Document ID: chunk:federal_register_of_legislation:F2018C00889:front:0:p2
Version: federal_register_of_legislation:F2018C00889
Segment Type: other
Provision Reference: 
Character Range: 2982–7089

(E)TSO       FAA Technical Standard Order and/or European Technical Standard Order
ETSO         European Technical Standard Order
FAF          Final Approach Fix
FAP          Final Approach Point
FAS          Final Approach Segment
FD           Fault Detection or Flight Director
FDE          Fault Detection and Exclusion
FM           Path Terminator: Course from Fix to Manual Termination
FMC          Flight Management Computer
FMS          Flight Management System
FOSA         Flight Operational Safety Assessment
FRT          Fixed Radius Transition
FTE          Flight Technical Error
GBAS         Ground-based Augmentation System
GNSS/FMS     An FMS area navigation system that has GNSS capability but does not have IRU or IRS inputs
HPL          Horizontal Protection Limit
HSI          Horizontal Situation Indicator
IAF          Initial Approach Fix
IF           Path Terminator: Initial Fix
INS          Inertial Navigation System
IRS          Inertial Reference System
IRU          Inertial Reference Unit
JAA          Joint Aviation Authorities
LNAV         Lateral Navigation
LNAV/VNAV    Lateral Navigation with Vertical Navigation
LOA          Letter of Acceptance or Letter of Authorisation
LOC          ILS Localizer
LP           Localiser Performance
LPV          Localiser Performance with Vertical Guidance
LRNS         Long-range Navigation System
MAP          Map Display
MMR          Multi-mode Receiver
MNPS         Minimum Navigation Performance Specifications
NM           nautical mile
NNDP         Non-normal Decision Point
NPA          Non-precision Approach
NPS          Navigation Performance Scales
NSE          Navigation System Error
OEI          One Engine Inoperative
OEM          Original Equipment Manufacturer
PBN          Performance-based Navigation
PF           Pilot flying
PNF/PM       Pilot not flying/pilot monitoring
P-RNAV       Precision Area Navigation
QRH          Quick Reference Handbook
RADALT       Radio Altimeter.
RAIM         Receiver Autonomous Integrity Monitor
RF Leg       Path Terminator: Radius to Fix Path Terminator
RNAV         Area Navigation
RNP          Required Navigation Performance
RNP APCH     RNP Approach
RNP AR APCH  RNP AR Approach
RNP AR DEP   RNP AR Departure
RTCA         Radio Technical Commission for Aeronautics
SBAS         Space-based Augmentation System
SIS          Signal-in-space
TSE          Total System Error
VDEV         Vertical Deviation
VI           Path Terminator: Heading Vector to Intercept
VIP          Vertical Intercept Point
VNAV         Vertical Navigation
VPA          Vertical Path Angle
VSD          Vertical Situation Display
XTK          Cross-track Error/Deviation

       4.2Terms defined for this Order:
Term                                   Definition (meaning)
AIRAC cycle                            The Aeronautical Information Regulation and Control cycle.

                                       Note   In accordance with Annex 15, Aeronautical Information Services (AIS), of the Chicago Convention, the AIRAC cycle documents and defines a series of common dates, and an associated standard aeronautical information publication procedure, for each Convention State.
Airspace                               An area, route or procedure (the designated environment) in respect of which all or any of the following requirements must be satisfied, before an aircraft to which this Order applies is able to use it:
                                          (a)     navigation specifications (RNAV or RNP) applicable in the designated environment, for which the aircraft must hold an authorisation or approval;
                                          (b)     aircraft navigation equipment requirements that the aircraft must satisfy;
                                          (c)     aircraft navigation system functional and performance requirements that the aircraft must satisfy;
                                          (d)     aircraft navigation equipment installation requirements that the aircraft must satisfy.
Alternate Means of Navigation          The use of information from