VietJet signs contract for PALL Aerospace’s Avionics Cooling Filtration system for its A320 fleet MRO Business Today 23:23 VietJet signs contract for PALL Aerospace’s Avionics Cooling Filtration system for its A320 fleet VietJet, an international low-cost airline from Vietnam signed a five-year contract for the fitting of Pall Aerospace’s Avionics Cooling Fil Share this Share on FacebookTweet on TwitterPlus on Google+