Question 5 Flashcards
1
Q
VT - RES WS wrng at OM Rwy 18
A
VT - RES Wind shear warning at Outer marker Runway 18
2
Q
AIP has section GEN, MAP, FAL
A
Aeronautical information publication has section general, aeronautical chart publish , facilitation
3
Q
X – RDL 156 3000 or abv
A
Crossing radial 156 altitude 3000’ or above
4
Q
SAR is being carried out by IAF RH
A
Search and rescue is being carried out by Indian Air Force rescue helicopter
5
Q
AI889 req ETO & your spd
A
Air India 889 request estimated time over Next significant reporting point and your speed
6
Q
VFR flight cannot be flown more than 100NM seaward from ______ in ______
A
VFR flight cannot be flown more than 100NM seaward from shoreline in controlled airspace
7
Q
EAT is the time ______ a delay an A/C will leave its ______ for its ______ to Land
A
EAT is the time following a delay an A/C will leave its holding fix for its approach to Land.
8
Q
A/C is in vicinity of aerodrome when it is leaving or entering _____
A
A/C is in vicinity of aerodrome when it is leaving or entering aerodrome traffic circuit
9
Q
Taxi is when a/C moves under its own power Excluding ______ and ________
A
Taxi is when a/C moves under its own power Excluding takeoff and landing
10
Q
VMC relate to met condition________ and ______,_______
A
VMC relate to met condition visibility and cloud ceiling, distance from clouds
11
Q
A/C is req dev by 17 NM due LSQ
A
Aircraft is requesting deviation by 17 nautical miles due line squall
12
Q
Hldg over NDB DP blw lvl 3500’ not permitted
A
Holding over non-directional beacon, DP below level altitude 3500 feet not permitted.
13
Q
NC in RENL OPNS
A
No change in primary runway end light operation
14
Q
Mntn ROD 600 till altitude 5000’
A
Maintain rate of decent 600 till altitude 5000’
15
Q
AIRAC is issued by DGCA
A
Aeronautical information regulation and control is issued by directorate general of civil aviation
16
Q
In RT cleared means _________
A
In RT cleared means authorised to proceed under condition specified
17
Q
In RT altitude, 10000’ is given as ________
A
In RT altitude, 10000’ is given as one zero thousand feet
18
Q
Visibility is ability to ______, ______, and ______,______
A
Visibility is ability to see, identify and distant, prominent
19
Q
VHF emergency frequency ______, ______, ______
A
VHF emergency frequency, 121.5 MHz, 123.1 MHz, 243 MHz
20
Q
In India, SAR LUT are at _____, _____ and MCC at _____
A
In India, SAR LUT are at Bangalore, Lucknow and MCC at Bangalore
21
Q
In RT message direction finding message have priority over _______and met message over _______
A
In RT message direction finding message have priority over flight safety message and met message over flight regulatory message
22
Q
XCVR has XMTR and REC
A
Transceiver has transmitter and receiver
23
Q
A/c clr for FSL WS in T/O Path
A
Aircraft cleared for full stop landing wind shear in takeoff path
24
Q
Co ords are given in lat and long , not in dist
A
Coordinates are given in latitude and longitude, not in distance
25
AD VEJT is clsd TFN
Aerodrome Jorhat is closed till further notice
26
LLZ is left of RCL
Localiser is left of runway centre line
27
WxR is showing CB
Weather radar is showing cumulonimbus
28
A/C to GA due GLD on final
Aircraft to go around due glider on final
29
Lsq APPCH AD from NNE
Line squall approaching Aerodrome from North North east
30
Mnt tfc for safety
Monitor traffic for safety
31
L/W should not be more than PCN
Landing weight should not be more than pavement classification number
32
A/C is Req Dev by 17 NM due LSQ
Aircraft is requesting deviation by 17 nautical miles due line squall
33
Hldg over NDB DP blw lvl 3500 not permitted
Holding over non-directional beacon DP below level altitude 3500 feet, not permitted
34
NC in RENL OPNS
No change in runway end light operations
35
Mntn ROD 600 till alt 5000
