I used to work for hp. So I will offer 2 possibilities for a 75 to be in IAH
It is not uncommon for hp to shift them around on routes. I have seen them get sifted around for temporary service on routes that get busy and then slow down. For a while during spring break this year we were sending them to DEN
. I think SEA
might still get one. I dont know, havent kept up with their Schedule.
will also Subsitute 75s for MX
. When I was working gate A24 in PHX
last spring, my 75 inbound from SAN
got switched from a MSP
destination to ABQ
???!!. Well, N331AW (737-300) went down on MX
. Instead of leaving 100 or less pax overnight in PHX
. We sent N904AW to spend the night in ABQ
underuses there 75's. So their usually an extra one to spare for awhile with out effecting the schedule.