Positioning crew processed as passengers using the 'P' (passenger) code will incur the passenger movement charge. To avoid this, airlines should use the 'X' code for positioning crew.
The 'X' for positioning crew works the same as the 'C' code for operating crew and will allow positioning crew to use their Crew Travel Authority (CTA) for travel.
Crew holding only a CTA will return a 'Do Not Board' directive from the APP system. However, the airline can perform an 'A' override to complete the APP transaction and receive an 'Override Accepted' message.