▁air - launch ▁fire works ▁system . ▁On ▁September ▁ 1 9 , ▁ 2 0 0 5 , ▁the ▁In fer no ▁Bar ge ▁was ▁pulled ▁from ▁the ▁show ▁due ▁to ▁the ▁explos ion ▁of ▁a ▁fire work ▁still ▁inside ▁its ▁mort ar ▁t ube ▁earlier ▁in ▁the ▁day . ▁ ▁The ▁structure ▁took ▁heavy ▁damage ; ▁fort un ately , ▁no ▁one ▁was ▁injured . ▁ ▁The ▁In fer no ▁Bar ge ▁returned ▁to ▁service ▁on ▁February ▁ 1 , ▁ 2 0 0 6 ▁without ▁the ▁air ▁launch ▁system ▁on ▁the ▁bar ge , ▁although ▁the ▁cause ▁of ▁the ▁accident ▁was ▁the ▁fire work ▁shell ▁itself ▁and ▁not ▁the ▁air ▁launch ▁system . ▁ ▁The ▁shell s ▁previously ▁fired ▁from ▁this ▁bar ge ▁were ▁moved ▁and ▁fired ▁from ▁the ▁center ▁s lip . ▁In ▁February ▁ 2 0 0 9 , ▁the ▁infer no ▁bar ge ▁was ▁pulled ▁from ▁the ▁show ▁and ▁under w ent ▁a ▁scheduled ▁re hab . ▁It ▁returned ▁on ▁March ▁ 1 0 , ▁ 2 0 0 9 . ▁ ▁If ▁any ▁is op ar ▁is ▁left ▁in ▁the ▁t anks ▁after ▁the ▁show , ▁it ▁is ▁burn ed ▁off ▁later ▁that ▁night . ▁ ▁Fire works ▁▁ ▁W alt ▁Disney ▁Entertainment ▁invent ed ▁a ▁new ▁way ▁of ▁launch ing ▁fire works ▁for ▁the ▁show , ▁which ▁used ▁a ▁p neum atic ▁launch ▁system , ▁instead ▁of ▁black ▁pow der ▁that ▁poll utes ▁more ▁and ▁causes ▁the ▁trail ▁of ▁an ▁ign iting ▁fire work ▁shell