AAR sign five-year MRO contract with Air Canada for Boeing 767 Maintenance MRO Business Today 23:56 AAR sign five-year MRO contract with Air Canada for Boeing 767 Maintenance AAR, a global aftermarket solutions company based in Wood Dale, Illinois has signed a 5-year agreement with Air Canada to offer airframe maintenance for the airline’s fleet of 34 Boeing 767 at AAR’s Miami MRO facility. The contract will star Share this Share on FacebookTweet on TwitterPlus on Google+