▁is ▁also ▁still ▁in ▁production . ▁ ▁Development ▁ ▁Orig ins ▁ ▁During ▁the ▁mid - 1 9 8 0 s , ▁A TR ▁sought ▁to ▁introduce ▁a ▁larger ▁air lin er ▁with ▁capacity . ▁This ▁new ▁regional ▁air lin er , ▁designated ▁as ▁the ▁A TR ▁ 7 2 , ▁was ▁directly ▁developed ▁from ▁the ▁earlier ▁A TR ▁ 4 2 ▁and ▁continued ▁to ▁share ▁many ▁common al ities ▁with ▁it ; ▁the ▁principal ▁difference ▁between ▁the ▁two ▁air lin ers ▁was ▁an ▁increase ▁in ▁the ▁maximum ▁se ating ▁capacity ▁from ▁ 4 8 ▁to ▁ 7 8 ▁passengers . ▁This ▁was ▁princip ally ▁achieved ▁by ▁stretch ing ▁the ▁fus el age ▁by ▁, ▁along ▁with ▁an ▁increase ▁of ▁the ▁wings pan , ▁the ▁use ▁of ▁more ▁powerful ▁engines , ▁and ▁increased ▁fuel ▁capacity ▁by ▁about ▁ 1 0 %. ▁ ▁On ▁ 1 5 ▁January ▁ 1 9 8 6 , ▁the ▁launch ▁of ▁the ▁stretch ed ▁A TR ▁ 7 2 ▁programme ▁was ▁announced . ▁On ▁ 2 7 ▁October ▁ 1 9 8 8 , ▁the ▁first ▁prototype ▁performed ▁its ▁ma iden ▁flight ; ▁one ▁year ▁later , ▁on ▁September ▁ 2 5 , ▁ 1 9 8 9 , ▁the ▁A TR ▁ 7 2 ▁received ▁air worth iness ▁cert ification ▁from ▁the ▁French ▁Director ate ▁General ▁for ▁Civil ▁A viation . ▁During ▁the ▁following ▁month , ▁on ▁ 2 7 ▁October ▁ 1 9 8 9 , ▁Finn ish ▁air line ▁Fin na ir ▁became ▁the ▁first