Three Boeing mechanics working on the oxygen system of VC-25A, aka Air Force One, did not follow correct procedures and ended up contaminating the system, an Air Force investigation has concluded.
By SSGT Alex Lloyd, USAF [Public domain], via Wikimedia Commons
The 747 was undergoing regular heavy maintenance at Boeing’s Port San Antonio facility in Texas in April 2016 when the mishap occurred.
The aerospace giant had to repair the $4 million in damages at its own expense.