ERP Eye Reference Point
ERSDS En Route Software and Development Support
ERU Engine Relay Unit
ESA European Space Agency
ESAS (1) Enhanced Situational Awareness System
(2) Electronic Situation Awareness System
E-Scan Electronic Scanning
ESD Electrostatic Discharge
ESDS Electrostatic Sensitive Devices. Also known as ESSD.
ESID Engine and System Indication Display
ESIS Engine and System Indication System
ESR Energy Storage/Control
ESS (1) Electronic Switching System
(2) Environmental Stress Screening
ESSD Electro Static Sensitive Devices (see ESDS)
ETA Estimated Time of Arrival
ETD Estimated Time of Departure
ETI Elapsed Time Indicator
ETM Elapsed Time Measurement
ETMS Enhanced Traffic Management System
ETOP Extended Twin Engine Operations
ETRC Expected Taxi Ramp Clearances
ETX End-of-transmission
EUR European
Eurocae European Organization for Civil Aviation Electronics.
A regulatory agency for avionics certification in
Europe.
EURO- European Organization for the Safety of Air Navigation
CONTROL Operations
EVS Enhanced Vision Systems
F
FAA (1) Federal Aviation Administration (U.S.)
(2) Federal Aviation Authority
FAC Flight Augmentation Computer
FADEC Full Authority Digital Electronic Control
FAF Final Approach Fix
FAI First Article Inspection
FAATC FAA Technical Center
FADE FAA-Airline Data Exchange
FADEC Full Authority Digital Electronic Control
FANS Future Air Navigation System
Fan Marker A marker beacon used to provide identification of
positions along airways. Standard fan marker pro-
duces an elliptical-shaped pattern. A second type pro-
duces a dumbbell-shaped pattern.
FAR Federal Aviation Regulation
FAST Final Approach Spacing Tool
FBL Fly By Light
FBW Fly By Wire
FCAF Flight Data Acquisition
FCC (1) Federal Communications Commission
(2) Flight Control Computer
FCDC Flight Critical dc
FCP Flight Control Panel
FD (1) Flight Director
(2) Final Data
FDAF Flight Data Acquisition Function
FDAU Flight Data Acquisition Unit
FDB Flight Plan Data Bank
| 
