Dent was found top of N conveyance, #2 shaft. Though operable, hoist was removed from service (precaution) pending further inspection. Shaft inspection found loose shaft lagging. 8:55 a.m. hoist was removed from service for repairs. Personnel in the mine were evacuated through the E Mine. MSHA & NM BMS hotlines were then called. Service restored to hoist at 11:45 a.m.