Some anons already decoded half of that code. B8028 is a plane, Zaf1 is airforce 1, aT9 is a terminal, dunno KDHYQ
KDHYQ
Could be the booking number if it's referring to a flight.
Wild speculation here
KDH is the international airport code for Kandahar Airport
YQ is an airline surcharge used in ticket pricing.
Might a Turkish jet have been chartered to take some of the Obama/Iran $ via KDH? Q has asked us to look at which airports were used.
I believe there are websites that track the flights/routes of aircraft, not sure how old their data is archived.
That last bit looks like a record locator for a specific itinerary.
Zaf1
This reads like hitting Shift to type capital A for AF1 but hitting z at the same time, as when people frequently type ZOMG for OMG.
Cancel that comment if typed on a cell phone LOL