Maintain rate of descend 600 till altitude 5000 feet
36
AIRAC is issued by DGCA
Aeronautical information regulation and control is issued by directorate general of civil aviation
37
AIP published by ______ contains ______ information of a ______ character to ______
AIP published by AAI contains general information of a lasting character to air navigation
38
International NOTAMS are issued by ________ Office
International NOTAMS are issued by international NOTAM( NOF ) Office
39
Position report shall be made when _____ or as soon as possible, ______ compulsory reporting point
Position report shall be made when requested by ATC or as soon as possible, reaching compulsory reporting point
40
Operation information in routine air report contains ____ and ____
Operation information in routine air report contains ETA and end
41
Class A bearing is accurate within (plus -1, plus -2, plus-3) degree and psn accurate within 5Nm
Class A bearing is accurate within (plus -2) degree and psn accurate within 5Nm
42
(low, medium, high ) wake turbulence is MTOM of an Acft between 7000–13600KG
(medium) wake turbulence is MTOM of an Acft between 7000–13600KG
43
The word(medium, super, heavy) is to be included after the call sign on initial contact for A380
The word (super) is to be included after the call sign on initial contact for A380
44
In case of hijack or grave violence, which transponder mode to code (7500, 7600, 7700)
In case of hijack or grave violence, which transponder mode to code (7500)
45
During night, D layer disappears and electron density (increases / decreases)
During night, D layer disappears and electron density (decreases)
46
Heading
Direction in which longitudinal axis a aircraft is pointing
47
MAP
The procedure to be followed when approach cannot be continued due to any reason
48
Threshold
Beginning portion of runway usable for landing
49
Minimum descend altitude
Altitude below, which descend may not be made without visual reference in non-precision approach
50
Cruising level
The significant level flown during the flight
51
Use proper phrases
VT – HIP watch out for a glider flying near aerodrome.
VT – HIP exercise, caution, glider flying in vicinity of aerodrome
52
Use proper phrase
IT3321 runway surface is slippery, be careful
IT3321 runway surface wet exercise caution
53
Use proper phrases
Jodhpur VT – EDL, what are your operational hours?
Jodhpur VT-EDL request watch hours
54
Use proper phrase
Delhi VT – LOM. Yes, we are approved for RVSM.
Delhi VT – LOM affirm RVSM approved
55
Use proper phrase
Madurai VT – BNJ, we are established on VASIS
Visual approach slope indicator system
Madurai VT – BNJ maintain VASIS
56
ITU stands for _______ headquarter at _____
ITU stands for international telecommunication union headquarter at Geneva, Switzerland
57
ATC service are _____ a/C to a/C service is ____
ATC service are ground to air a/C to a/C service is air to air
58
Inter pilot frequency are ______
Inter pilot frequency are 123.45 MHz
59
In HF communication, we use ____ and _____
In HF communication, we use primary and secondary frequency
60
WPC holds exam for RTR (A) COP
Wireless planning and coordination wing holds exam for radio telephony restricted for aeromobile certificate of proficiency
61
Prkg is posl btn The two A/C
Parking is possible between two aircrafts
62
RENL are svcbl but Instst is low
Runway end lights are serviceable, but intensity is low
63
Mntn ROD 600 till alt 5000
Maintain rate of descend 600 till altitude 5000
64
AIRAC is an imp publication
Aeronautical Information regulations and control is an important publication
65
AWY
Airway
66
EXR
Exercise
67
CTN
Caution
68
Aerodrome reference point is designated ______ of an aerodrome
Aerodrome reference point is designated geometrical centre of an aerodrome
69
