3 ms·
In a previous discussion, avar explains why United and Delta chose to mothball their 747s instead of retrofit them with the fuel tank interting systems that wer
by joezydeco 9y ago
In a previous discussion, avar explains why United and Delta chose to mothball their 747s instead of retrofit them with the fuel tank interting systems that were required by the FAA after December 26th, 2017. UAL and DAL flew their planes right up to the deadline.
https://news.ycombinator.com/item?id=16016654 https://news.ycombinator.com/item?id=16016654