US President-elect, Donald Trump has said he wants to cut government costs by cancelling the order for new planes to carry the American president.
Six weeks ahead of taking office, he tweeted: “Boeing is building a brand new 747 Air Force One for future presidents, but costs are out of control, more than $4 billion. Cancel order!”
The government has a contract with Boeing to build two or more new planes. They would enter service around 2024.
But the US Air Force has urged a faster schedule, saying the current jets are becoming too expensive to repair.
Mr Trump now uses his own plane, also a 747, but as president he would travel aboard Air Force One, which is equipped with special safety, defensive and communications equipment.
It is unclear what costs would be involved in cancelling the order.
Mr Trump later told reporters at Trump Tower in New York that Boeing was “doing a little bit of a number” and the cost was “ridiculous”.
He added: “We want Boeing to make a lot of money, but not that much money.”
Boeing spokesman, Todd Blecher told journalist that: “We are going to have to get back to you after we figure out what’s going on.”
Boeing shares fell more than one percent after the president-elect’s tweet.