An unintentional roof fall was discovered during the day shift pre-shift examination at approx. 7:00 a.m. and was called in to MSHA and State officials. The fall is located on 2 Belt Mains in the neutral entry at Break 49, located inby Spad 6555 and is approximately 25' Long x 20' Wide x 6' Thick. A clean-up plan has been submitted for approval.