AP is NOT renewed for AP you have to send new Application and will get new AP in 3-4 months.
Documents: fill up Form I-131, USCIS fees $110, copy of I-485 filing receipt, 2 photographs and on cover letter write your name, A#, DOB, pending I-485 # , address and if you have I-140 filing receipt or I-140 approved receipt attach the copy and write that you need AP for travel out side of US for vacations or to meet old parents, you can write any reason for AP they don’t care.
Out side the envelope write in big bold letters: FormI-131 for Advance Parole” and mail it to correct service center address
