Change in passport after 221g administrative processing

[bummerman]

My passport got damaged (threads came loose) during 221g administrate processing phase but I was able to renew it. For the visa stamping, I have no option but to submit both new+old since the old one is mentioned in the petition, I-797, DS-160 etc. Is there any reason that I will be subject to another interview or further administrative processing. Please advise how I can prevent further delays. Thanks, folks.

[bummerman]

An immigration attorney suggested that including a cover letter with the old+new passport would be sufficient