Position at which taxing a/C and vehicles shall stop until further cleared by ATC is ______ position
Position at which taxing a/C and vehicles shall stop until further cleared by ATC is hold short position
70
Runway used for operation of a/C after visual approach procedures is called ______ rwy
Runway used for operation of a/C after visual approach procedures is called non instrumental rwy
71
Aeronautical beacon used to designate a danger to air navigation is _______
Aeronautical beacon used to designate a danger to air navigation is hazard beacon
72
Device that indicate visually the direction of landing and takeoff is ________ indicator
Device that indicate visually the direction of landing and takeoff is landing direction indicator
73
In RT, standby means ____ and ______
In RT, standby means wait and I will call you
74
In RT control is suffix to ______
In RT control is suffix to area control centre
75
9W is ____ of ____ Airways
9W is IATA code of jet Airways
76
In AIP section of RAC relates to ____ and ____ service
In AIP section of RAC relates to air and air traffic service
77
Airway is a _____ in the form of a _____ having Nav aid
Airway is a controlled in the form of a corridore having Nav aid
78
In AIP section map relates to _____
In AIP section map relates to aeronautical chart publish
79
An instrument approach has ____ segment ____ segment ____ segment
An instrument approach has initial segment intermediate segment final segment
80
Rwy stripes comprises of _____, _____ of _____ aerodrome
Rwy stripes comprises of stopway, clearway of landing aerodrome
81
ATC service to aerodrome traffic is provided by _____
ATC service to aerodrome traffic is provided by aerodrome control tower
82
Annexure 10 volume two relates to _____
Annexure 10 volume two relates to communication procedure
83
Approach control service is provided by ______
Approach control service is provided by approach control office
84
Guwahati FIR is from _____ to _____
Guwahati FIR is from GL to FL265
85
NOTAM is _____ distributed by ____
NOTAM is notice to airmen distributed by respective NOF
86
PANS is _____
PANS is procedure for air navigation services
87
AFTN data is ____
AFTN data is forwarded and coded form to all en route ATC
88
DATIS info _____ Wx and other info about aerodrome
DATIS info is about Wx and other info about aerodrome
89
VTRES WS wrng at apch Path
VTRES wind shear warning at approach Path
90
AIP contains COM, RAC, FAL
Aeronautical information, publication contains communication, rules of air and air traffic control , facilitation
91
SAR being carried out by IAF RH
Search and rescue being carried out by Indian Air Force rescue helicopter
92
AI889 request SPOT and present SPD
AI889 request spot wind and speed
93
VHF frequency
118 MHz to 136 MHz
94
Frequency ?
NDB
ADF
NDB
NDB 190-1750 KHz
ADF 190-1750 KHz
NDB 190-450 KHz
95
Frequency ?
VOR
108-117.95 MHz
96
Frequency ?
ILS
Localiser 108- 112 MHz odd
Glide scope 328 - 335 MHz (UHF)
97
Frequency ?
Radio Altimeter
4200 MHz to 4400 MHz (SHF)
98
Frequency ?
SSR
Secondary Surveillance Radar
Interrogator signal (on ground) 1030 MHz
Transponder signal (Aircraft) 1090 MHz
99
Frequency ?
Airborne Wx Radar
9375 MHz
Or
10 MHz
100
Frequency ?
DME
Distance measuring equipment
962 MHz to 1213 MHz
UHF
Transponder on Ground
Interpreter aircraft
101
Frequency ?
GPS
L1 band 1575.42 MHz for civilians
L2 band 1227.6 MHz encrypted
102
If any other aircraft jams your signals
Make sure before transmitting frequency not occupied
103
Pax showing lack of oxygen
On txy B
Cancel dep, req taxi back to Apron
Due one Pax suffering from hypoxia
Req medical on arrival
104
An ATS route-
a. Connect one aerodrome to another
B. It’s a corridor to channelise flow of air traffic
C.it’s an airway along which aircraft flies
D. Both b& c
Choose correct option
Both b&c
105
UTC time signal can be obtained from ?
