I've looked at the list and 2 Ala46 F/A18s appear twice with different arrival dates but the same departure dates.
C.15-73/46.01 & C15.92/46.20 did they indeed go home early and return or are the 2nd entries in error? There were flight plans back to Las Palmas as 2x 3 ships so I'm guessing the second entries have the wrong serials.