Spotting at LAX today around noon, and saw a DL 744 taxi around the airfield and take off.
Apparently it is flying LAX-NRT as DL flight 283 http://flightaware.com/live/flight/DAL283
Is this a one-off substitution, or is the 744 back on LAX-NRT? I was on this same flight last week, and it was a 77L.
(Side note: A DL 77L took off around the same time as the 744, but apparently that is Flight 16 LAX-ATL -- not sure if that one is usually a 77L or not.)
[Edited 2013-02-01 14:31:39]