The Limitation of Actions in alleged Aviation Damage in Comparative law

In Iran, the Limitation of Actions in claiming damages due to air accidents is not clear. A Similar issue in The two major international treaties, the Warsaw Convention and the Montreal Convention,  has  been determined, if an action is not brought within a period of  two years, The right to damages shall be extinguished. This limitation comes a conundrum in Iranian law. On the one hand, the liability of air carriers is distinguished based on  a domestic law. Although this lapse of time is not expressed in this law, Iran has acceded to the Warsaw Convention and its amendments in the years 1975 and 2015. For this reason, it needs to be determined  if  this limitation can be extended and come to force in dometic law. To meet this need, tree questions must be be responed. The first question is about the nature of air transport? What Damages to Air Transport Can Happen? And how does Limitation of Actions perform?