I will be shooting some portraits inside of a Boeing 737 on Wednesday. I don't have an off camera flash. What kind of shooting or lighting things do you guys think I should keep in mind?

is the jet going to have power on? or is it just sitting with no auxiliary power somewhere on a ramp?

long rows of seats in your shots can look cool. if you're shooting with the 50 kind of close you can probably get away with no flash. what you're gonna run into though is the lights in the cabin possibly highlighting real bad. just do some test shots with flash and without and see what looks best and go from there.

It will have aux power on, so the cabin lights will be on. Hopefully they won't create too many shadows and such.

Head to local photo rental shop and rent a couple of lights.