ATC
106
True / false
Frequency band 3- 300 MHz is VHF Band
False
107
True / false
Ground waves are the waves which travel along the surface of the earth
True
108
True / false
Frequency range 4 -8 GHz is known as L band
False
109
True / false
The height of Ionosphere apparently decreases during night
False
110
True / false
VOR stands for visual omni range
False
111
Morse code of SOS is
… - - - …
112
Controlled airspace at aerodrome is called _____
Controlled airspace at aerodrome is called
Controlled aerodrome
113
At airport we get the wind direction ____
At airport we get the wind direction wind shock
114
Area we park the aircraft is ____
Area we park the aircraft is Apron
115
Morse code of urgency
XXX
_ .. _ , _ .. _ , _ .. _
116
Runway light types are ____, ____, ____, ____, ____
Runway light types are REDL(edge light), RENL(end light), centre light, THR(threshold) light, APP(approach) light
117
AIRAP is given by the ____ at designated point or ___
AIRAP is given by the aircraft's automatic reporting system at a designated point or altitude
118
Your FIC no. Has expired. Obtain from appropriate authority
Company dispatch VT-OLK
Rev ETD 0700
Req FIC & ADC no.
119
Getting hot tyre indication
ATC Your call sign
On twy B
Getting hot tyre indication
Req FFS for visual inspection
120
ADF unsvcbl
Will carry out visual approach
121
Tail of your aircraft is on fire
Stopping slowly and switching off engines
Evacuating Pax thru emergency slide
Rush all assistance immediately POB 120
122
All station call:
When ATC not in CTC; RCF; Deviated from current route
All station All station in VCTS(vicinity)
Of IDASO VT-ABC on 121.5
Psn IDASO 1340 P761 FL370
Deviating 15NM right of ATC route due Wx ahead
Will maintain FL350 till 10 NM
Then will climb to FL353 and fly offset till clr of Wx
Rejoin @ BASOP FL350
Est
Est
Rev ETA
TEET
End
TAS
Req keep a lookout All extend light and TCAS ON
123
Experience RCF, descending to BHOPAL passing FL100 for FL70
BPL TWR AI898 on 122.5
Tx blind due Rex failure
Psn passing FL100 for FL70
On reaching will maintain FL70 till o/H Bhopal @ETA 1100
Then will establish in hold
At EAT 1100 will commence descent I’m hold over BPL for FL50
Then will carry out ILS approach Rwy 09
Will call again reaching FL70
(I say again) X2
124
Experience RCF, descending to BHOPAL passing FL100 for FL70
BPL TWR AI898 on 122.5
Tx blind due Rex failure
Psn passing FL100 for FL70
On reaching will maintain FL70 till o/H Bhopal @ETA 1100
Then will establish in hold
At EAT 1100 will commence descent I’m hold over BPL for FL50
Then will carry out ILS approach Rwy 09
Will call again reaching FL70
(I say again) X2
125
Air prox
AAE ACC VT ABC Boeing IMC
Air prox - Risk of collision/Air prox - Safety not assured
TOI 1040
Monitored an aircraft @15NM crossed @FL350 from left to right
Psn O/H PRA 1045 A474 FL350
TAS 400 KTs
126
Wind Shear- sudden change in wind speed and direction
Delhi TWR VT-ABC
WS Report
Time of Occurence 1030
Intensity Moderate
Level of occurrence
1. T/o path Rwy 09 @1000’
Deviating 15 degree right
2. On finals Rwy 09 @1000’
2 miles, landing is difficult, initiating Go around
127
Microburst intense down drought
Delhi Tower VTABC
experienced MB
Strong down, drought, heavy rain, thunderstorm, lightning
Lost height, 500 feet
Visibility reduced 50 m
On takeoff approach, path of runway 09
At 2 miles altitude, 1500 feet
Deviating 15° right to avoid microburst/
landing is difficult initiating, go around
128
You are 50DME to Udaipur at your filed flight plan, seek necessary permission
Udaipur tower VT ABC
Position 50DME to Udaipur
radial 330 UUD 1100 FL130
Will join W13S @UUD FL140
Estimate UUD1100
Estimate AAE 1100
ETA BBB 1200
TAS 300 KTs
Request joining route clearance
129
Crossing
Nagpur ACC AI89 on 123.9
Position overhead, DUBOX 1100 FL230
Will cross G472 @ FL230
Estimated crossing G472 1110
ETA BPL 1130
TAS 400KTS
Request crossing route clearance
130
Transit clearance
Khajuraho Tower AI898 on 122.3
Position 50 DME to KKJ 1100 W66 FL140
Will transit through your airspace @ FL 140
estimated entering KKJ CTR boundary 1110
estimated KKJ 115
Estimated exiting KKJ CTR boundary 1120
Estimated IGONA 1130
ETA LKN 1150
TAS 300KTS
Request transit clearance
131
Entering Indian airspace clearance
Delhi ACC AI889 on 124.5
Position 50 DME to TIGER 1050 G452 FL350
Will enter Indian airspace at FL350
Estimated TIGER 1100
Estimated LKA 1110
ETA DPN 1200
TAS 400KTS
FIC number A123
ADC number B410
Authority number YA123
Request entering Indian airspace clearance
132
Aerodrome where ATC service is provided to Aerodrome Traffic is called_____
Aerodrome where ATC service is provided to Aerodrome Traffic is called
Controlled Aerodrome.
