I-ASTM A320 Ibanga L7 yindlela yokufakwa kwezinto ezibonakalayo, ii-Studs, amandongomane, kunye nabanye abantu abazimeleyo ezenzelwe ukusetyenziswa kweqondo lobushushu. I-ATTM A320 L7 Amabanga ahlukeneyo ahlulwe kwiiklasi ezi-4 zomsebenzi, a, b, c, no-D, nganye ineepropathi ezahlukeneyo kunye noxinzelelo lwe-ropture. Iklasi ye-660 yobalo-lwazi isetyenziselwa ukuboleka, iinqanawa zoxinzelelo, iiflethi zombhobho kunye neevalves zenkonzo yobushushu obuphezulu.