A non-injury unintentional roof fall occurred on the MMU No. 003 Section during retreat or pillar mining. The roof fall entrapped (2) Fletcher mobile roof support units. Roof fall occurred in the No. 5 entry (2) crosscuts inby survey station 2418 on the 3 left panel off the 1-East submains. Roof fall reported to MSHA by phone on 1/08/2010.