133
Morse Code … - - -… stands for____and is___signal.
Morse Code … - - -…
stands for SOS and is Distress signal.
134
A designated area on an apron used for parking a/c is called ____
A designated area on an apron used for parking a/c is called Aircraft Stand.
135
Aeronautical ground light, visible all around, to designate a point is called _____
Aeronautical ground light, visible all around, to designate a point is called
Aeronautical Beacon.
136
Device that gives visual indication of wind direction and approximate speed on aerodrome is _____
Device that gives visual indication of wind direction and approximate speed on aerodrome is Wind Shock.
137
Broadcast is a transmission addressed to ____ station or_____
Broadcast is a transmission addressed to Specific station or Stations.
138
In duplex_____takes place between two stations_____
In duplex Telecommunication takes place between two stations Simultaneously.
139
Location Indicator relates to location of an ____, _____, ______
Location Indicator relates to location of an Aeronautical Fixed Stations.
140
In UTC system midnight is represented as _____and beginning of day as_____
In UTC system midnight is represented as 2400 and beginning of day as 0000.
141
Aircraft in_____shall maintain watch except for the reason of_____
Aircraft in Flight shall maintain watch except for the reason of Safety.
142
In case of SELCAL of an aircraft fails it should____,_____,_____,_____,_____
In case of SELCAL of an aircraft fails it should Maintain Listening Watch all the Time.
143
Radiotelephony distress signal should be spoken_____three times.
Radiotelephony distress signal should be spoken Preferably three times.
144
VOLMET
Volume Meteorological Information for Aircraft in Flight
145
TORA
Take off run available
146
RVSM
Reduced vertical separation minima
147
CFL
Cruising flight level
148
ATS
Air Traffic Services
149
UTC
Co-ordinated Universal Time
150
METAR
Meteorological Aviation Routine Report
151
NOTAM
Notice to Airman
152
PRESFR
Pressure falling rapidly
153
ICAO
International Civil Aviation Organisation
154
Portion of runway after threshold for aircraft touchdown is ______
Portion of runway after threshold for aircraft touchdown is Touchdown Zone.
155
Runway intended for Takeoff only is ______
Runway intended for Takeoff only is Takeoff Runway.
156
Taxiway including its adjoining prepared area is called _____
Taxiway including its adjoining prepared area is called Taxiway Strip.
157
Communication between aircraft and ATC is _____ communication method.
Communication between aircraft and ATC is Air to Ground communication method.
158
To home on to a facility, one of the station should be _____ to the _____ station.
To home on to a facility, one of the station should be Continuosly Monitoring to
the Other station.
159
Angle between a radio beam from an aircraft and reference beam of Direction Finding
station to true North is _____ _____ _____
Angle between a radio beam from an aircraft and reference beam of Direction Finding
station to true North is True Radio Bearing.
160
Pilots when out of range of VHF can communicate with each other on Inter pilot _____
channel.
Pilots when out of range of VHF can communicate with each other on
Inter pilot Air to Air channel.
161
Primary frequency is assigned to an aircraft as first choice for _____ communication
in _____ _____ _____
Primary frequency is assigned to an aircraft as first choice for Air to Ground
communication in Radio Telephony Network.
