FlyerTalk Forums - View Single Post - All the known internal codes for mainline aircraft
Old Apr 24, 2013, 8:13 am
  #2  
LondonAndy
 
Join Date: Mar 2009
Location: London
Programs: BA CCR/GGL, Hilton Diamond
Posts: 3,483
I Googled it and "M9A" is "Airbus A319 – Former BMI Airframe (G-DBC*)".

It came from this intriguing site!
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