2/12 "Picardy making its appearance it May 1, 1954, it is seen allotting 2 escadrilles June 5 of the same year, the spa 173 and the spa 172. It is only in September 1996 that the 2/12 while becoming autonomous, takes again the spa 90, it obtains its 3rd flotilla thus.

The spa 173 was created in October 1918 and dissolved on April 09 1919.Elle was thus again present at the creation of the 2/12 in 1954.

The spa 173 A for badge a blue bird said bird of paradie.