1. A ABT ABV AFL AG AGL AMSL ASL ACLT ACLTD ACLTG ACLTN ACPT ACPTD ACPTG ACPYD ACPYG ACPY ACRD ACRDG ACRDGLY ACRS ACT ACTLY ADDN ADJ ADJS ADVN ADVND ADVNG ADVCTN ADVNMT ADZ ADZD ADZG ADZRY AD TAF TAF ADS METAR SPECI AFCT AFCTD

A ATTM FALG LGRG ORIGLY UNLS ABT APPRD FYI ACRS THRU ACLTG ACLTN ACLTD ACLT ACPTG AGRG AGRD ACPTD ACPT ACPYG ACPYD ACPY ACRD AGRMT ACT ACTLY ADDN ADJ ADJS ADVCTN WAA CAA NVA PVA AD ADS TRML TRMLS ACFT ARPT ALTN ALTNS AFCTG EFCTG