On 5/21, DL110 is scheduled as a 777.
On 5/22, DL110 is a 757 without the PTV's.
On 5/23, DL110 is a 752, with PTV's.
Keep in mind, when DL
dispatches the 777 to LAX
, it is a spare aircraft. If another 777 has a mechanical, they pull the spare off of LAX
and send it international.