Appendix 10: Abbreviations and Acronyms

The following abbreviations and acronyms are used in the ACS.

Abb./Acronym	Definition
14 CFR	Title 14 of the Code of Federal Regulations
AATD	Advanced Aviation Training Device
AC	Advisory Circular
ACS	Airman Certification Standards
AD	Airworthiness Directive
ADM	Aeronautical Decision-Making
AELS	Aviation English Language Standard
AFM	Airplane Flight Manual
AFS	Flight Standards Service
AGL	Above Ground Level
AIM	Aeronautical Information Manual
AKTR	Airman Knowledge Test Report
AMEL	Airplane Multiengine Land
AMES	Airplane Multiengine Sea
APD	Aircrew Program Designee
ASEL	Airplane Single-Engine Land
ASES	Airplane Single-Engine Sea
ASI	Aviation Safety Inspector
ATC	Air Traffic Control
ATD	Aviation Training Device
BATD	Basic Aviation Training Device
CFIT	Controlled Flight Into Terrain
CFR	Code of Federal Regulations
CG	Center of Gravity
CRM	Crew Resource Management
DA	Decision Altitude
DH	Decision Height
DPE	Designated Pilot Examiner
ELT	Emergency Locator Transmitter
ETA	Estimated Time of Arrival
FAA	Federal Aviation Administration
FFS	Full Flight Simulator
FMS	Flight Management System
FSDO	Flight Standards District Office
FSTD	Flight Simulation Training Device
FTD	Flight Training Device
ICAO	International Civil Aviation Organization
IFO	International Field Office
IFP	Instrument Flight Procedures
IFU	International Field Unit
IPC	Instrument Proficiency Check
LAHSO	Land and Hold Short Operations
LOA	Letter of Authorization
LSC	Learning Statement Codes
MDA	Minimum Descent Altitude
MEL	Minimum Equipment List
NAS	National Airspace System
NOTAMs	Notices to Airmen
NSP	National Simulator Program
NTSB	National Transportation Safety Board
PA	Private Airplane
PAR	Private Pilot Airplane
PAT	Private Pilot Airplane/Recreational Pilot – Transition
PCP	Private Pilot Canadian Conversion
PIC	Pilot-in-Command
POA	Plan of Action
POH	Pilot’s Operating Handbook
PTS	Practical Test Standards
QPS	Qualification Performance Standard
SATR	Special Air Traffic Rules
SFRA	Special Flight Rules Area
SMS	Safety Management System
SOP	Standard Operating Procedures
SRM	Single-Pilot Resource Management
SUA	Special Use Airspace
TCE	Training Center Evaluator
TFR	Temporary Flight Restrictions
UTC	Coordinated Universal Time
VA	Maneuvering speed
VFR	Visual Flight Rules
VMC	Visual Meteorological Conditions
VMC	Minimum Control Speed with the Critical Engine Inoperative
VS	Stall Speed
VX	Best Angle of Climb Speed
VY	Best Rate of Climb Speed
VSSE	Safe, intentional one-engine-inoperative speed. Originally known as safe single-engine speed
VXSE	Best angle of climb speed with one engine inoperative
VYSE	Best rate of climb speed with one engine inoperative
VSO	Stalling Speed or the Minimum Steady Flight Speed in the Landing Configuration