The Flipside To Sanctions?

Over the weekend there was a plane crash in Iran - killing at least 77 people. FP summarizes:

Early reports show the Boeing was delivered to IranAir in 1974 and was the oldest passenger aircraft still operating in Iran; A U.S.-made aircraft, it has been out of production since 1984. "This plane has been one of these very old kind of aircraft that are still serving in Iran's airlines -- a Boeing 727, which is more than 40 years old," said Al Jazeera's Alireza Ronaghi. Aircraft accidents are not uncommon in Iran, where international sanctions have prevented the country from buying new aircraft parts from the West.