When you upload your pictures you can see Identification numbers: field. If you know construction number/line number you should put it. It takes lots of time to update every single picture with those missing numbers.
I completed updating 737-600/900 models and now I'm working on 737-800 which seems to be work without an end.
So if you spend 30 seconds more uploading each picture with all informations you are saving lots of time to database editors, which can edit in their spare time more things.
BWIADCA - Nikon D100