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Air Traffic and VOLMET Services Q-Code Combinations |
|
SA
AUTOMATIC TERMINAL INFORMATION SERVICE (ATIS)
|
AH
HOURS OF SERVICE ARE |
AS
UNSERVICEABLE |
AU
NOT AVAILABLE |
AW
COMPLETELY WITHDRAWN |
CF
FREQUENCY CHANGED TO |
CS
INSTALLED |
TT
HAZARD |
XX
|
|
SB
ATS REPORT OFFICE
|
AH
HOURS OF SERVICE ARE |
AW
COMPLETELY WITHDRAWN |
CS
INSTALLED |
LC
CLOSED |
LT
LIMITED TO |
TT
HAZARD |
XX
|
|
SC
AREA CONTROL CENTER
|
AH
HOURS OF SERVICE ARE |
CF
FREQUENCY CHANGED TO |
CI
IDENTIFICATION OR RADIO CALL SIGN CHANGED TO |
CS
INSTALLED |
LC
CLOSED |
LT
LIMITED TO |
TT
HAZARD |
XX
|
|
SE
FLIGHT INFORMATION SERVICE
|
AH
HOURS OF SERVICE ARE |
AR
AVAILABLE, PRIOR PERMISSION REQUIRED |
AU
NOT AVAILABLE |
AW
COMPLETELY WITHDRAWN |
CF
FREQUENCY CHANGED TO |
CI
IDENTIFICATION OR RADIO CALL SIGN CHANGED TO |
CS
INSTALLED |
LC
CLOSED |
LT
LIMITED TO |
XX
|
|
SF
AERODROME FLIGHT INFORMATION SERVICE (AFIS)
|
AH
HOURS OF SERVICE ARE |
AR
AVAILABLE, PRIOR PERMISSION REQUIRED |
AU
NOT AVAILABLE |
AW
COMPLETELY WITHDRAWN |
CF
FREQUENCY CHANGED TO |
CI
IDENTIFICATION OR RADIO CALL SIGN CHANGED TO |
CS
INSTALLED |
LT
LIMITED TO |
TT
HAZARD |
XX
|
|
SL
FLOW CONTROL CENTER
|
AH
HOURS OF SERVICE ARE |
CS
INSTALLED |
LC
CLOSED |
LT
LIMITED TO |
TT
HAZARD |
XX
|
|
SO
OCEANIC AREA CONTROL CENTER
|
AH
HOURS OF SERVICE ARE |
CF
FREQUENCY CHANGED TO |
CI
IDENTIFICATION OR RADIO CALL SIGN CHANGED TO |
CS
INSTALLED |
LC
CLOSED |
LT
LIMITED TO |
TT
HAZARD |
XX
|
|
SP
APPROACH CONTROL
|
AH
HOURS OF SERVICE ARE |
CF
FREQUENCY CHANGED TO |
CI
IDENTIFICATION OR RADIO CALL SIGN CHANGED TO |
CS
INSTALLED |
LC
CLOSED |
LT
LIMITED TO |
TT
HAZARD |
XX
|
|
SS
FLIGHT SERVICE STATION
|
AH
HOURS OF SERVICE ARE |
AR
AVAILABLE, PRIOR PERMISSION REQUIRED |
AW
COMPLETELY WITHDRAWN |
CF
FREQUENCY CHANGED TO |
CI
IDENTIFICATION OR RADIO CALL SIGN CHANGED TO |
CS
INSTALLED |
LC
CLOSED |
LT
LIMITED TO |
TT
HAZARD |
XX
|
|
ST
AERODROME CONTROL TOWER
|
AH
HOURS OF SERVICE ARE |
AS
UNSERVICEABLE |
CF
FREQUENCY CHANGED TO |
CI
IDENTIFICATION OR RADIO CALL SIGN CHANGED TO |
CS
INSTALLED |
LC
CLOSED |
LT
LIMITED TO |
TT
HAZARD |
XX
|
|
SU
UPPER AREA CONTROL CENTER
|
AH
HOURS OF SERVICE ARE |
CF
FREQUENCY CHANGED TO |
CI
IDENTIFICATION OR RADIO CALL SIGN CHANGED TO |
CS
INSTALLED |
LC
CLOSED |
LT
LIMITED TO |
TT
HAZARD |
XX
|
|
SV
VOLMENT BROADCAST
|
AH
HOURS OF SERVICE ARE |
AS
UNSERVICEABLE |
AW
COMPLETELY WITHDRAWN |
CF
FREQUENCY CHANGED TO |
CI
IDENTIFICATION OR RADIO CALL SIGN CHANGED TO |
CS
INSTALLED |
LF
INTERFERENCE FROM |
LS
SUBJECT TO INTERRUPTION |
LT
LIMITED TO |
XX
|
|
SY
UPPER ADVISORY SERVICE
|
AH
HOURS OF SERVICE ARE |
AU
NOT AVAILABLE |
AW
COMPLETELY WITHDRAWN |
CF
FREQUENCY CHANGED TO |
CI
IDENTIFICATION OR RADIO CALL SIGN CHANGED TO |
CS
INSTALLED |
LT
LIMITED TO |
XX
|
|