Acronym Wiki
 

By popular demand, we'll use this thread as an Acronym/Terminology Wiki. To keep the thread length manageable, we'll try to use one post for each letter.

The thread will be closed so it doesn't get too long, but any Moderator can edit/update the entries on request. Just send one of us a PM with questions or updates.

Intent is to list airline/aviation industry acronyms, not company-specific acronyms in most cases.

We won't list extensive explanations, that's what google is for.

Enjoy!

A
 

A14: On-time Arrival (< 15 minutes late)
AA: American Airlines
ACARS: Aircraft Communications and Reporting System
ALPA: AirLine Pilots Association
AOA: Angle of Attack
AP: Autopilot
AQP: Advanced Qualification Program
AS: Alaska Airlines
ATB: Air Turn Back
ATP: Airline Transport Pilot (Certificate)
AX: Trans States Airlines

B
 

B6: Jet Blue

C
 

C5: Commutair Airlines
CA: Captain
CASM: Cost per Available Seat Mile
CAVU: Clear and Visibility Unlimited (aka Severe Clear)
CDO: Continuous Duty Overnight (aka High Speed, Standup)
CFI: Certificated Flight Instructor
CFI-A:Certificated Flight Instructor (Airplane)
CFII Certificated Flight Instructor (Instrument)
CJO: Conditional Job Offer
COL: Cost of Living
COLA: Cost of Living Allowance
CZ: Compass Airlines

D
 

D0: On-time Departure
DEC: Direct Entry Captain
DL: Delta Airlines

E
 

ELT: Emergency Locator Transmitter
ETOPS: Extended Operations (formerly Extended-range Twin-engine Operational Performance Standards)
EV: Expressjet Airlines

F
 

F9: Frontier Airlines
FA: Flight Attendant
FAM: Federal Air Marshal
FD: Flight Director
FE: Flight Engineer
FFDO: Federal Flight Deck Officer
Flow: Automatic progression from a wholly-owned regional to the major
FO: First Officer

G
 

G4: Allegiant Airlines
G7: Gojet Airlines
GA: Go-Around (also General Aviation)

H
 

HA: Hawaiian Airlines
HUD: Heads Up Display

I
 

INS: Inertial Navigation System