aviation acronyms and abbreviations > A

A: Discounted First booking class 
A&GS: Armament & Gunnery School 
A&IEU: Armament & Instrument Experimental Unit 
A&L: Approach and Landing 
A&P: Airframes and Powerplant 
A-S: Anti-Spoofing 
A-SMGCS: advanced surface movement guidance and control system 
A.C.R.C: Aircrew Receiving Centre 
A.N.D.: Aircraft Nose Down 
A.N.U.: Aircraft Nose Up 
A/BRK: Auto brake 
A/C: Air Conditioning 
A/C: Aircraft 
A/Cdre: Air Commodore 
A/D: Analog to Digital 
A/D: analog/digital 
A/F: Auto Flight 
A/G: Air/Ground 
A/J: Anti-Jamming 
A/N: Alphabetical/Numerical 
A/P: Auto-Pilot 
A/R: Approved/Repairs 
A/R: Audio Reproducer 
A/S: Airspeed 
A/S: antisubmarine 
A/S: Auto Stabilization 
A/SKID: Anti Skid 
A/T: Adjustment/Test 
A/T: Auto Throttle 
A/T: Auto-Throttle 
A/THR: Auto Throttle 
A/THR: Auto Thrust 
A/THR: Auto Thrust Function 
A/V: Auto-Visual 
a/w: All white 
AA: Air Attache 
AA: Airplane Avionics 
AA: air-to-air 
AA: Airworthiness Authorities 
AA: American Airlines