The world’s largest cargo carriers, UPS and FedEx, grounded their MD-11 freighter fleets at the recommendation of Boeing, the aircraft’s manufacturer.
US logistics companies UPS and FedEx have grounded their combined fleet of more than 50 McDonnell Douglas MD-11 cargo planes.
The decision, announced on Friday evening, followed a crash involving one of the planes at Louisville International Airport in Kentucky earlier that week, which killed at least 14 people.
Im reading online that planes last 30 to 45 years, but cargo planes can last longer than that due to less use than passenger Planes?
And this is the article im reading
A lot of retired commercial passenger planes end up being repurposed for cargo. Skewed more towards narrow body planes than wide body. Fuel efficiency becomes a problem with older wide body craft so freight companies tend to buy new for that size factor.
Source: buddy who works for a company as an aircraft maintenance tech.