162
ITU Headquarters are at _____ and ITU stands for _____ _____ _____
ITU Headquarters are at Geneva in Switzerland and ITU stands
for International Telecommunication Union.
163
SARPS stands for _____ _____ _____ _____
SARPS stands for Standard And Recommended Practices.
164
ITU headquarters is located in _____ and its full form is _____ _____ _____
ITU headquarters is located in Geneva in Switzerland and its full form
is International Telecommunication Union.
165
Urgent call to be transmitted as _____ and Medical distress as _____
Urgent call to be transmitted as PAN-PAN and Medical distress as MEDICAL.
166
Before RT call check, make sure _____ _____ _____ and _____ _____ _____
Before RT call check, make sure Frequency is not Occupied
and Tuned to Correct Frequency.
167
_____ is issued when weather at station changes _____
SPECI is issued when weather at station changes Significantly.
168
EET
Estimated Elapsed Time
169
EAT
Estimated Approach Time
170
QFE
‘Q’ Code for Field Elevation
171
QNE
Standard Atmospheric Setting 29.92 inch of mercury or 1013.25 hectopascal
Q code for Nautical elevation or HEIGHT or pressure at aerodrome
172
Simultaneous T/o from Parl Rwys is Pos
Simultaneous Takeoff from Parellel Runways is Possible.
173
Obst must be Lgtd in & around AD
Obstacle must be Lighted in and around Aerodrome.
174
RNN aft xng tfc on Rte
Resume Normal Navigation after crossing Traffic on Route.
175
Cfm LH PTN Cmpl
Confirm Left hand Procedure turn complete.
176
In Ady airspace Adz is provided
In Advisory airspace Advice is provided.
177
Minimum Lateral Separation between 2 aircrafts from NDB is _____ degrees at _____ KM.
Minimum Lateral Separation between 2 aircrafts from NDB is 30 degrees
at 28 KM.
178
Height is _____ distance measured from a _____ level.
Height is Vertical distance measured from a Specified level.
179
VFR flight cannot be operated when Cloud Ceiling is below _____ feet
above _____ or _____
VFR flight cannot be operated when Cloud Ceiling is below 1500 feet
above Ground or Water.
180
Flight Plan filed with ATS is known as _____ Flight Plan.
Flight Plan filed with ATS is known as Filed Flight Plan.
181
In Weather report, Cloud amount ‘SCT’ means _____ to _____ OKTAS.
In Weather report, Cloud amount ‘SCT’ means 3 to 4 OKTAS.
182
Cfrm RTE R460 is an AWY
Confirm Route R460 is an Airway.
183
Exer Ctn bfr x-ing Tax Charlie
Exercise Caution before crossing Taxiway Charlie.
184
Cld Hgt is Abv 1000 ft Wx Dtrt
Cloud Height is above 1000 feet Weather Deteriorating
185
ATD not Rec Fm Dep AD
Actual Time of Departure not Received from Departure Aerodrome.
186
CAT at lower Lvl Exer Ctn
Clear Air Turbulence at lower Level Exercise Caution.
187
NDB
Non Directional Beacon
188
AFTS
Aeronautical Fixed Telecommunication Service
189
FIR
Flight Information Region
190
WILCO
Will Comply
191
RDARA
Regional Domestic Air Route Area
192
CPDLC
Controller Pilot Data Link Communication
193
GNSS
Global Navigation Satellite System
194
PANS
Procedure for Air Navigation Services
195
TAS
True Air Speed
196
ADF uses a loop aerial to determine the direction and a sense aerial to resolve
180 degrees ambiguity.
True
197
Frequency band used for NDB in India is 200 to 400 KHz.
False, 190 to 450 Khz.
198
In secondary radar, radio signal retransmitted from the position to be determined.
True
199
Middle Marker transmits 2 dashes per second tone which is audio modulated on 400 Hz.
False, Outer Marker.
200
DME is working on the principle of primary radar.
False, Secondary Radar.
201
QDR means Magnetic bearing of the aircraft from the station.
