Abbreviation

PAPA – Parallax Aircraft Parking Aid.
AGNIS – Azimuth Guidance Nose In Stand.
VASI – Visual Approach Slope Indicator
SAVASI – Simplified Abbreviated Visual Approach Slope Indicator.
PLASI – Pulsating Approach Slope Indicator.
PAPI – Precision Approach Path Indicator.
TAWS – Terrain Avoidance and Warning System
LTOM – LOWER TAKE OFF MINIMA
FATO1 – FINAL APPROACH AND TAKE OFF AREA
Tricolor VASI –

is a light projector that shows three colors, Amber, Green and Red.

ICTS – Ice Contaminated Tail plane Stall
Dingy Radio – is an ELT that activates on Water
PANS – Procedure For Air Navigation Services.
OPS – Operations
SIRO – Simultaneous intersecting Runway operations.
LAHSO – Land and Hold Short Operations.
NORDO – No Radio.
HIWAS –

Hazardous In flight Weather Advisory Service- is a continuous broadcast of Hazardous Weather Information.

TWEB –

Transcribed Weather Broadcast- is a continuous broadcast of recorded Meteorological & Aeronautical information on Low frequency and Medium Frequency & is sometimes transmitted on VOR facilities for Pilots

SAT – Static Air Temperature
Np – Propeller RPM
Nh – Gas Generator RPM
RTOW –

Regulated Take-off Weight-is the Weight calculated for Take off on a particular Runway for varying atmospheric existing conditions, using Flight Manual data or given in specially prepared RTOW charts by the Airline for each specific Runway operations.

ULR –

Ultra Long Range- is the range of a flight which requires more than 16 hours of flight time.

ROBEX – Regional Operating Meteorological Bulletin Exchange