Travel outside US during H1B Amendment and re-entry

[psurya909]

Hi,

Help required for below query.

I was working at location A but due to project completion moved to new location B under same employer. Before moving to location B my employer raised H1B amendment and its in process.

Now my question is, I have to travel outside US due to personal emergency, can I travel and come back while the H1b amendment is in process? I have valid stamping(visa stamping in passport) till Sep 2013.

If I travel and re-enter to US while H1B amendment is in process will it be a problem?

Thanks for your help in advance.

Thanks,