I-140 Approved and I-485 not submitted

[AlexKiran]

I am on L1A visa valid for another 2 years. My I-140 is approved on EB1 and I-485 is not submitted yet. Can I travel out of US for a short period? I don't have any Advance Parole. Will it have any impact on my GC? When do I need to apply for AP? 

[pontevecchio]

You can certainly return in L1 status if you have a L1 VISA stamp.