TRUE
202
VOR transmits two signals at the same time, one signal in all directions, while the other
is rotated about the station.
True
203
Frequency range 8 to 12 GHz is known as ‘S’ band.
False, ‘X’ band.
204
The height of ionosphere apparently decreases during night.
False, Increases.
205
ACAS III uses mode ‘S’ to give horizontal advisories also.
True.
206
Location indicator for Jaipur is VEJP.
False, VIJP.
207
ICAO code for Indigo airlines is 6E.
False, IGO.
208
For above flight, SELCAL facility is not available.
True.
209
QRM is interference due to equipment or man interference.
True.
210
Area marked East of Songarh is Prohibited area.
False, Restricted.
211
In case of emergency, make the initial call on the frequency in use, but if that is not
possible Squawk 7600 and Call on 121.5.
False, Squawk 7700.
212
If automatic altitude keeping device fails, pilot will use NEG RVSM.
False, Unable RVSM.
213
Operating frequency band for VHF communication is 118 to 136 MHz and voice is
modulated using frequency modulation.
False, Amplitude Modulation.
214
In radio wave propagation, the Direction and Velocity both changes while passing from
one medium to other.
TRUE
215
Static disturbance, larger antenna size and high transmission power are the drawbacks of
lower frequency.
TRUE
216
A/C
Aircraft
217
A/D
Aerodrome
218
AAI
Airport Authority of India
219
ABM
Abeam
220
ACAS
Airborne Collision Avoidance System
221
ACARS
Aircraft Communication Addressing and Reporting System
222
ACC
Area Control Centre
223
ADC
Air Defence Clearance
224
ADF
Automatic Direction Finder
225
ADIZ
Air Defence Identification Zone
226
ADS
Automatic Dependent Surveillance
227
AFSRA
Aeronautical Fixed Service Routing Area
228
AFTN
Aeronautical Fixed Telecommunication Network
229
AIC
Aeronautical Information Circular
230
AIP
Aeronautical Information Publication
231
AIRAC
Aeronautical Information Regulation and Control
232
AIREP
Air Report
233
AIRMET
Airmen Meteorological Report
234
AIRPROX
Air Proximity Report
235
ALERFA
Alert Phase
236
ALS
Approach Lighting System
237
AMHS
Air Traffic Services Message Handling System
238
ATA
Actual Time of Arrival
239
ATD
Actual Time of Departure
240
ATIS
Automatic Terminal Information Service
241
ATM
Air Traffic Management
242
ATS
Air Traffic Services
243
BCN
Beacon
244
BFO
Beat Frequency Oscillator
245
CANPA
Constant Angle Non Precision Approach
246
CAT
Clear Air Turbulence
247
CAVOK
Cloud and Visibility Okay
248
CDFA
Continuos Descend Final Approach
249
CFL
Cruising Flight Level
250
CIDIN
Common Int’l Civil Aviation Organisation Data Interchange Network
251
COM BRFG
Communication Briefing
252
CPDLC
Controller Pilot Data Link Communication
253
CTA
Control Area
254
CTR
Control Zone
255
CVR
Cockpit Voice Recorder
256
CVOR
Conventional Very High Frequency Omnidirectional Radio Ranging
257
CVSM
Conventional Vertical Separation Minima
258
DA
Decision Altitude
259
DATIS
Datalink Automated Terminal Information Service
260
DDA
Derived Decision Altitude
261
DETRESFA
Distress Phase
262
DME
Distance Measuring Equipment
263
DOC
Designated Operational Coverage
264
DR
Dead Reckoning
265
DSB
Double Side Band
266
DVOR
Doppler Very High Frequency Omnidirectional Radio Ranging
267
EAT
Estimated Approach Time
268
EET
Estimated Elapsed Time
269
EFIS
Electronic Flight Instrumentation System
270
EGPWS
Enhanced Ground Proximity Warning System
271
EGNOS
European Geostationary Navigation Overlay System
272
ELBA
Emergency Locator Beacon Aircraft
273
ELT
Emergency Locator Transmittor
274
EOBT
Estimated Off Block Time
275
EQPT
Equipment
