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APPENDIX
D
MESSAGES &
ABBREVIATIONS
SEQ-
Sequence
SGL-
Signal
SID-
Standard Instrument
Departure
SLCT-
Select
SRFC-
Surface
STAR-
Standard Terminal Arrival
Route
STR-
Steer To
TACAN-
TACtical Area Navigational
Aid
TAS-
True Airspeed
TAT
-
Total Air Temperature
TEMP-
Temperature
TMA-
ICAO Terminal Control Area
TRK-
Track Angle
TRN-
Transition
TRN-
Turn Angle
TRSA-
Terminal Radar Service Area
TWR-
Tower
TX-
Transmit Only
U-
UTC Time
UNI-
Unicom
URA-
User Range Accuracy
USER-
User Waypoint
USR-
User Waypoint
UTC-
Universal Time Coordinated
(GMT/ Zulu)
VN-
VNAV or Vertical Navigation
VNAV-
Vertical Navigation
VOR-
VOR Waypoint
WPT-
Waypoint
WX-
Weather
155xlb manual 1/12/99 4:06 PM Page 120