GOING AROUND (appropriate instructions)
|
|
|
e)
*GOING AROUND
*Denotes
pilot transmission |
|
To
request the capability of the SSR equipment |
a)
ADVISE TRANSPONDER CAPABILITY
b)
*TRANSPONDER
(as shown in the flight plan)
c)
*NEGATIVE TRANSPONDER
*Denotes pilot
transmission |
|
To
instruct setting of transponder |
a)
FOR DEPARTURE SQUAWK (code)
b)
SQUAWK (code)
|
|
To
request the pilot to reselect the assigned mode and code |
a)
RESET SQUAWK [(mode)] (code)
b)
*RESETTING
(mode) (code)
*Denotes
pilot transmission |
|
To
request reselection of aircraft identification |
RESET MODES IDENTIFICATION |
|
To
request the pilot to confirm the Code selected on the aircraft’s
transponder |
a)
CONFIRM SQUAWK (code)
b)
*SQUAWKING
(code)
*Denotes
pilot transmission |
|
To
request the operation of the IDENT feature |
a)
CONFIRM SQUAWK [(code)] [AND] IDENT
b)
SQUAWK LOW
c)
SQUAWK NORMAL
|
|
To
request temporary suspension of transponder operation |
SQUAWK STANDBY |
|
To
request emergency code |
SQUAWK MAYDAY [CODE SEVEN-SEVEN-ZERO-ZERO] |
|
To
request termination of transponder operation |
STOP SQUAWK |
|
To
request transmission of pressure altitude |
SQUAWK CHARLIE |
|
To
request pressure setting check and confirmation of level |
CHECK ALTIMETER SETTING AND CONFIRM (level) |
|
To
request termination of pressure altitude transmission because of faulty
operation |
STOP SQUAWK CHARLIE WRONG INDICATION |
|
To
request level check |
CONFIRM (level) |
|
General ADS phraseologies
ADS
degradation |
ADS
(or AUTOMATIC DEPENDANT SURVEILLANCE) OUT OF SERVICE (appropriate
information as necessary) |
|
Alerting phraseologies
Low
altitude warning |
(aircraft call sign) LOW ALTITUDE WARNING, CHECK YOUR ALTITUDE
IMMEDIATELY, QNH IS (number). [THE MINIMUM FLIGHT ALTITUDE IS
(altitude)] |
|
Terrain alert |
(aircraft call sign) TERRAIN ALERT, (suggested pilot action, if possible)
* Denotes pilot transmission. |
MILITARY ATC
Military R/T procedures are identical except
in certain special cases
Example:- dealing with armed aircraft, special
operational missions etc.
-
With thanks for document typing - Jan Scheepers
-
-
For aviation safety awareness information purposes
only - Not for operational use
-
-
Source - The Radio Telephony procedures and Phraseology
ATNS/HO/C06/17 is a document of Air Traffic and Navigation Services
Company Ltd and we make no claim whatsoever to the document nor do we
imply any affiliation thereto
|