It sounds like one of your domestic "763" segments was operated using a 762 ... those have similar J seats to the 763 but pitch is about 10 inches less than for the 763 (as they aren't used for overnight international flights). I believe all of the 763s had the lumbar switch removed over a year ago ... I certainly haven't seen any since early 2005. This was a marked improvement in the 763 J seat....while removing the reading lamps was because no-one used them. I miss those reading lamps but I can see the logic in the change.
Or maybe AA has pulled a 763 out of the desert (I think there were a few in long term storage, as they had a D check coming up and AA didn't need them for a few years, but I thought those were all ex-TWA birds).